Horton

Provide FORCE_NULL * and FORCE_NOT_NULL * options for COPY FROM

Andrew Dunstan <andrew@dunslane.net>

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Commit: f6d4c9cf162b70f2837fb6c2a83e80a3f3410695
Author: Andrew Dunstan <andrew@dunslane.net>
Date: 2023-09-30T16:34:41Z
Releases: 17.0 
Provide FORCE_NULL * and FORCE_NOT_NULL * options for COPY FROM

These options already exist, but you need to specify a column list for
them, which can be cumbersome. We already have the possibility of all
columns for FORCE QUOTE, so this is simply extending that facility to
FORCE_NULL and FORCE_NOT_NULL.

Author: Zhang Mingli
Reviewed-By: Richard Guo, Kyatoro Horiguchi, Michael Paquier.

Discussion: https://postgr.es/m/CACJufxEnVqzOFtqhexF2+AwOKFrV8zHOY3y=p+gPK6eB14pn_w@mail.gmail.com

Files

PathChange+/−
doc/src/sgml/ref/copy.sgml modified +4 −2
src/backend/commands/copy.c modified +8 −4
src/backend/commands/copyfrom.c modified +6 −2
src/backend/commands/copyto.c modified +1 −4
src/backend/parser/gram.y modified +8 −0
src/include/commands/copy.h modified +2 −0
src/test/regress/expected/copy2.out modified +44 −0
src/test/regress/sql/copy2.sql modified +30 −0

Documentation touched

Discussion