Disallow USING clause when altering type of generated column This does not make sense. It would write the output of the USING clause into the converted column, which would violate the generation expression. This adds a check to error out if this is specified.
There was a test for this, but that test errored out for a different reason, so it was not effective. Reported-by: Jian He <jian.universal...@gmail.com> Reviewed-by: Yugo NAGATA <nag...@sraoss.co.jp> Discussion: https://www.postgresql.org/message-id/flat/c7083982-69f4-4b14-8315-f9ddb20b9834%40eisentraut.org Branch ------ REL_13_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/7589d5c5b98dee21541214950d8a303c6979dd78 Modified Files -------------- src/backend/commands/tablecmds.c | 13 ++++++++++++- src/test/regress/expected/generated.out | 3 ++- 2 files changed, 14 insertions(+), 2 deletions(-)