Horton

Re: tablecmds.c/MergeAttributes() cleanup

Peter Eisentraut <peter@eisentraut.org>

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From: Peter Eisentraut <peter@eisentraut.org>
To: pgsql-hackers <pgsql-hackers@postgresql.org>
Cc: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2024-01-22T12:43:38Z
Lists: pgsql-hackers

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On 06.12.23 09:23, Peter Eisentraut wrote:
> The (now) second patch is also still of interest to me, but I have since 
> noticed that I think [0] should be fixed first, but to make that fix 
> simpler, I would like the first patch from here.
> 
> [0]: 
> https://www.postgresql.org/message-id/flat/24656cec-d6ef-4d15-8b5b-e8dfc9c833a7%40eisentraut.org

The remaining patch in this series needed a rebase and adjustment.

The above precondition still applies.

Commits

  1. Fix segmentation fault in MergeInheritedAttribute()

  2. Improve compression and storage support with inheritance

  3. Split some code out from MergeAttributes()

  4. MergeAttributes code deduplication

  5. Add a const decoration

  6. MergeAttributes: convert pg_attribute back to ColumnDef before comparing

  7. Refactor ATExecAddColumn() to use BuildDescForRelation()

  8. Move BuildDescForRelation() from tupdesc.c to tablecmds.c

  9. Push attcompression and attstorage handling into BuildDescForRelation()

  10. Push attidentity and attgenerated handling into BuildDescForRelation()

  11. Add TupleDescGetDefault()

  12. MergeAttributes() and related variable renaming

  13. Clean up MergeCheckConstraint()

  14. Clean up MergeAttributesIntoExisting()

  15. Remove useless if condition

  16. Make more use of makeColumnDef()

  17. Add some const decorations

  18. Remove ancient special case code for dropping oid columns

  19. Remove ancient special case code for adding oid columns

  20. Remove obsolete comment about OID support