Columnstore Reorganize Option

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
sql
Domain
databases

Research direction

No file, test, or entry point is named. Clarify where the option belongs and define acceptance checks for manually reorganizing pre-2019 columnstore indexes before starting.

Written by the indexing model from the issue text.

Description

Review the option to include column store reorganize option. It will be a great help for the SQL Server editions below 2019 as from 2019 tuple-mover is helped by a background merge task that automatically compresses smaller open delta rowgroups that have existed for some time as determined by an internal threshold, or merges compressed rowgroups from where a large number of rows has been deleted.
Until SQL Server 2017, We need to manually Reorganize a column store index forces delta store row groups into compressed row groups in columnstore, and combine smaller compressed row groups into larger row groups.

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