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    Release Notes

    2020 Releases

    26 May 2020 Release

    12 May 2020 Release

    • Automates storage configuration generation for newly created Atlas Data Lakes.
    • Allows write partitioning-aware data to S3 using the pipe.$out in Atlas Data Lake.

    05 May 2020 Release

    26 April 2020 Release

    • Fixes stability issues.

    14 April 2020 Release

    • Improves performance.
    • Supports the $currentOp stage so that you can monitor query progress on long-running queries.
    • Updates the isodate attribute to accept additional formats.
    • Refreshes the metadata catalog when you use Storage Configuration commands.

    26 March 2020 Release

    • Includes various performance and stability improvements.
    • Supports filename field references for pipe.$out.
    • Supports $toString in pipe.$out to S3 .

    09 March 2020 Release

    • Supports optionally granting Atlas Data Lake write access to S3 buckets, enabling use of pipe.$out semantics to write directly to those buckets.
    • Adds incremental store, database, collection, and view commands for storage configuration management.
    • Limits collections returned for wildcard collections to 1,000.
    • Updates the storage configuration format.

    11 February 2020 Release

    • Supports cross-database pipe.$lookup queries.
    • Supports lowercase and uppercase file extensions.
    • Template segments now support dot-separated attribute names that correspond to nested fields.

    21 January 2020 Release

    • Allows the defaultFormat to be specified without a leading dot.
    • Supports filtering based on stripes for files in ORC format.
    • Allows query attributes to be extracted after the first stage.

    2019 Releases

    10 December 2019 Release

    • Includes several performance and stability improvements.
    • Supports partition definition for the following:

      • epoch_secs, which is seconds since the Unix Epoch
      • epoch_millis, which is milliseconds since the Unix Epoch
      • UUID, which is binary subtype 4

    11 November 2019 Release

    • Includes several performance and stability improvements.
    • Adds support for reading Apache ORC files.

    29 October 2019 Release

    • Supports filtering partitions by Parquet file row group statistics.
    • Supports ObjectIds in the path when specifying partition databases.<database>.<collection>.[n].definition.

    08 October 2019 Release

    • Returns an error if a query produces a document larger than 16 MiB.
    • The pipe.$indexStats stage now produces an empty list of indexes instead of an error.
    • Supports pipe.$out to S3 storage format in JSON.
    • pipe.$match now implicitly treats all terms as conjunctions.
    • No longer parses empty files.
    • Fixes an issue that caused the {$match: {$expr: {$and: []}}} expression to terminate the connection.

    17 September 2019 Release

    • Allows nested fields in partition definitions.
    • No longer enumerates directories on S3 when a single subdirectory containing all the partitions matching the query is identified.
    • Fixes an issue where the new storage configuration did not appear on the issuing connection after running setStorageConfig.

    21 August 2019 Release

    • Adds support for the dbcmd.getLastError database command.
    • Fixes a bug with how union types are handled in Avro.
    • Supports pipe.$out aggregation pipeline stage to S3.
    • dbcmd.listIndexes now always returns an empty list.
    • Translates dot-delimited CSV and TSV keys into subdocuments.
    • Storage configuration error message now includes a link to the documentation.
    • Supports the XLSX file format.
    • Includes the correlation ID in query execution error messages.
    • Returns an error to the client when the cursor storage limit is reached.
    • Returns an error to the client on the last dbcmd.getMore if the cursor storage limit is exceeded.

    30 July 2019

    08 July 2019

    • Returns the first batch of cursor results more quickly.
    • Improves performance of pipe.$lookup when combined with pipe.$unwind.
    • Automatically supports SCRAM-SHA-1 credentials without requiring drivers to specify this authentication mechanism.
    • Provides a descriptive error message when the file format is unknown.
    • Provides additional validation on setStorageConfig.

    18 June 2019

    Initial public beta release of Atlas Data Lake.