Release Notes

The latest version of the OmniSci Platform is 4.4.1.

Important

As with any software upgrade, it is important that you back up your data before you upgrade OmniSci. Each release introduces efficiencies that are not necessarily compatible with earlier releases of the platform. OmniSci is never expected to be backward compatible.

For assistance during the upgrade process, contact OmniSci support at support@omnisci.com before you upgrade your system.

4.4.1 - Released January 2, 2019

OmniSci release 4.4.1 includes new features as well as several bug fixes and performance improvements. It comprises the 4.4.0 release version and a fixed regression.

OmniSci Core

New Features

Added support for the ST_Disjoint, ST_DWithin, and ST_DFullyWithin geospatial functions.
Added support for get_session_info() Thrift API.
DATE datatype is compressed. Dates now have two smaller encoding sizes: 4 bytes (default) and 2 bytes. Existing date columns continue to work as before.
Added support for SAML authentication with Okta (Enterprise Edition only).

Fixed Issues and Enhancements

Usernames can now include dashes.
Attempting an ST_Contains join with a geospatial string literal argument no longer causes a crash.
User session IDs are no longer potentially exposed in OmniSci Core log files.
The hit-test cache limit has been removed and should eliminate the following error: "Cannot retrieve results for query <query>. The results have not been cached for hit-testing."
Fixed database consistency errors that could occur if the underlying filesystem ran out of disk space.
Fixed a synchronization issue for overflow/underflow checks on NVIDIA Volta and Turing GPUs.
Improved performance on String Dictionary import for multiple String Dictionary-encoded columns.
Intermediate ResultSets are now automatically compressed before being shipped between the aggregator and leaf servers. This allows ResultSets over 2 GB in uncompressed size to be passed around the cluster and can result in performance improvements due to better utilization of network bandwidth.
Fixed an issue where concurrent updates/deletes in import operations could cause table corruption.
Fixed a corner case where BOOL, TINYINT, or SMALLINT columns could result in invalid data during import.
Fixed an issue with rowids projected in CTAS that caused an error in table creation, because rowid is a reserved column name.
Added support for AM/PM designation in timestamps.
Fixed an issue where sharded tables with geospatial columns could cause a crash during insert or projection queries.
Improved performance for queries using 32-bit timestamps.
Improved memory usage during hash joins.
Fixed an issue in which hash joins on Dictionary-encoded strings, where one of the columns was empty, could cause a crash.
Deprecated/removed the following obsolete flags: --disable-rendering, --db-convert, fast-strcmp, and multi-subquery-exec.

OmniSci Render

New Feature

Support is added for pct/blend accumulation rendering modes in distributed configurations.

Fixed Issues and Enhancements

Multiple point/symbol layers using Vega projections no longer potentially render a blank image.
In distributed configurations, a multilayer rendering issue occurred in which an aggregate query and a projection query, each referencing Vega transforms, could cause a crash. This has been fixed.
Using Vega transforms on line/poly queries with empty data no longer causes an error; it now produces an empty image, as expected.

OmniSci Immerse

Fixed Issues and Enhancements

Improved error tracking to allow better triage and resolution.
Fractional numbers are now supported in global filters in Immerse.
Fixed an error that occurred when switching chart types with binned dimensions.
Deprecated: The Export Chart button has been removed from Text charts.
SAMPLE aggregate is added as an option for all chart measures in conjunction with GROUP BY.
Fixed ambiguous-column error for identically named columns on geo joins.
Fixed issues with importing of tables with geospatial columns.
Resolved issue with modifications to Custom Colors on Combo charts with color dimensions were reflected in the right pane of the UI, but not the chart palette, which caused incorrect rendering.
Updated license uploading for Community Edition.

4.3.0 - Released November 19, 2018

OmniSci release 4.3.0 consists of a number of new features as well as several bug fixes and performance improvements outlined below.

OmniSci Core

New Features

Decimal compression: Decimals now automatically use the smallest possible encoding for the specified precision/scale.
Hash joins now support null left-hand side joined to not null right-hand side and vice-versa.
Hash joins allow different integer types between the left-hand side and right-hand side.

Fixed Issues

Ensure MAX_ROWS is an integer literal and properly reject non-integer values.
Fixed an issue where CTAS did not properly parse date_trunc functions and geometry casts.
Fixed an issue where DROP DATABASE did not remove all table data from disk.
Fixed an issue where the minus sign was being counted as part of decimal precision.
Improved error handling in distributed mode.
JDBC now properly generates boolean string literals when setBoolean is called.
Properly validate DECIMAL type ranges and check for overflows.
Resolved an issue where DB owners may not have access privileges on new databases by default.
Resolved a system failure that occured for unsupported DDL statements.
Resolved a system failure that occured if a database were created then dropped before a user connected to it.
Resolved a system failure that occured when serializing multiple geospatial types in distributed mode.
Resolved a system failure when clearing GPU memory from mapdql when no GPUs are present.
Resolved a misleading error message no dashboards were returned while listing dashboards in mapdql.
Resolved a problem with geo append when existing table has uncompressed coords
Resolved an issue where ALTER TABLE on a view caused a crash.
Resolved an issue where an invalid geospatial literal could cause a system failure.
Resolved an issue where approx_count_distinct could send too much data and/or cause a system failure during serialization in distributed mode.
Resolved an issue where deleted users were not totally purged after being dropped.
Resolved an issue where hash joins on distributed would run incorrectly if one of the tables was not replicated or both tables were not sharded.
Resolved an issue where object privilege migration could be incomplete.
Resolved an issue where precision errors could occur during queries involving aggregates.
Resolved an issue where session timeouts could cause a crash in distributed mode.
Resolved an issue where the roles display for a user could be incorrect.
Resolved an issue where using privilege APIs could cause a system failure if object level privileges were disabled.
Resolved precision errors in ST_Distance and ST_Intersect for some geospatial types.
Resolved various issues in automatic FROM clause table reodering.
The last row of a CSV file is no longer ignored if the CSV file does not have a trailing new line.

OmniSci Render

New Feature

Added support for in-situ line rendering (i.e. without a copy) for projection queries (LINESTRING columns only)

Fixed Issues

Properly handle rows where all columns are NULL in the Vega transforms API.

Resolved an issue handling NULLs in Vega scales.

Resolved an issue when multiple sessions ran the same polygon hit testing query.

Resolved an issue where Vega projections would fail to be applied.

OmniSci Immerse

New Feature

Enabled in-situ line rendering for linemap.

Fixed Issues and Enhancements

Added schema validation to prevent an edge case where dashboards could become corrupt and unloadable.
Fixed an issue with linemap hover popups on single node instances.
Fixed an issue where decimal-baded global filters returned incorrect results.
Fixed an issue where the Y-axis measure in the stacked bar chart could be missing a name label.
Fixed an issue with categorical color measures in choropleth that could result in a hang.
Fixed an issue where formatting dates on combo chart could result in a hang.
Added code to ensure measure aggtypes can be updated on linemap.
Removed an error thrown when changing choropleth color dimensions.
Fixed an error in linemap where geo column names other than mapd_geo or omnisci_geo could cause errors.
Improved handling of null data on piechart.
Adjusted linemap hit testing behavior to match pointmap.
Added code to prevent an issue where dashboard state was not preserved when switching to SQL Editor.
Fixed an issue with custom SQL measures in linemap.
Improved the legend for min/max numerical color scale for linemap.
Optimized viewport clipping for rectangular/non-complex shapes.
Added code to ensure measure aggtypes can be updated on linemap.
Improved handling of color measures for linemap.
Improved linejoin drawing techniques for linemap.
Prevented linemap from showing in rendering-disabled environments.
Added code to ensure adding and deleting custom colors on combo propagates to the chart.
Improved error logging and persistence for SQLLogger.
Enabled in-situ line rendering for linemap.
Fixed timezone issues for certain timestamps set to midnight (00:00:00).

4.2.0 - Released October 29, 2018

OmniSci release 4.2 consists of a number of new features as well as several bug fixes and performance improvements outlined below.

OmniSci Core

New Features

Added top-level ACCESS privilege to check if a user logging in has any object permissions at all, and restrict Immerse capabilities accordingly.
NOTE This is a backward incompatible change. OmniSci recommends that you back up your existing database before installing OmniSci 4.2.
Added GRANT ALL privilege on database to allow for better management of object privileges
Added https support now available for major APIs - JDBC, Thrift, pymapd, KafkaImporter, StreamImporter APIs and mapdql
Added ST_MaxDistance allowing users to compute the maximum distance between a POINT and a LINESTRING
Added ST_Distance support for MULTIPOLYGONS
Added ST_Intersects support for MULTIPOLYGONS

Fixed Issues

Fixed an issue with simple literal additions returning incorrect results
INSERT now works correctly with text[] column types
SAMPLE now handled correctly on array types
Faster imports of dictionary-encoded string data - upto 3x performance improvement, depending on the data
OmniSci now uses LLVM 7.0
Catalog properly loaded even if a user logs into the non-default database first
Roles can now GRANT to other roles, rather than just individual users - this fixes an existing issue with dashboard sharing to/from roles
get_all_roles_for_user() thrift call now works for roles as well
OmniSci now supports Arrow 0.10.0 and 0.11.0
db_object_privs thrift call now supports user privileges
GRANT now supports granting multiple privileges to multiple grantees in a single command allowing for better privilege management
has_object_privilege thrift call now supports recursively returning privileges for a given user, which identifies not just their directly granted privileges but also those granted via roles
Projection queries now support columnar outputs, significantly improving the efficiency of memory management for query results.
ALTER TABLE now enabled for non-super users
Fixed incorrect timestamp precision encoding, including handling of leading zeros
Fixed edge case issues with decimal formatting for display
SAMPLE now supports varlen arguments in distributed mode with GROUP BY
Fixed an issue with long-running first load queries disallowing Immerse logins
Fixed an issue with array projections needed for improved GeoSpatial support in a distributed installation
Improvements to geo import robustness
GeoSpatial queries now supported properly in distributed mode
Fixed issues with POLYGON/MULTIPOLYGON handling within ST_Intersects
All default GeoSpatial tables now use omnisci_ as the prefix. Please update any scripts that use these tables accordingly
The default geo column name is now omnisci_geo (from mapd_geo). Please update any scripts accordingly
Fixed certain edge cases in ST_Contains(POLYGON, LINESTRING) that caused incorrect results
ST_Contains extended to support ST_Contains(MULTIPOLYGON, LINESTRING)
Several improvements in CTAS robustness - CTAS now supports most major types including GeoSpatial types (NOTE - currently these improvements are restricted to a single node. This restriction will be removed in an upcoming release)
OmniSci now uses GDAL 2.3.2 (geo import library)
Import reports line number of bad geo in CSV files
Bulk inserts for geo data now supported via JDBC API

OmniSci Render

New Features

Added support for TINYINT in vega transforms
Added support for rendering buffers larger than 4GB
Added distributed line-rendering support.

Fixed Issues

Fixed issue preventing Polygon rendering if the first render query returned empty results
Allow line/poly rendering even if render-mem-bytes is set to zero
Symbol sizing in vega now supports distance units (meters). Subsequent releases will integrate this into Immerse geo charts.
Prevent renderer crash in certain cases on shutdown via SIGINT
Fixed issue with switching density accumulation from max/min to stddev
Fixed issues with apparently incorrect render memory allocation on multiple devices
Fixed system failure caused with COPY/TRUNCATE/DROP statements executed after clear_gpu_memory is run with rendering enabled

OmniSci Immerse

New Features

Combo and Stacked bar charts support percentage (relative) views
Added support to show/hide SQL Editor in a configurable manner. See Roles and Privileges for configuration information
Added Linemap Geo Chart, allowing for LINESTRING data to be displayed and used in Geo joins as well. This chart type works with multi-layer geo charts

Fixed Issues

Several improvements in performance, usability and robustness of the Stacked Bar chart
Stacked Bar chart now supports CSV export
Multiple improvements and fixes to chart legends on multilayer Geo charts
Multiple improvements to Combo Chart related to data loading indicators and behavior
Fixed minor issues with navigation icon alignment on Chart Editor
Fixed issue causing overrides of user-specified column names in Table Importer
Raster charts no longer fail to render correctly if a dimension is added after omnisci_geo measure is added
Fixed issue with lineStyle being lost upon save/apply actions in certain cases on the Combo chart
Fixed edge case issues with handling negative values in Combo and Stacked Bar charts
Table importer: support for DOUBLE types and also fixed handling of TIME types
Removed 'atlas' mapbox style (no longer valid) from servers.json

4.1.3 - Released September 27, 2018

The 4.1.3 release is primarily focused on rebranding MapD to OmniSci.

Core Fixed Issue

Fixed an issue where Core might experience a system failure when consuming autocomplete data.

Immerse Fixed Issue

Fixed a performance issue applying a relative date range global filter to a combo chart.

4.1.2 - Released September 11, 2018

Note	Version 4.1.2 was a limited release with minor bug fixes and performance enhancements.

4.1.1 - Released September 4, 2018

Note	New users no longer have default access to client tools. To provide new users with access to Immerse and client tools, you need to grant them the `ACCESS` privilege. See Database Object Privileges .

New Features in MapD Core

MapD Core includes the following new features.

Added geospatial operator/function support:
- ST_Within (inverse of ST_Contains).
- Cartesian and Geodesic ST_Length.
- Cartesian and Geodesic ST_Perimeter for POLYGON and MULTIPOLYGON.
- Cartesian ST_Area for POLYGON, MULTIPOLYGON.
See Using Geospatial Functions.
Improved performance by reducing fixed overheads during JIT Query compilation.
Support for both fixed and variable length arrays. See Datatypes.

Resolved Issues

The following issues are resolved in MapD 4.1.1.

MapD Core

The name of the JDBC driver has changed and is now versioned. It takes the form mapdjdbc-<release-number>.jar, where <release-number> changes in sync with each release. For example, the current JDBC driver file name is mapdjdbc-4.1.1.jar.
Fixed typos in description for configuration flags.
Emails can now be used as usernames.
JDBC now supports geometry types, timestamps on SELECT queries.
Fixed invalid HA configurations in certain cases, due to quotes in configuration parameters.
Fixed system failure on fixed length array import in distributed mode.
Fixed system failure on ALTER/DROP table.
Fixed an issue where duplicate CASE statements in WHERE filter conditions compared with an OR operator caused a segfault.
Improved connection safety on MapD session creation.
clear_gpu and clear_cpu now work correctly in distributed mode.
mapd_server no longer becomes unresponsive when making too many connections in distributed mode.
Improved query times for expressions with a large number of IN operators.
Allow configurable expiry of sessions - inactive sessions can be expired in a configurable manner, and extremely long running sessions can be controlled with a session timeout.
Fixed issues with edge case inaccuracies in ST_Contains.
Fixed system failure related to edge case on revoking <username> role from <username> when <username> logs in.
Fixed errors with certain geo import edge cases.
Fixed system failure on subsequent SELECT queries after ALTER TABLE ADD COLUMN was used to add a geo column.
Fixed inability to append to existing geo table. Geo append is now faster with large tables.
Allow dashes in role names.
Fixed issue with distributed metadata updates.
Fixed invalid credential in HA connection processing.
Fixed system failure on temporary tables with geo columns.
Rename LAST_SAMPLE to SAMPLE. LAST_SAMPLE is deprecated.
Fixed bug in mapdql preventing proper handling of decimal arrays.
Add idle_session_duration for invalidating inactive sessions.
Add ability to obfuscate session ID in MapD server logs.
Fixed mapd_server system failure when using a subquery in a where clause that references a view.
S3 import fixes:
- Fix a constraint that s3 importer could detect/import at most 999 files.
- Fixed a bug where S3 importer needed to download all files in an archive before it could detect columns.
Migration history now uses correct table name.
Fixed header skipping on detection with header=true.
Better handling of NULL values/EMPTY geometries. Rows imported into geo tables with NULL/EMPTY geometry values in geo fields now cause entire row to be skipped during import.
Added ACCESS privilege to allow or deny login access for accounts with no privileges.

Rendering

Fixed run-time shader compile failure in Symbol shader when using packed colors.
Fixed mapd_server system failure while trying to render extremely large polygon table.

4.1.0 - Released July 31, 2018

New Features/Improvements

The following are features and improvements in MapD 4.1.0.

Core

Ability to synchronize user roles from LDAP (Enterprise Edition only)
ALTER TABLE ADD COLUMN now supported.
GRANT/REVOKE ALL ON DATABASE now supported.
Improved performance on Nvidia Pascal and Volta architectures on single column low-cardinality GROUP BY with COUNT(*) by using GPU shared memory.
Calcite version upgraded to 1.16.

Immerse

Stacked Bar Chart released.
Several performance/stability improvements on Combo chart.
Import UI - Ability to specify tables as replicated for distributed deployments.
Additional user interface customization options (see documentation for details).
Added auto-zoom to data bounds on geo heatmap chart.

Resolved Issues

The following issues are resolved in MapD 4.1.0.

MapD Core

Removed hidden physical columns from select * expansion for geospatial types.
Fixed mapdql crash when running `\d` on a view with geospatial columns.

MapD Core Enterprise Edition

Fixed issue where projecting float columns could return an incorrect value in distributed mode.
Fixed issue where case statement with strings caused crash in distributed mode.
Fixed issue where none encoded string could crash the aggregator in distributed mode.
Fixed issue where swap table order on a distributed join with one replicated table could give incorrect results.
Fixed issue where sharing dashboards with users but not roles did not work.
SuperUser role from LDAP did not automatically have superuser privileges granted.
Allow Grant privileges to a role that is corresponding to LDAP role
Fixed a segfault issue on `LAST_SAMPLE` when serializing resultset on distributed.
Login fails when LDAP properties are defined in mapd.conf.
Fixes to handling of table reordering for joins in a distributed setting.

Immerse

Removed double group-by in backend-rendered choropleth, improving performance
Now supports text types in backend-rendered choropleth chart color measure.
Added autozoom on creation of geo heatmap.
Fixed issue where column header names revert to `column_1`, `column_2` etc. upon import after changing a CSV import setting.
Removed/suppressed additional options in 4.1 'About Immerse' dropdown.
Fixed issue where dashboard Save button was not showing in all cases.
Fixed issue where brushed range chart on the area line combo chart was unable to render a focus chart with extracted timestamps.
Fixed issue where auto-selecting mapd_geo ignored the dimension column for a join.
Can now set a global filter on datasets containing arrays.
Fixed issue where combo chart focus and range brushes were out of sync.
Fixed issue on combo chart where the x-axis was misaligned when the x-axis dimension was a numeric datatype.
Immerse now supports TINYINT datatype.
Fixed an issue on Internet Explorer where the EULA accept button did not appear until the window was resized.
Fixed an issue where the global filter icon was not activated for a custom measure filter.
Fixed an issue where switching from Choropleth to Geo Heatmap threw an error and the Geo Join component was not clearing.
Fixed an issue where the dimension was not applied to Scatter/Pointmap if dimensions were selected after measurements.
Fixed an issue on combo chart where users were unable to set a limit on the x axis.
Fixed an issue where the scatter chart did not re-plot points after a dimension is removed.
Fixed an issue on combo chart where binning did not change for the smaller value when setting a date filter.
Fixed an issue where the Export Dashboard filter was not working.
Fixed mapd-connector to address poor query performance on large array columns.
Fixed an issue where the horizontal axis lock did not hold when switching from line to histogram chart.
Fixed an issue where turning off binning for large data sets could cause the browser to hang.
Fixed an issue to combo charts where they were unable to render the range chart after placing a restrictive dimension filter.
Fixed an issue where turning off binning on geo table could cause Immerse to stop.
Improved performance of zoom/pan on line charts.
Fixed an issue where the incorrect key symbol was displayed in the color palette after editing the line style.
Fixed an infinite error loop when switching from choropleth to table chart.
Fixed auto bin highlighting.
Now supports mixed content: http web server, https backend.
Fixed some combo chart interface inconsistencies.

4.0.2 - Released July 10, 2018

Fixed Issues

The following issues are fixed in version 4.0.2.

Migration Fixes

Fixed transaction within transaction exception when upgrading to MapD version 4.0 or later.

Rendering Fixes

Properly handle dictionary encoded strings inside a CASE statement when used as input to a Vega transformation.

MapD Immerse Fixes

Fixed latitude bounds sanitization on Mapbox chart render/zoom.

Other Fixes

Improved the stability of LAST_SAMPLE on dictionary encoded string columns
Fixed incorrect result for certain queries on dictionary encoded strings in a distributed cluster.
Fixed issue where GROUP BY on a Boolean column caused a system crash.
Properly handle projecting TINYINT columns in a distributed cluster.

4.0.1 - Released July 6, 2018

Fixed Issues

The following issues are fixed in version 4.0.1.

Migration Fixes

Sqlite3 Error: database is no longer locked after migration.
Fixed a permission migration issue when the owner of the database is not a superuser.
Fixed an issue that caused a system failure after copying geo data from csv in distributed cluster.
Fixed issue regarding migration of non-superuser dashboards from pre-4.0.

Rendering Fixes

Fixed an issue where aggxform is unable to access the alias map when no results are returned.
Fixed Invalid dimensions for texture array exception when rendering a geo pointmap in a distributed environment.
Fixed an issue with aggregating and compositing a geospatial point render.

Other Fixes

Fixed an issue that caused a segfault in UPDATE, DELETE, DROP, and CREATE stress test.
Fixed an issue that caused a segfault if no rows are passed to load_table.
Fixed an issue with COPY FROM with ARRAY.
Fixed an issue where network geo import from SSL-requiring locations failed on Ubuntu/Docker.
REGEXP now falls back to CPU when required rather than report errors.
Added DATE, TIME, TIMESTAMP support for pymapd and all Arrow consumers.
Volta performance has been improved.
Fixed an issue that caused a system failure with LAST_SAMPLE for certain high cardinality group bys.
Fixed a CHECK fail in reduceSingleRow() when using LAST_SAMPLE().
Fixed inconsistency while building role map.
Fixed issue granting CREATE dashboard via role.

4.0.0 - Released June 20, 2018

Important

Before installing MapD 4.0, MapD recommends that you back up your database. Security features are now enabled by default. Changes in the database to support security features do not allow reversion to an earlier release.
All tables that include polygon information must be re-imported for version 4.0.
The minimum supported NVIDIA driver version for MapD 4.0 is 384.81. Use the `nvidia-smi` utility included with the drivers to see the current active driver version. If you need assistance upgrading the driver, contact MapD support at support@omnisci.com.
For the complete list of limitations in this release, see Known Issues.

MapD Core

New

UPDATE and DELETE SQL commands let you change values or delete rows from your MapD database.
Added object permissions model for Database, Table, View, and Dashboard object types.
Role-based access control allows you to specify who can access different views.
Countries, US States, and US Counties tables are now automatically created and imported with initdb.
Enhanced Geospatial Support lets you import and manipulate geospatial object data.
Added support for TINYINT data type.
Added support for fragment skipping on join queries with the inner-join-skip-fragments command line flag.
Add support for LAST_SAMPLE aggregate.

Array literal syntax is now supported in insert statements. For example:

mapdql> create table ar1 (ar int[]);
mapdql> insert into ar1 values ({1,2,3});

Fixed

SMALLINT null values are now handled correctly.
Encryption in core logs is improved; AWS access keys and secrets are no longer logged in clear text.
Fixed issue for accessing a shard with a negative shard key.
Fixed issue where table <tablename> must be replicated error message was inadvertently shown for replicated tables on a distributed join.
Fixed an issue with "lazy" projections (those not in an aggregate or filter) on sharded joins.
Properly report SHARD_COUNT and PARTITIONS in the DDL generated by the \d command in mapdql.
Privileges for secondary databases are now working correctly.
Hash joins between two sharded tables now work correctly.
Projection queries on GPU use significantly less memory for lazy projections (for example, select a, b, c from table where x).

MapD Rendering Engine

New

Added four new aggregate transform modes to the Vega transform data block: distinct, countdistinct, median, and quantile.
Support for new geospatial types for line and polygon rendering.
Support for new geospatial types for point rendering using geospatial accessors.
Improved precision for Vega spatial projections.
Robust POLYGON/MULTIPOLYGON import and rendering. System no longer requires polygon triangulation, so all poly geometry, whether or not it is degenerative, can be imported and rendered without issue.
POLYGON/MULTIPOLYGON holes are now supported.
New procedural rendering technique for symbols significantly improves symbol render times.

Fixed

Various filtering issues have been fixed.
SMALLINT null values are now handled correctly.
DECIMAL supported in Vega transform operations.
Better handling of queries that return empty results.
Better stability in distributed mode when a query fails just prior to rendering.
More robust poly hit-testing support.
Appropriately handles NULLs, empty results, and decimal types with Vega transforms.

MapD Immerse

New

Shared Dashboards let you share your dashboard configurations with specific users or user roles.
Measure Formatting lets you format number and date values on the X-axis.
You can run Immerse in a completely disconnected environment.
Backend-rendered Choropleth with geospatial support has been added.
Import preview now detects all geo column types.
Vega transforms have been added to Choropleth, Pointmap, and Heatmap charts.
You can now import compressed archives of geospatial files (such as .shp files).
Saved Dashboards now have persistent URLs.

Fixed

Various filtering issues have been fixed, including relative time and date filtering.
In Internet Explorer, labels for Bar, Pie, and Bubble chart types are no longer dropped.
Under certain conditions, Immerse would not show data when custom date filters were applied. This has been fixed.
Global clear filter action now clears all table chart filters.
Issues with the appearance of tooltips in stacked bar charts have been resolved.
Zoom on Scatter Plot charts now works as expected.

3.6.1 - Released April 13, 2018

MapD Core

New

Data detection to files imported from S3

Fixed

Multiple fixes and performance improvements to S3 Import to support MapD Cloud
Improved handling of networked file systems, including EFS
Fix memory leak with certain style of select query

MapD Core Rendering Engine

Fixed

Improved multi-GPU/multilayer rendering compositing

MapD Immerse

New

New user interface for loading data to MapD from Amazon S3

Fixed

Fixed issue with MultiPolygon geoJSON parsing bounds (Choropleth).

3.6.0 - Released March 13, 2018

MapD Core

New

Enable sharding for (left-deep) outer joins
Added bulkUpdate support for JDBC to support Pentaho
Significant performance improvement on string comparisons from using std::sort

Fixed

Several fixes to auto-completion
Fix to avoid dictionary collisions in multiple databases
export_dashboard works with spaces in dashboard name
Multiple fixes to significantly improve accuracy and performance on APPROX COUNT DISTINCT, for large cardinalities
Fix issue for filter pushdown into expression range calculation when filter results in empty set
Fix broken view from changed underlying tables
ROLLBACK on connection failure with Dictionary server
Revised TColumn->Datum conversion to fix slow selects of array columns

MapD Core Rendering Engine

New

Supports spatial projections in Vega.
Supports running MapD Core in CPU-only mode (with CUDA disabled) with backend rendering enabled if a GPU is available. Requires OpenGL 4.6 or higher.
Add opacity, fillOpacity, and strokeOpacity properties to marks so that opacity can be controlled independently of the fillColor and strokeColor literals.

MapD Immerse

New

A new Bar/Line combo chart supports multiple measures. This is currently a BETA feature.
You can export chart data as a CSV file for all frontend-rendered charts.

Fixed

Filtering on timechart with histogram hangs Immerse.
Chart dimension/measurements requirement and logo disappears when hovering.
Text partially cut off in color Legend Item field when hovering.
An Immerse error occurs when dashboard data takes longer to refresh than the auto-refresh time period set in the dashboard.
Scatter plots could render two charts on top of one another.

3.5.0 - Released February 21, 2018

MapD Core

New

S3 Import: COPY FROM now supports directly loading data files (including compressed formats supported in release 3.4) from S3 buckets.
KafkaImporter: MapD can now read delimited rows from Kafka topics using the efficient binary columnar load path.
StreamImporter: New utility with improved streaming reads for data load, using binary columnar load path.
Outer join performance improvements.
Autocomplete support in mapdql based on new get_completion_hints Thrift call

Fixed

Multiple issues related to race conditions causing metadata corruption during simultaneous load and query of capped collections
Multiple JDBC-related issues, including missing checkpoints on bulk distributed loads and reporting correct JDBC versions
Edge case of filter qual pushdown causing negative cardinality estimation
Enabled use of hardware accelerated atomics for double-precision aggregates on Volta GPUs
Better exception handling of arrays in shapefile metadata
Fixed exception thrown on DROP...IF NOT EXISTS
Better error reporting if string dictionary paths not found at startup
startmapd now passes --config to mapd_web_server
mapdql: fix LineNoise memory leak
mapdql: Various error handling improvements

MapD Core Rendering Engine

New

Significant performance improvements in rendering datasets with large numbers of polygons

Fixed

Better handling of bad data in shapefiles

MapD Immerse

New

SQL Editor now includes autocomplete and syntax highlighting.
Scatter Plot and Geo Pointmap charts now support aggregations.
Immerse now allows adding additional Mapbox basemap styles and third party map tiles
Community Edition EULA is updated.

Fixed

Skinny histogram charts when using date or time extracts.
Immerse hangs when editing a chart, with the error message “Cannot read property timeBin of null”.
Y-Axis has repeating numbers.
Range chart disappears on clearing color dimension.
Unable to add second layer in multilayer chart on Firefox.
Unable to load chart after adding second multilayer in Geo Heatmap chart on Firefox.
SUM aggregation for measures in Geo Heatmap chart should not return COUNT.
Changing map style before selecting a source prevents selecting source and breaks the Dashboard button.
Extract binning does not work on timestamp.
Empty popups in Pointmap chart.
Dashboards with large number of filters generate bad sql and fail to reload

3.4.0 - Released January 16, 2018

MapD Core

New

COPY FROM command supports input files compressed with tar, zip, rar, gzip, bzip2, and tgz.
DATE_TRUNC and EXTRACT of YEAR, QUARTER and MONTH are 3-5x faster executing on GPU.
Loading of dictionary-encoded data is 15-30% faster.
“Top K” queries using LIMIT k OFFSET n with k+n < 1000 are optimized to run using k+n memory per GPU and in linear time; not yet enabled for distributed queries.
Allow simple predicates to be used in calculation of expression ranges. This allows for faster GROUP BY when binning by timestamp or numeric expressions if a narrow filter is applied on the same column.
Allow simple predicates with simple casts to be used for skipping fragments.
New initialize “-i” file option is added to SQLImporter.
Add get_completion_hints thrift call to enable friendlier SQL clients.
Add deallocate_df thrift call to deallocate an unused data frame.
Add thrift calls (and mapdql support) for get_tables, get_views, and get_physical_tables.
Speed up t and d in mapdql by requesting only the required metadata.
Add –help-advanced option to mapd_server.
Add thrift calls to set/get table epochs by name.

Fixed

Address issue where LDAP parameters cause mapd_web_server to fail to start by allowing passing LDAP parameters enclosed in double quotes.
Pushdown simple predicates containing casts of TIMESTAMP and INTs into expression range and fragment skip calculations.
Fix issues with operand nullability for time comparisons.
Fix crash on outer cross join.
Add thrift and mapdql commands for get_hardware_info (missing in mapdql help).
Fix possibly nondeterministic result of left outer join.
Sink boolean expression in a projection to its reference in the condition.
Start distributed loads at random leaf to better balance over all nodes.
Allow export/import of Immerse dashboards with spaces in the name.
Change default pagesize from 1M to 2M, add version_num to table metadata.
Recognize and use shared encoding dictionary with IN subqueries, resulting in better performance when inner and outer query use the same dictionary.
Support DECIMAL and NUMERIC for load_table_binary_columnar; improve errors
Fix equi-join on dictionary-encoded columns without shared dictionaries.
Upgrade to JDBC 4.0.
Fix processing of spaces on JDBC inserts.
Return correct count of inserted rows in JDBC executeBatch.
Allow URL format in JDBC driver spec as jdbc:mapd://<hostname:port:db:protocol>.
Fix JDBC DatabaseMetaData to return MapD version, set JDBC driver version.
Fix conversion BOOLEAN to LONG for better Hive support in SQLImporter.
Fix handling of NULL doubles in SQLImporter.

MapD Core Rendering Engine

New

Multi-thread filling poly and aggregate query render giveing a 2-4x performance improvement.
Performance of line rendering has been improved by 25% - 50%
Performance of polygon rendering is significantly faster for large data sets
New command-line option “render-poly-cache-bytes” is added to MapDServer (default 300M).
Allow threshold scale to be used with symbol shape property in Vega render spec.

Fixed

Rendering deals more gracefully with malformed polygons. If simple triangulation fails, a proxy geom will be used in its place. It will first try using a Ramer-Douglas-Peucker simplification algorithm, next will will try to generate a convex hull, and throw an error only if this also fails.
Addresses issue when the only difference between successive render_vega queries is a change between projection and aggregation.
Address issue where Rendering a poly table for the first time with a filtered query crashes server.
Mostly address GL_FRAMEBUFFER_UNSUPPORTED error seen on some older Cuda drivers on Centos.
Fix issue when a multi-GPU non-accumulation render is followed by a single-GPU accumulation render.
Always cache non-in-situ renders for get_result_row_for_pixel hit testing.

MapD Immerse

New

Dashboards can reference multiple data sources.
Geo charts can incorporate multiple layers.
Dashboards can be configured to auto-refresh on a set time interval.
New menu items in Community Edition have been added under Help to request a trial license and manage trial license keys.
Four new Base Map Themes have been added: Odyssey, Vintage, Decimal, and North Star.
Shape selection now is allowed in point maps and scatterplot charts.
A new Top Level menu - Data Manager - has been added.

Fixed

Immerse now allows highlighting and copying a field in a table chart without inadvertently applying a filter.
Text Widget can now save text on Internet Explorer 11.

3.3.1 - Released November 8, 2017

MapD Core

New

Add initialize file option to SQLImporter
Add thrift apis and mapdql comands for reporting on role/user privileges

Fixed

Fix handling of NULL in loading doubles with SQLImporter
Add export/import dashboard commands to mapdql help
Fix precision for output of decimal to file
Fixed nulls first/last sorting for distributed
Rollback failed table copy from
Reduce checkpoints to once per load, locking table to limit to one concurrent update
Apply reverse distribution to logical arguments
Add optional error percentage argument to APPROX_COUNT_DISTINCT
Move SQL importer to binary columnar format for better performance
Upgrade SQL parser to Calcite 1.14

MapD Core Rendering Engine

Fixed

Fix to reduce GL_FRAMEBUFFER_UNSUPPORTED when running older CUDA drivers on CentOS
Fix to render thread shutdown
Fix to error code on framebuffer error
Address mark property update issue when the only thing changing between render calls is sql and render property
Add multijoin and left deep inner join to table scan for rendering

MapD Immerse

New

Add nulls sort first/last to table sort

Fixed

Fix for exception raised when switching from geoheatmap to other chart type
Fix to row and pie chart to set minimum number of groups to one instead of zero
Allow SQL editor to accept SQL statements starting using WITH table expression

3.3.0 - Released October 26, 2017

MapD Core

New

Improve support for left-deep joins to allow joins of large numbers of tables
Automatically reorder tables in a query by row count
Allow encoding dictionaries to be shared among multiple columns in the same table
Add new mapdql commands to export/import Immerse dashboard definitions
Remove the limit on the number of simultaneous connections

Fixed

Allow object level privileges against multiple databases, still under trial flag
Throw an error if two operands of IN operator don’t have matching types
Allow empty IN operands
Add nested loop code to code generation
Initial pass at internal catalog functions for viewing object privileges
Fix jdbc to not ignore substitution parameter at the end of a query
Add at_most_n parameter to thrift sql_execute endpoint
Fix to join of a column against an expression
Fix for possible CPU heap corruption after memory starvation
Improve error messages on file operation failure

MapD Core Rendering Engine

New

Run all render commands on a dedicated thread, removing connection limit
Add line mark rendering type

MapD Immerse

New

Additional GTM tagging has been included
Improved error reporting on failure to load a dashboard
User logout moved to dropdown by navigation bar, count widget moved under dashboard header

Fixed

In SQL Editor, fixed issue with scrolling

3.2.4 - Released October 6, 2017

MapD Core

New

Add Thrift call load_binary_table_arrow for Arrow columnar import

Fixed

Fix loading of DECIMAL string with leading decimal point
Create object security tables if feature is enabled
Fix to checkpoint creation on epoch-based table rollback
Read fragment metadata in parallel
Parallelize cold start reload of string dictionary
Fix table rollback by epoch
Fix DECIMAL import for values between -1 and 0

MapD Core Rendering Engine

New

Support rendering of aggregate and projection queries for distributed configuration
Enable rendering where number of render GPU’s is less than query execution GPUs

Fixed

Fix logging of rendering calls

MapD Immerse

New

For Community Edition, added link to the [Community Forum](https://community.mapd.com) under Help

Fixed

Fixed issue where a line chart filter could not be removed
Fixed issue with old crossfilter instance preventing opening a new dashboard
Fixed issue where exceptions/errors prevented histogram and line charts to reload
Fixed issue with multi-series line chart filter icon not disappearing
Fixed issue creating a numerical binned multi-series line chart
Fixed issue where reverting edits on a line chart resulted in error

3.2.3 - Released September 22, 2017

MapD Core

New

Add support for object privileges, not enabled by default
Add Thrift call for load_table_binary_columnar
Update EULA text

Fixed

Add basic lock protection for drop and truncate table
Fix potential incorrect result for filtered outer join queries
Fix to improve precision in decimal arithmetic
Optimize queries with combinations of equality and null
Fix possible crash on sort of empty result
Fix to bulk import related to decimal scale
Round when reducing decimal scale on import
Write temporary install files to temp directory
Save sample data sets to temp directory during install to reduce required privs
Fix to command line options while inserting sample data
Fix to limit pushdown with offset
Allow case insensitive boolean literals on import
Fix range checking for fixed width encoded strings
Fix possible segfault on outer non-equijoin on string
Fix for distributed query with grouped sort and offset
Fix for null handling in top k queries on a single-fragment table
Fix for self-join query
Fix for possible error on query with empty ranges of type double
Fix join on fixed encoding dictionary columns with nulls
Enable HA in build of MapD Enterprise Edition

MapD Core Rendering Engine

Fixed

Fix for multi-layer rendering in distributed configurations
Improve support for ordinal scales when domain count exceeds range count
Fix for floating point issues with heat map hex binning
Fix for multi-layer rendering with 1 or more accumulation layers

MapD Immerse

New

Update EULA text
Added Google Tag Manager for product usage tracking

3.2.2 - Released September 9, 2017

MapD Core

New

Equi-joins between expressions and columns are now supported
Joins on time and date are now supported
Non-grouped projected top-k queries of form order by col limit n are now executed more efficiently
Performance improvement for grouped top-k queries on sharded tables

Fixed

Fix for projection query with order by a float column not used in a filter
Fix for null pointer exception in PreparedStatement (https://github.com/mapd/mapd-core/pull/53)
Fixes for conditions of potential arithmetic overflow
Fix for segfault on natural join, or join explicitly including rowid
Gracefully return exception on scalar subquery returning text
Fix for failure to execute join query against an empty table
Fix for failure to execute a query with parenthesis around ilike condition
Fix to enable some cases of reordering joined tables improve performance

MapD Core Rendering Engine

New

Symbols now work with multi-layer rendering
Add support for GPU rendering with EGL on IBM Power

Fixed

Fix blend accumulator type mismatch bug
Issue resolved for potential crash with geo-heatmap render
Various vega symbol update issues

MapD Immerse

New

New chart type : Text Widget
Alias for custom measures and custom dimensions
Geo heatmap (available on single node only)

Fixed

Range chart is now OFF by default
“Back to Dashboard” link is now aligned on browser resize

3.2.1 - Released August 25, 2017

MapD Core

New

allow group by floating point column, even if watchdog is enabled
allow one-to-many join on multiple columns

Fixed

fix for overflow detection for fixed encoding dictionary entry creation
disallow multi-node export, for now
fix for subquery with a CASE statement inside a derived table returning a non-grouped column
explicitly disallow LIMIT 0
fix for query with sort on a dictionary encoded field containing null values
add progressive backoff to mapdql connect retries and limit retries

MapD Core Rendering Engine

New

enable multi-sampling for smoother rendering

Fixed

Use correct cuda context index during EGL compositing
Fixing active gl context bug during distributed rendering

MapD Immerse

New

Allow switching between donut and pie chart styles for pie chart
Top level Help has one new menu item for Immerse tutorials
Declining EULA in community edition disconnects user
Default aggregation on time unit measures is MAX

Fixed

Fixed spinner on incorrect custom dimension expression
Fix for switching series dimension in a line chart or histogram to reflect new dimension
Number chart no longer exposes show range chart toggle
Fixed isue with histogram range bar width
Multi-series range chart colors are no longer reset when range chart is toggled off/on

3.2.0 - Released August 17, 2017

MapD Core

New

Tables now can be sharded by a numeric or dictionary encoded column
Dictionaries for encoded columns can be shared across multiple tables
Multi-column join is allowed provided combination of columns yields a unique join key
Tables can be joined on columns of type BIGINT, provided the column yields a unique join key
Join now allows the one-to-many case, with uniqueness in the outer table
TRUNCATE TABLE command is now supported
MapD startup has an optional parameter for maximum error for APPROX_COUNT_DISTINCT
Data import via COPY now reports on specific location of bad data
COPY TO now supports relative path names
MapD Server now defaults to ignore divide by zero

Fixed

Max string length of 32767 is now enforced
Trailing semicolon is automatically removed from SQL or SQL inside a view
Incorrect result fixed for selecting with a filter from a join view
Incorrect result fixed with LEFT JOIN resulting in a cross join
Fix issue with precision of APPROX_COUNT_DISTINCT when running on CPU
Fix issue with join on empty inner table
Fix issue with database.table syntax
Fix for possible race condition in distributed queries causing query hang

MapD Core Rendering Engine

New

Improved anti-aliasing using multi-sampling, most noticable stroking polys or symbols < 2 pixels wide
Allow dictionary-encoded string columns from geo polygon tables to be used as domains in ordinal scales
Added set of new extension functions as helpers for hexagonal headmap binning and rendering
Symbols now can be used in accumulation rendering

Fixed

Symbols that are both filled and stroked now render in the appropriate oder
Fix issue when using values from a dictionary encoded string column in an ordinal scale when rendering a GROUP BY query
Fix for crash when trying to render a GROUP BY query also sorted with ORDER BY

MapD Immerse

New

Top level Help has one additional menu item that displays core version, immerse version and whether backend rendering is enabled.
Dimension lock axes on histogram and line charts.
Range charts for histograms
Stacked histogram charts

Fixed

Issue with line chart date fields don’t reflect filter dates after clearing filter
Issue where brushing on initialized chart (Range/Line/Histogram) will extend brush filter beyond what is selected
Issue where multiple range charts and focus charts created when changing chart type
Issue where range chart with multi-series changes color of range chart when brushing range
Issue with Time entry box for line chart not applying time filter
Bug where Line chart does not cancel changes when switching from binning to extract and clicking cancel
Multi-series line chart loses color when going to and from SQL editor
Uncaught TypeError - Cannot read property ‘dimensions’ of undefined when creating a line chart

3.1.3 - Released July 27, 2017

MapD Core

New

Improved support for INTERVAL data type, and added functions for TIMESTAMPADD, TIMESTAMPDIFF, DATEADD, DATEDIFF and DATEPART. For example the following two queries can now be run, which would give equivalent results:

                  SELECT TIMESTAMP '2016-02-28 1:23:45' + INTERVAL '24' HOUR
SELECT TIMESTAMPADD(HOUR, 24, TIMESTAMP '2016-02-28 1:23:45')

Fixed

NULL now does not match other values (e.g. another NULL) in hash joins
Crash in cpu mode when a hash join inner table column is all NULLs
Crash when LIKE or REGEXP_LIKE pattern is not a literal
Problem with loading through aggregator in multi-node setups when table contains non-encoded strings or arrays

MapD Core Rendering Engine

Fixed

Bug when using dict-encoded string column as color when rendering a GROUP BY query
Crash when using a heatmap query with a LIMIT

MapD Immerse

New

SQL Editor Reference panel for tables and columns

Fixed

Issue with Number chart not removing old charts when changing aggregation type

3.1.2 - Released July 19, 2017

MapD Core

New

Division by zero behavior is now configurable via flag null-div-by-zero. New installs using systemd will default to true in their config files, meaning that division by zero returns null; existing installs will default to false, preserving the existing behavior of throwing a division by zero exception.
round_to_digit(x,y) function now supported. Rounds x to y digits.
Dictionary encoded columns may now be specified for the sql_execute_gpudf endpoint
Fast versions of statistics functions are now available. Note that these functions might overflow; use single precision float instead of double precision. STDDEV_FLOAT, STDDEV_POP_FLOAT, STDDEV_SAMP_FLOAT, VARIANCE_FLOAT, VAR_POP_FLOAT, VAR_SAMP_FLOAT, CORRELATION_FLOAT, CORR_FLOAT, COVAR_POP_FLOAT, COVAR_SAMP_FLOAT
Avoid overflows for most literal arithmetic expressions

Fixed

Crash with certain join queries when inner table is empty
Incorrect results on order by non-encoded string with filter applied on that column
Incorrect detection of overflow when multiplying decimals with negative numbers
Dictionary folders are now dropped in multi-node setups when tables are dropped
SUM and AVG overflows for tables with more than 4B rows
Crash on grouped COUNT(DISTINCT) in multi-node setups
Crash on join query when column contains all nulls

MapD Core Rendering Engine

New

Vega API now supports ability to render non-projection ( GROUP BY ) queries
Added new ExtensionFunction rect_pixel_bin as a helper for rectangular heatmap binning
New symbol vega mark type. Supports circle, square, diamond, cross, triangles, and hexagons
Added support for a new percent accumulation type, which allows a region to be colored based on one category’s percent of all results at that location.

Fixed

Fix vega update issue when mark property references new data and nothing else changes.

MapD Immerse

New

Added Custom SQL Dimension feature, allowing SQL to be used to form dimensions
STDDEV now available in UI as an aggregate type
Immerse now displays End User License Agreement when product is accessed for first time from Community Edition

Fixed

Issue with pointmap and scatterplot charts, where chart image is larger than the chart widget size
Issue with widgets shifting on dashboard after changing browser window size then restoring to original size
Issue when using custom measure on Scatterplot chart
Values between -1 and 1 now display in a typical decimal format rather than with “m” abbreviation
Incorrect behavior for points auto-sizing and manual sizing (pointmap and scatterplot)

3.1.1 - Released June 26, 2017

MapD Core

New

Multi-column hash joins now work provided the dimension table has unique composite keys
Loop join is now automatically allowed for inner tables with up to 1,000 rows
Improved performance for LIKE/ILIKE operations on dictionary-encoded columns
Improved performance for COUNT(DISTINCT) and APPROX_COUNT_DISTINCT for low cardinalities
Enhanced SQLimporter compatibility and performance with PostgreSQL
StreamInserter now offers —-quoted flag which, when set to true, removes any double-quotes in the output

Fixed

Due to an issue with the current release of glibc on many operating systems, we have moved away from a JNI interface to Calcite to avoid segfaults
Better support for batch JDBC insert (statements are no longer case sensitive)
Fix for possible race condition when using popups on a rendered chart in a distributed system
Import improvements around column detection and reject row summary
Improved error messages around user management commands
Eliminated overflow when comparing integers with high-precision decimals
Now recording rejected rows properly in case of Overflow
Now dropping string dictionaries for DROP TABLE in distributed case
Issue with AVG(float) when number of records is >2B

MapD Core Rendering Engine

No notes this release

MapD Immerse

New

Chart y-axis height can now be capped using a control on the axis, for example to exclude outliers from view. Data is not filtered from the dataset, but merely excluded from view.
X and Y axes for dc charts can now have their labels edited, allowing for friendly names
SQL editor beta now offers a command-line style interface with query history

Fixed

No longer incorrectly showing non-encoded strings as available Dimension columns

3.1.0.1 - Released June 22, 2017

Note	This point release addresses an issue introduced in recent version of glibc. JNI fails with a segfault after the operating system had been updated. This release fixes that issue by removing the JNI usage.

3.1.0 - Released June 15, 2017

Note	MapD Core for single-node usage has been open sourced under the Apache 2.0 license (https://github.com/mapd/mapd-core/blob/master/LICENSE.md). Code available at https://github.com/mapd/mapd-core . EULA at https://www.mapd.com/legal/

MapD Core

New

Initial API support for GOAI consortium (http://gpuopenanalytics.com/). New Thrift API endpoint (sql_execute_gpudf) creates a query resultset on the GPU in Arrow format and returns a handle. Other GPU kernels can work directly on the data via the returned handle, reducing the data movement normally associated with staged operations.
Improved initial GPU memory load times by more fully utilizing available PCIE bandwidth
Now supporting COVAR_POP, COVAR_SAMP, CORR
Performance for certain complex subqueries, for large IN subqueries for multi-node environments, and for MIN on a nullable float or int
Float performance improvement on AVG/SUM/MIN/MAX aggregates
Multi-way JOIN queries now use memory more efficiently

Fixed

Issue where sorting GROUP BY and AVG through view of a JOIN query returns results in non-sorted order
Problem where in some cases --allow-cpu-retry flag would not fall back to CPU
Now correctly returning list of columns for views
Crash on CREATE TABLE AS SELECT when SELECT statement returns no rows
Incorrect results when doing MAX on a float in some cases
Issue with accuracy of results with drawn polygon filters
AVG and SUM on float now supported on Kepler GPUs
Allow execution on GPUs for queries larger than can fit in GPU memory when --enable-watchdog flag is set to false
Further overflow detection for decimal type
Improved precision of numeric on initial load
Reduce data transfer to GPU memory when not required
COUNT(DISTINCT) on all NULL now returns correct (empty) result

MapD Core Rendering Engine

New

Default rendering now done through EGL. No longer dependent on Xorg
Multi-layered points/polygons can now be rendered in multi-node environments
Now using blosc/zstd compression for passing image data between nodes
Accumulation rendering now supported in multi-node environments

Fixed

Incorrect darkening of color for images with transparent colors composited on multiple GPUs/nodes
Issue with re-initializing counts for accumulation rendering when rendering a new frame
Issue with layers incorrectly persisting from one frame to another when number of layers changes from frame to frame
Problem with EGL compositing in multi-node environments
Error on accumulation rendering when using POW scale
Errors with removal of polygons from cache
Bugs when rendering polygons against empty query results
Issue when coloring by dictionary encoded string when string is in inner table of a joined query
Accumulation rendering crash when data from query doesn’t span the compositor’s gpu
Now not throwing error when fill/stroke is turned off between successive render frames
Fixed shader compile issue when updating the data reference for a packed color vega property

MapD Immerse

New

Pointmap basemap themes can now be changed
Raster charts can now render with a density color gradient (represents the number of points stacked at each pixel)
Chart axis labels can now be edited

Fixed

Various issues with the scatter chart

3.0.0 - Released April 26, 2017

Note	This version introduces a change in the Thrift API which breaks compatibility between 3.0 servers/clients and older servers/clients. Users with custom Thrift clients will need to re-run Thrift to generate the update client libraries.

Note	The deprecated v.1 Immerse is no longer available as of this release. Attempts to access v.1 dashboard links will lead to a 404 message.

Note	In order to use MapD Core Rendering Engine, CentOS and Redhat users must upgrade to CUDA driver version 375.51 or later

Note	The `—-disable-rendering` flag has been changed to be `—-rendering=false`

MapD Core

New

Native distributed scale-out capability, allowing deployment of the MapD Core database across a cluster of GPU machines
Supporting High Availability configurations, allowing MapD to be consistently available when there are issues with database instances in a High Availability Group
Native ODBC support, enabling MapD Core to be connected to 3rd party clients
VARIANCE `STDDEV_POP and STDDEV_SAMPLE`
Support for more groups in multi-column GROUP BY queries (40m - 60m groups)
Up to 10x performance improvement for IN subqueries with many values. Additional small performance improvement for IN queries with at most 3 values.
Ability to have 3+ way JOIN on a conjunction of equality expressions when each of them is one-to-one
Now offering ability to specify commonly used columns to be loaded from disk at database startup time
Supporting HH:MM time format for file import

Fixed

Issue where HAVING IS NOT NULL wasn’t applied to date extraction/truncation expressions
Issue with 3-way JOIN using star schema
Fix import correctness issues when rows are rejected
Issue where non-grouped queries returned incorrect number instead of NULL when no rows match for MAX / MIN aggregates
Issue with potential corruption during overlapping parallel loads to single table
Issue where column metadata for VIEW/s would show the term “Explanation” instead of proper metadata

MapD Core Rendering Engine

New

Rendering now uses EGL instead of GLX, removing the Xorg requirement

Fixed

Crash when rendering JOIN queries

MapD Immerse

New

Dimension axis now dynamically updates during cross-filtering to maintain fine granularity as data ranges get smaller

Fixed

Issue with Line/Histogram chart where brushing range would extend filter beyond what is selected
Chart spinners, used to indicate network wait time, are now less intrusive and appear/disappear more quickly
Restricting arrays from being selectable as dimensions/measures when not available, and visually indicating them more clearly
Certain problems with handling NULL
Certain problems with shape selector tools

2.4.0 - Released April 13, 2017

Note	The upcoming version 3.0 of MapD will no longer include the deprecated version 1.0 of the MapD Immerse visualization client. Please create dashboards within versions 2.0 and later of MapD Immerse in order to maintain ongoing support.

MapD Core

New

Now supporting CREATE TABLE AS SELECT. Does not currently support arrays, non-encoded strings, or fixed-encoding integers.
IN expressions may now have a large number of literals (up from 20 formerly)
A new parameter first_n is available in the thrift sql_execute endpoint, which limits the number of results returned to the client
Further performance improvements for HAVING queries and IN subqueries
Dynamic watchdog can now interrupt queries during the reduction phase
15-20% performance improvement for reductions for queries with many groups
mapdql now offers a \o command to generate an optimized schema for a table, showing most compact types to use for each column
Views and Tables are now shown in separate commands in mapdql. To see views, use \v

Fixed

Failure to identify div/0 errors for certain projection queries
Views with date_trunc now supported properly

MapD Core Rendering Engine

No notes this release

MapD Immerse

New

SQL Editor now available, allowing hand-written SQL queries from Immerse. Query output is tabular, capped at a 1000 row preview.
Enhanced shape selection tool now is available on all backend-rendered charts (earlier tool was available for pointmap only). New tool offers freehand selection in addition to the previously offered circle and polygon selection. Shapes may also be resized, manipulated, rotated after they are drawn.

Fixed

Problem with heatmap displaying monochrome when a gradient of colors should have been used
Bug when switching Line chart measure without first clearing measure, on chart with time dimension
Bug when switching from categorical to continuous dimension
Heatmap color incorrectly scaling by universal instead of filtered min/max range
Error when going from chart editor to Dashboards list screen

2.3.0 - Released March 28, 2017

MapD Core

New

Improved performance for HAVING queries
Improved performance for IN subqueries and raised limit on number of items in IN statement from 10K to 1M
Improved performance for queries with GROUP BY a CASE statement which buckets different date buckets in different branches
Added http parameter so jdbc session to server can be http protocol (URL example: jdbc:mapd:localhost:9092:mapd:http )

Fixed

Degradation of Calcite parser performance over time
Problem with 3+ way JOIN involved a fixed encoding column
Crash with GROUP BY nullable timestamp for Maxwell and Pascal consumer cards
Occasional crash when inserting into newly created fragment
Crash with JOIN projection queries involving a multi-fragment inner table including columns from that inner table
Now reporting correct statistics on COPY FROM wildcard input

MapD Core Rendering Engine

No notes this release

MapD Immerse

New

Dimensions which have NULL rows now display NULL results by default. May be optionally turned off

Fixed

Bug with display of choropleth image layer when Dimension / Measure / Geojson fields are selected in a particular order
Infinite redraw loop in some cases after brushing line chart
Bug preventing new filters from being applied after a polygon lasso tool filter was in place
Proper clearing of cached min/max values for chart axes
Regression for sampling for backend-rendered charts

2.2.0 - Released March 14, 2017

MapD Core

New

Support for CREATE VIEW
HAVING queries now faster, particularly for queries with many groups
After table DROP disk space for the removed table is now freed
INSERT across multiple tables now support full concurrency
More flexible support for LDAP distinguished names for authentication
Flag for –allow-cpu-retry allows queries which cannot run on GPU because of lack of memory to run on CPU

Fixed

Crash for join on conjunction of equality expressions
Problem on multiplying not null decimals by integer
Problem with an explicit inner equijoin when a filter is applied on the inner table
Intermittent problem with not rejecting equijoins with no 1-to-1 relationship
Issue with projected sub-queries in the FROM clause where various filters are applied on each level and where there are 3 or more nesting levels

MapD Core Rendering Engine

New

Can now hit-test against multiple layers that reference the same table

MapD Immerse

New

Custom measures may now be applied for backend rendered charts (pointmap, scatterplot)

Fixed

Range filters are now inclusive on each side of the filter
Bubble chart now uses padding at sides of the chart to make it easier to view bubbles at the extremes
Issue where certain large backend rendered datasets would not display until panned/zoomed
Various bugs with color-by-measure when switching chart type
Pointmap fails to redraw on zoom change, certain cases
Spurious error when creating a global filter after previously having gotten valid error on custom measure

2.1.0 - Released March 1, 2017

Note

This release makes a disk format change in order to solve problems when data is imported concurrently to multiple tables. A data migrator packaged with this release converts the old data format to the new one. Older format will no longer be supported starting from this release, and any newly created databases will be created in the new format. Backup your database before starting the data migrator. Instructions on making use of the migrator may be found in section v2.1.0 Migration.

MapD Core

New

Now able to do “top n” counts for more than 4B rows and up to 125M groups
Now possible to join against a multiple-fragment inner table
Self-joins now supported. One-to-many self joins can be done via the --allow-loop-joins flag but are not currently recommended due to performance considerations.
Faster database startup time by loading table metadata when tables are touched instead of all up front. Benefit greatest for databases with many tables but concentrated usage in a few tables.
New UNLIKELY function provides up to 4x quicker results for Immerse’s drawn polygon lasso tool
Mapdql improvements: multi-line queries now captured in history, and passwords hidden in interactive mapdql prompt

Fixed

Problem with OR queries with literal boolean operand

MapD Core Rendering Engine

New

Now possible to render multiple layers from the same polygon table. Improved performance when multiple users render concurrently from the same polygon table.

Fixed

Render bug in certain situations when same user changes data reference in two successive vega calls

MapD Immerse

New

Scatterplot chart now uses sampling to give a more accurate representation of a dataset’s full distribution
Larger text field for entering Custom Measure

Fixed

Scatterplot and pointmap popup box not appearing for saved dashboards
Line chart not always using “Auto” bin setting when appropriate, and binning labels sometimes falling out of sync with actual data displayed
Bugs related to switching from Table Chart to other charts, and vice versa

2.0.4 - Released February 14, 2017

MapD Core

New

APPROX_COUNT_DISTINCT now automatically uses exact COUNT(DISTINCT) when it is more memory efficient to do so
Queries which run longer than 20 seconds on the GPU are now safely timed out
COPY FROM command now includes detailed output information about rejected rows, and stops after 100k rejected rows, configurable using max_reject parameter in the WITH clause.
distance_in_meters function now computes up to 5x faster for floating point numbers
Twice as many distinct values can now be stored for fixed-encoding dictionary columns (255 for 8-bit and 65,535 for 16-bit)

Fixed

Range for fixed-encoding dictionary columns is now validated
Problem with APPROX_COUNT_DISTINCT non-grouped queries on an empty input
Fixed a performance regression for small cardinality GROUP BY queries on GPU

MapD Core Rendering Engine

New

Now able to pack color into 64-bit integers (previously could only do 32-bit integers). 32-bit is still recommended type, as 64-bit is wasteful.
Now supporting 64-bit integers for shading polygons

Fixed

Problem with successive vega calls where the mark type which is requested (e.g. point or polygon) is changed between the 2 calls

MapD Immerse

New

Lasso tool to allow filtering on arbitrary polygon or circle regions on a pointmap
Added ability to import and create database tables from geojson, KML and shapefile formats
Heatmap charts now order y-axis descending from top of axis for dates and strings, and use AM/PM format for hours
Introduced spinners on Dimensions/Measures during chart creation, to give clearer indication when waiting for data to return

Fixed

Issue with proper application of filter when a Global Filter’s type is changed
Bubble chart: failure to return to original, unfiltered state after a bubble filter has been removed
Proper error display when global filter results in error
Binned queries calculate bin size using higher precision for bin formation (up to 18 decimal places)
Proper removal of filters for charts which were cancelled mid-creation
Saved pointmap dashboards now correctly utilize the saved Size Domain settings
Mouseover popup box now appearing correctly for saved scatterplots

2.0.3 - Released February 1, 2017

MapD Core

New

Now running COUNT DISTINCT on GPU. >10x speedup over old implementation.
Added APPROX_COUNT_DISTINCT (HyperLogLog algorithm)
Improved concurrency in CPU-based portions of query execution yielding 15-20% latency improvement, particularly for queries that are complex or have large result sets.

Fixed

Problems with CAST: decimal to floating point; decimal to decimal; nested CAST
Problem with floating point zero literal
Problem with COUNT(*) in a 3+ way join query
Problem with unary minus or ABS on a NOT NULL floating point
Delay while reading table metadata

MapD Core Rendering Engine

Fixed

Problem rendering polygons when start_GPU configuration parameter is not zero
Problem in determining the appropriate data type for scales in the render vega
Problem with mismatched colors for dictionary-encoded strings when using blended categorical color accumulation
Problem when moving from blended accumulation to density accumulation or vice versa

MapD Immerse

New

Enabled APPROX_COUNT_DISTINCT aggregation for all types other than non-encoded strings. This appears in Immerse as the Measures aggregate button “# Unique”

Fixed

Problem escaping single quotes (‘) for multi-series line charts
Problem with inaccurate bin label when switching dimensions from a binned time dimension to a binned non-time dimension
Cancelling a chart edit caused Range Chart to disappear
Problem with number of requested bins not matching the number of rendered bins
Various errors switching between chart types
Dragging measures between slots for backend rendered chart fails to update chart

2.0.2 - Released January 20, 2017

MapD Core

New

New Python interface to support standard Python database APIs
More groups now possible in multi-column GROUP BY queries
Error messages for unsupported joins now specify problem table
Error messages for CREATE TABLE now specify problem column
Now can use alias for GROUP BY in an ORDER BY query
Column and table names may now start with an underscore (_)
Thrift’s get_server_status call now provides server start time
Now supporting explicit CAST from string literal to DATE, TIME or TIMESTAMP

Fixed

Problem with HAVING queries which use fixed encoding columns
Problem with some IN subqueries which return no results
Problem with NULL handling for NOT IN subqueries
Fixed the result of NULL OR TRUE operations
Fixed conversion to floating point for decimal literals with more than 18 decimal places

MapD Core Rendering Engine

Note	Changes to MapD Core’s GPU rendering engine, the “MapD Core Rendering Engine,” will be tracked in this section going forward.

New

Added support for HSL, LAB, and HCL color spaces
Now supporting rendering of DECIMAL and BIGINT types

Fixed

Bug when new columns are added to results of embedded vega query w/ no other change

MapD Immerse

New

Added backend-rendered Scatterplot chart for non-aggregate X/Y visualization. The old chart formerly called Scatterplot, intended for aggregated visualization, is now called Bubble Chart.
Pointmap: Zoom to geocoded location
Changed labelling for “row” chart to “bar” chart
Added area chart view for line chart
Global filters for IS NULL / IS NOT NULL
Multi-series line chart now has option to display non-enumerated items as “All Others”

Fixed

Browser crash when removing dimension sorts on table chart
Re-added visible border around mapbox shift zoom
Continuous Legend’s user-applied min/max will no longer reset when changing colors on point map
Range chart can now be removed from IE 11
No longer re-rendering all charts when entering chart editor mode
No longer updating deleted charts
Color Widget will no longer save empty values
Switching between custom color and quantitative color will no longer cause 2 different types of legend to appear and overlap
DC: No longer updating Range Chart after user has completed brushing of Range Chart
DC: Make zoom to bounds safe by snapping to global view if lat/lon values are invalid
CF: Update binning precision to address occasional incorrect forming of bins

2.0.1.1 - Released December 20, 2016

MapD Core

Fixed

Issue related to comparisons with DATE ENCODING FIXED columns
Added option to disable query watchdog via the command line option --enable-watchdog=false

2.0.1 - Released December 16, 2016

MapD Core

Fixed

Issue when calling MIN/MAX on a TEXT ENCODING DICT column
Performance regression with a high cardinality GROUP BY

MapD Immerse

Fixed

Issue with pointmap related to handling of out-of-bounds latitude/longitude values

Version 2.0

Note

Please note this version introduces a filesystem-level change to the on-disk data. After the automated migration to this version has occurred, your data directory will no longer be compatible with previous versions. Any risk is low, but please confirm prior to starting a new version of MapD that your backups are current and available.

Note	This release breaks API compatibility with the previous JDBC driver. You must use the new JDBC driver included in this release with any MapD Core 2.0 instances.

Note Version 2 of the MapD visualization web client, Immerse, now is available at the root of the host, e.g. yourserver/. Version 1 of Immerse is still available at yourserver/v1/. Links to saved version 1 dashboards will resolve to the correct address. Version 1 is deprecated, but will continue to be included in the MapD install, with sufficient notice to be given before it is removed. Henceforth, updates to Immerse will be noted in these release notes.

2.0.0 - Released December 13, 2016

MapD Core

Note

Please note this version introduces a filesystem-level change to the on-disk data. After the automated migration to this version has occurred, your data directory will no longer be compatible with previous versions. Any risk is low, but please confirm prior to starting a new version of MapD that your backups are current and available.

Note	This release breaks API compatibility with the previous JDBC driver. You must use the new JDBC driver included in this release with any MapD Core 2.0 instances.

New

Queries with multiple GROUP BY columns perform significantly better than before, particularly for queries which generate a high number of groups
Projection queries without a limit are now allowed most of the time, depending on filter selectivity
Multi-column GROUP BY now uses less memory
COPY TO now accepts any query allowed elsewhere in the system
More IN / NOT IN subqueries are supported and have better performance
ATAN function support
Up to 30% faster StreamInsert and COPY FROM import performance
Support for polygon hit testing (checking whether a backend-rendered pixel has an underlying polygon)
In addition to standard CSS-string color representations, colors can now be represented in a packed 32-bit integer format
SQL watchdog now enabled by default, to catch queries which would consume excessive resources
Glob support for COPY FROM statement, allowing multiple delimited files to be specified for import
Newly available EXPLAIN CALCITE statement show human-readable relational algebra
Full schema now reported in MapDQL when using \d option
Improved import times for small files
Smaller, 2MB JDBC driver now available
SQLImporter default behavior changed to append, if appropriate table is already available. Truncate option is now required to be specified if you want to import into an empty table.

Fixed

Issue with ORDER BY non-COUNT aggregates for queries which generate many groups
Data race condition with 3+ way JOIN
Issue with ORDER BY negative floats
Issue with ORDER BY a column when a function of that column is projected
Issue with IN subqueries when inner query is a projection query
Robustness issues with simple top count queries which generate many groups before the top operation
Issue with LIKE / REGEX on non-dictionary encoded strings
Issue when CASE expression is an argument to a COUNT aggregate expression
Issue when TRUNCATE on integers when second argument is negative
Issue when using SELECT * from a 3+ way JOIN query
Fixing edge-case Rendering bugs when updating Vega-only without changing SQL query
Render polygon stroking issue when two adjacent polygon edges overlap one another
Cleanup long-lasting HTTP connections caused by misbehaving clients. Timeout duration is configurable.
Issue in a scenario where a table had been named A then renamed to B, then dropped and recreated as A
Greater precision is now maintained for Lat/lon on rendered maps
JDBC connector mishandling of AS in SQL statements
Issue with importing DATE or TIMESTAMP as a negative UNIX epoch time representation
Issue with COPY TO for TIME columns
Issue with Linux kernel memory fragmentation
Issue with JMeter support in the JDBC driver

MapD Immerse

Note Version 2 of the MapD visualization web client, Immerse, now is available at the root of the host, e.g. yourserver/. Version 1 of Immerse is still available at yourserver/v1/. Links to saved version 1 dashboards will resolve to the correct address. Version 1 is deprecated, but will continue to be included in the MapD install, with sufficient notice to be given before it is removed. Henceforth, updates to Immerse will be noted in these release notes.

1.2.10 - Released November 3, 2016

MapD Core

New

Now supporting JOIN for three or more tables
Faster loading of cold data from disk
More detailed error messages for unsupported JOIN queries
Enhanced precision when rendering double columns for X/Y
New mapdql command \memory_summary to show current memory usage

Fixed

Issue with SORT queries containing duplicate count all aggregates
Incorrect results for OUTER JOIN queries with a projection CASE involving NULLs
COUNT DISTINCT for 2 or more columns now properly rejected
Issue with instability when close to limit of physical host memory
Inaccurate results for SUM and AVERAGE for floating point on GPU
Conversion from string to numeric types on INSERT statement
CAST from integer to float for literal constants
Issue with bigint interpretation in JDBC

1.2.9 - Released October 17, 2016

MapD Core

New

Scalar subqueries may now be run without enabling loop joins
Allow fully qualified columns not specified in project portion of query to be used in ORDER BY
Additional multi-column GROUP BY queries now run on GPU

Fixed

Issue with sub-queries having empty intermediate results
Issue with CASE statements without a specified ELSE branch
COUNT on non-dictionary encoded strings used in a GROUP BY
Issue with MIN or MAX on a string in a GROUP BY query
Reliably throw exception instead of returning empty results for division by zero
Now short-circuiting logical expressions

1.2.8 - Released October 3, 2016

MapD Core

New

Text columns now default to dictionary encoding. If old unencoded behavior required then TEXT ENCODING NONE should be used in create table statement. This does not affect existing tables, but any new tables created are affected.
Now able to color by boolean

Fixed

Issue for some CASE statements involving nullability
Issue with sort on very high cardinality column
Now throwing exception on overflow for arithmetic operations
Allow hash joins rather than loop joins in queries with ORDER BY
Issue when trying to GROUP BY array column
Issue with OR statements involving NULLs
Issue in comparing decimal column with integer literal
Issue for any string literal containing the term all or other SQL tokens
Now throwing exception for tables with very high number of columns

1.2.7 - Released September 12, 2016

MapD Core

New

Add support in JDBC driver for implicit type casting of expressions to double/string, not requiring explicit CAST operator

1.2.6 - Released September 6, 2016

MapD Core

New

Support for POSIX regular expressions, boolean match
Performance improvement for some GROUP BY ORDER BY queries with a LIMIT
Added NVARCHAR support to SQLImporter
Added function distance_in_meters
Now supporting sub-pixel morphological anti-aliasing, for better line anti-aliasing

Fixed

Problem when coloring by string with null value
Failure to update pointmap color when range of the scale changes
Parsing problem with SQL text containing “all” or “any”

1.2.5 - Released August 23, 2016

MapD Core

New

Improvement in memory efficiency for GROUP BY unnested string arrays
Added fragment size option to SQL Importer
Optimization to leverage hardware-accelerated FP64 atomics on Pascal architecture
Improved stability and performance for high cardinality group by queries

Fixed

Issue with multi-key GROUP BY on empty table
Regression with coloring by string on backend rendered images
Issue on certain hardware where backend rendered pointmap images draw to a corner/side

1.2.4 - Released August 15, 2016

MapD Core

New

EXTRACT week support
TRUNCATE support for non-decimal numeric types
CAST from timestamp to date
Partial INTERVAL support
Performance improvement for GROUP BY date
Additional performance optimizations for subqueries
LOG10 support
Backend rendering now supports all quantitative scales in vega specification, including pow, sqrt, and log

Fixed

Fixed issue with Postgres importer reporting boolean as bit
Fixed occasional slowdown for render queries on servers with many GPUs
Fixed issue affecting non-GPOUP BY queries on an empty table
Fixed issue when selecting MIN or MAX from empty table
Fixed issue for IN subqueries when inner query result is above a certain size
Fixed issue with performance for “top n” queries

1.2.3 - Released August 1, 2016

MapD Core

New

Now allow using aliases in FROM and WHERE clauses

Fixed

Made loading from cold cache (disk) faster
Fixed memory leaks around unsupported queries
Fixed problem when recreating a previously dropped table
Fixed problem when parsing CSVs with inconsistent number of columns

1.2.2 - Released July 25, 2016

MapD Core

New

Added math functions (ACOS,ASIN,ATAN,ATAN2,COS,COT,SIN,TAN,ABS,CEIL,DEGREES,EXP,FLOOR,LN,LOG,MOD,PI,POWER,RADIANS,ROUND,SIGN)
Improved performance for top k IN subqueries
Added partial support for NOT IN subqueries
Added automatic reprojection of lat/long to mercator for mapping display

Fixed

Fixed an issue for CAST from a literal decimal
Fixed CAST of NULL to a numeric type
Fixed unary minus operator for nullable inputs

1.2.1 - Released July 18, 2016

MapD Core

New

Backend rendered images can now be colored along a spectrum between two colors, based on an accumulated measure (e.g. accumulated red or blue datapoints can result in purple)
Added DROP and ALTER table support for Apache Calcite

Fixed

Added a more robust conversion of decimal literals to float, retaining more precision
Fixed an issue for CASE expressions which return booleans

1.2.0 - Released July 11, 2016

MapD Core

New

Changed SQL parser to Apache Calcite
Subquery support
Further join support (e.g. left outer join)
Case insensitivity for column and table names
New core execution engine, Relational Algebra Virtual Machine (“RAVM”), gives more flexibility allowing execution of arbitrarily complex queries
Added additional formats for date import
MapD Immerse v.2 technical preview
Redesigned user interface allows more powerful chart creation and intuitive data exploration
To access the Immerse Technical Preview Dashboards page, go to http://<server>:<port>/v2/
Immerse v.2 technical preview is an unstable preview release. A subset of major known bugs is here

Fixed

Fixed a problem with count distinct and group by queries
Fixed a problem with count on float
Fixed a problem with projection queries in limited cases
Fixed a problem where tables created via MapD web-based table importer were not consistent with tables built via SQL CREATE
Disallowed use of reserved SQL keywords as column names

Removed

Loss of Group By ordinals (would restore pending Calcite support)

Dependencies

Now requiring Java Runtime Environment (JRE) version 1.6 or higher

Version 1.1

1.1.9 - Released June 27, 2016

MapD Core

New

Improved logging and system process management
Deprecated --disable-fork flag in mapd_server. Please remove this flag from any config files.
Removed fork() from mapd_server. Automatic restart should now be handled by an external process, such as systemd.
Added graceful shutdown to mapd_web_server so that systemd more accurately reports its status
Modified mapd_server service file so that systemd more accurately reports its status
Improved logging of various mapd_server operations
Improved memory handling to better maximize GPU RAM usage

Fixed

Fixed a bug that prevented queries from running which were joining an empty table
Fixed a subtle stroke/line visual defect when polygons are rendered on the backend

1.1.8 — Released June 21, 2016

MapD Core

New

Added \copygeo command to support ingesting shapefiles
Added backend API for rendering polygons

Fixed

Improved performance of CASE queries that don’t have an ELSE clause
Fixed a crash that would occur when certain large output results were generated
Improved performance of queries, such as SELECT * FROM table_name LIMIT 5
Fixed a bug that would sometimes omit results from queries with AVG where NULLs were present

1.1.7 — Released June 13, 2016

MapD Core

Fixed

Fixed bug where certain long-running queries would needlessly block others
Immerse: fixed a problem where embedding apostrophes or % in filters or custom filters could cause errors
Immerse: added MapDCon example for Node.js

1.1.6 — Released May 31, 2016

MapD Core

New

Added Apache Sqoop support to the MapD JDBC driver. Please contact us at support@mapd.com to obtain the JDBC driver.
Improved performance when grouping on date_trunc with additional columns

Fixed

Fixed a bug that would appear when calculated fields tried to divide by zero
Fixed bug with CASE expressions
Fixed bug where COPY statement blocks execution of other queries

1.1.5 — Released May 23, 2016

MapD Core

New

Improved error logging to reveal the root kernel launch error for group by queries
Added a new API endpoint sql_validate to the API

Fixed

Fixed a bug that calculated incorrect results onCOUNT(CASE....) style conditional counting queries
Fixed a memory usage and performance bug which was causing some render API calls to timeout

1.1.4 — Released May 16, 2016

MapD Core

New

Improved memory fragmentation handling by adding support for huge pages.
Improved performance when joining large tables to small tables.
Improved join on dictionary strings performance.

Fixed

Fixed out-of-bound access in VRAM when out-of-slot exception raised
Fixed issue with queries returning empty result sets
More conservative tuple threshold for compaction, fixing count overflow on large tables
Reduced memory fragmentation for long-running servers

1.1.3 — Released May 9, 2016

MapD Core

New

Added a new chart type: Number Chart. The Number Chart shows a single value, making it simpler to point out important averages, totals, etc.
Added a --quiet flag to mapdql to supress it’s informational messages from appearing in STDOUT
Added frontend-rendered choropleth overlays to Point Map charts
Added a watchdog capability to catch SQL queries that are poorly formulated
Improved the Database Engine log messages to improve readability, and consistency
Improved the render() API to work with more column types. You can now color output by values taken from your boolean and decimal columns

Fixed

Fixed a bug that caused Bar Charts to jump around when users clicked on certain rows in long multi-page chart instances
Fixed a bug where the CSV import logic prevented some quoted empty strings from being handled properly
Fixed a bug where the CSV import logic rejected rows with empty strings in the last position
Fixed a bug where the import logic wouldn’t properly handle string arrays with embedded NULL elements
Fixed a bug where the SQL AVG() function would introduce rounding errors under some circumstances
Fixed a bug where SQL statements with JOIN and HAVING clauses wouldn’t execute

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Main Content

Release Notes

4.4.1 - Released January 2, 2019

OmniSci Core

New Features

Fixed Issues and Enhancements

OmniSci Render

New Feature

Fixed Issues and Enhancements

OmniSci Immerse

Fixed Issues and Enhancements

4.3.0 - Released November 19, 2018

OmniSci Core

New Features

Fixed Issues

OmniSci Render

New Feature

Fixed Issues

Properly handle rows where all columns are NULL in the Vega transforms API. Resolved an issue handling NULLs in Vega scales. Resolved an issue when multiple sessions ran the same polygon hit testing query. Resolved an issue where Vega projections would fail to be applied.

OmniSci Immerse

New Feature

Fixed Issues and Enhancements

4.2.0 - Released October 29, 2018

OmniSci Core

New Features

Fixed Issues

OmniSci Render

New Features

Fixed Issues

OmniSci Immerse

New Features

Fixed Issues

4.1.3 - Released September 27, 2018

Core Fixed Issue

Immerse Fixed Issue

4.1.2 - Released September 11, 2018

4.1.1 - Released September 4, 2018

New Features in MapD Core

Resolved Issues

MapD Core

Rendering

4.1.0 - Released July 31, 2018

New Features/Improvements

Core

Immerse

Resolved Issues

MapD Core

MapD Core Enterprise Edition

Immerse

4.0.2 - Released July 10, 2018

Fixed Issues

Migration Fixes

Rendering Fixes

MapD Immerse Fixes

Other Fixes

4.0.1 - Released July 6, 2018

Fixed Issues

Migration Fixes

Rendering Fixes

Other Fixes

4.0.0 - Released June 20, 2018

MapD Core

New

Fixed

MapD Rendering Engine

New

Fixed

MapD Immerse

New

Fixed

3.6.1 - Released April 13, 2018

MapD Core

New

Fixed

MapD Core Rendering Engine

Fixed

MapD Immerse

New

Fixed

3.6.0 - Released March 13, 2018

Properly handle rows where all columns are NULL in the Vega transforms API.

Resolved an issue handling NULLs in Vega scales.

Resolved an issue when multiple sessions ran the same polygon hit testing query.

Resolved an issue where Vega projections would fail to be applied.