pgsql: On second thought, disable parallelism for prepared statements.

On second thought, disable parallelism for prepared statements.

CREATE TABLE .. AS EXECUTE can turn an apparently read-only query into
a write operation, which parallel query can't handle.  It's a bit of a
shame that requires us to avoid parallel query for queries prepared via
PREPARE in all cases, but for right now it does.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/7bea19d0a9d3e6975418ffe685fb510bd31ab434

Modified Files
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src/backend/commands/prepare.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)