Horton

Disallow generated columns in COPY WHERE clause

Peter Eisentraut <peter@eisentraut.org>

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Commit: 8278737bfd0a37b68121a42a0b0a6775488adb48
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2025-11-06T13:02:03Z
Releases: 15.15 
Disallow generated columns in COPY WHERE clause

Stored generated columns are not yet computed when the filtering
happens, so we need to prohibit them to avoid incorrect behavior.

Co-authored-by: jian he <jian.universality@gmail.com>
Reviewed-by: Kirill Reshke <reshkekirill@gmail.com>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CACJufxHb8YPQ095R_pYDr77W9XKNaXg5Rzy-WP525mkq+hRM3g@mail.gmail.com

Files

PathChange+/−
src/backend/commands/copy.c modified +37 −0
src/test/regress/expected/generated.out modified +6 −0
src/test/regress/sql/generated.sql modified +4 −0

Discussion