pgsql: Disallow specifying ON_ERROR option without value.

Disallow specifying ON_ERROR option without value.

The ON_ERROR option of the COPY command previously allowed omitting
its value, which was inconsistent with the syntax synopsis in the
documentation and the behavior of other non-boolean COPY options.

This change enforces providing a value for the ON_ERROR option,
ensuring consistency across other non-boolean options and aligning
with the documented syntax.

Author: Atsushi Torikoshi
Reviewed-by: Masahiko Sawada
Discussion: https://postgr.es/m/a9770bf57646d90dedc3d54cf32634b2%40oss.nttdata.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/a6d0fa5ef840bc98e14cb34ecf672e6e2e245517

Modified Files
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src/backend/commands/copy.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)