> *1st time query executed with PARALLEL DEGREE 2 * > explain analyze select /*+* PARALLEL(A 2)* */ * from > test_compare_all_col_src1 A; > QUERY > PLAN > > ---------------------------------------------------------------------------------------------------------------------------------------------------- > Gather (cost=10.00..45524.73 rows=949636 width=97) (actual > time=0.673..173.017 rows=955000 loops=1) > Workers Planned: 4 > * Workers Launched: 4* > -> Parallel Seq Scan on test_compare_all_col_src1 a > (cost=0.00..44565.09 rows=237409 width=97) (actual time=0.039..51.941 > rows=191000 loops=5) > Planning Time: 0.093 ms > * Execution Time: 209.745 ms* > (6 rows) >
Your alias is not enclosed in double quotes, so it is downcased to "a" (as can be seen from the alias printed in the plan). But pg_hint_plan hints don't follow the downcasing convention, so the hint on "A" does not match the alias "a", and so is ignored. Cheers, Jeff >
