[slfan1989]

Purpose

Linked issue: close #1372

Prevent SQL commands from modifying a persistent Paimon table when a temporary table or view shadows it.

Brief change log

• Check for temporary targets before executing ALTER TABLE, including ADD PARTITION, DROP PARTITION, and schema changes.
• Apply the same check to INSERT OVERWRITE ... PARTITION, MSCK REPAIR TABLE, and ANALYZE TABLE.

Tests

• Verify that rejected commands preserve persistent rows, partition registrations, and statistics.
• Verify that partition overwrite and drop still work after the temporary object is removed.

API and Format

No.

Documentation

No.

[QuakeWang]

+1

[JingsongLi]

Do you have any other rejection points? Could we address them all in a single PR?

[slfan1989]

Do you have any other rejection points? Could we address them all in a single PR?

Thanks for the suggestion, @JingsongLi @QuakeWang ! I’ve extended the fix to cover ALTER TABLE, INSERT OVERWRITE ... PARTITION, MSCK REPAIR TABLE, and ANALYZE TABLE together. The regression tests verify that these commands reject shadowed targets before modifying the persistent table’s data, partition registrations, or statistics.