Add HINT for COPY TO when WHERE clause is used.
COPY TO does not support a WHERE clause, and currently fails with the error:
ERROR: WHERE clause not allowed with COPY TO
Since the intended behavior can be achieved by using
COPY (SELECT ... WHERE ...) TO, this commit adds a HINT
to the error message:
HINT: Try the COPY (SELECT ... WHERE ...) TO variant.
This makes the error more informative and helps users
quickly find the alternative usage.
Author: Atsushi Torikoshi <torikos...@oss.nttdata.com>
Reviewed-by: Jim Jones <jim.jo...@uni-muenster.de>
Discussion: https://postgr.es/m/3520c224c5ffac0113aef84a9179f...@oss.nttdata.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/229911c4bf9a4acfb2b81cff148fd8391e0a577b
Modified Files
--------------
src/backend/parser/gram.y | 1 +
src/test/regress/expected/copy2.out | 1 +
2 files changed, 2 insertions(+)
