CISL 1.3.1

Niko Neugebauer has released the newest version of his columnstore index library:

Here is the small description of what is new in this release:

  • The database snapshots (.dacpac) for all platforms are now included in the Releases\DacPacs.

  • Includes new Powershell functions for installing and removing CISL from the Instances:

    • Install-CISL.ps1 will allow you to install the CISL at multiple databases of a SQ Server Instance (or Azure SQLDB).
    • Remove-CISL.ps1 will allow you to remove the CISL from the multiple databases of a SQL Server Instance (or Azure SQLDB).
  • Support for the different collation is included.

  • Includes information on all recent SQL Server updates.

  • Included support of the new Columnstore Indexes Trace Flags in SQL Server 2016.

  • Basic Unit Tests (based on t-sqlt) are included for SQL Server 2012 & SQL Server 2014, guaranteeing the quality of the released code.

  • A good number of bug fixes.

  • Further parameter enhancements for the existing functions.

Sounds like there’s a lot packed into this release.

Related Posts

Wait Stats Related To Columnstore Indexes

Niko Neugebauer has some documentation on important wait stats around columnstore: I split the known wait types into the following distinct groups: – Batch Execution Mode (HTBUILD, HTDELETE, HTMEMO, HTREINIT, HTREPARTITION, PWAIT_QRY_BPMEMORY, BPSORT) – Columnstore Indexes (ROWGROUP_VERSION, ROWGROUP_OP_STATS, SHARED_DELTASTORE_CREATION, COLUMNSTORE_BUILD_THROTTLE, COLUMNSTORE_MIGRATION_BACKGROUND_TASK, COLUMNSTORE_COLUMNDATASET_SESSION_LIST) With an appearance in the next SQL Server version of the Batch Execution Mode for the RowStore […]

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Reserved Memory Allocation Waits And Trace Flag 834

Joe Obbish has another post looking at sub-optimal columnstore index performance: It is possible to see a scalability bottleneck in the form of high average wait time for the RESERVED_MEMORY_ALLOCATION_EXT wait if a highly concurrent workload is run on a server that consumes memory with batch mode operators. I believe that the severity of the bottleneck depends […]

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