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Added a new column _block_number#47532

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SmitaRKulkarni merged 83 commits intomasterfrom
44532_Persistent_virtual_column__block_number
Sep 20, 2023
Merged

Added a new column _block_number#47532
SmitaRKulkarni merged 83 commits intomasterfrom
44532_Persistent_virtual_column__block_number

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@SmitaRKulkarni SmitaRKulkarni commented Mar 13, 2023

Changelog category (leave one):

  • New Feature

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
Added a new column _block_number resolves #44532

Implementation:

  • _block_number column is not persisted for new blocks.
  • For merges if the value is not set then its taken from part info.
  • Added MergeTreeSetting allow_experimental_block_number_column, only when this is enabled column is persisted.
  • If not persisted, querying this column will return the min block number of part.
    Testing:
  • Added a test for _block_number column in 02668_column_block_number.sql

Implementation:
* _block_number column is not persisted for new blocks.
* For merges if the value is not set then its taken from part info.
Testing:
* Added a test for _block_number column in 02668_column_block_number.sql
@SmitaRKulkarni SmitaRKulkarni marked this pull request as draft March 13, 2023 13:15
@rschu1ze rschu1ze self-assigned this Mar 16, 2023
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@rschu1ze : Thanks for the review. I will look into the comments.
This PR is still in progress, I will fix the failing tests (most of the because of virtual column change) and update docs too.

@robot-clickhouse robot-clickhouse added the pr-feature Pull request with new product feature label Apr 12, 2023
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robot-ch-test-poll4 commented May 2, 2023

This is an automated comment for commit 8c5f391 with description of existing statuses. It's updated for the latest CI running

✅ Click here to open a full report in a separate page

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- Disabled allow_experimental_block_number_column by default and fixed tests accordingly
@SmitaRKulkarni SmitaRKulkarni force-pushed the 44532_Persistent_virtual_column__block_number branch from e9edb49 to 9ae8713 Compare September 18, 2023 16:44
@SmitaRKulkarni SmitaRKulkarni marked this pull request as ready for review September 18, 2023 16:47
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Persistent virtual column _block_number

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