PG17 - ALTER TABLE ... ALTER COLUMN ... SET EXPRESSION command

[m3hm3t]

This PR disallows ALTER TABLE ... ALTER COLUMN ... SET EXPRESSION on all Citus table types (local, distributed, and partitioned distributed) by adding an error check in ErrorIfUnsupportedAlterTableStmt. A new regression test verifies that each table type fails with a consistent error message when attempting to set an expression.

Copilot wasn't able to review any files in this pull request.

Files not reviewed (3)

• src/backend/distributed/commands/table.c: Language not supported
• src/test/regress/expected/pg17.out: Language not supported
• src/test/regress/sql/pg17.sql: Language not supported

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Please upload report for BASE (release-13.0@62a00b1). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff               @@
##             release-13.0    #7814   +/-   ##
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  Coverage                ?   89.62%           
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  Files                   ?      274           
  Lines                   ?    59728           
  Branches                ?     7452           
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  Hits                    ?    53531           
  Misses                  ?     4063           
  Partials                ?     2134           

[naisila]

LGTM 🚀

Remember to rebase to release-13.0 and merge after all tests have passed.