Allow treating TABLESAMPLE scans as parallel-safe.
This was the intention all along, but an extraneous "return;" in
set_rel_consider_parallel() caused sampled rels to never be marked
consider_parallel.
Since we don't have any partial tablesample path/plan type yet, there's
no possibility of parallelizing the sample scan itself; but this fix
allows such a scan to appear below a parallel join, for example.
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/2c6e6471af9f5b6e4d1b25814a86a1dbd2eb928a
Modified Files
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src/backend/optimizer/path/allpaths.c | 1 -
1 file changed, 1 deletion(-)