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In a CHECK clause, a null result means true, whereas in a WHERE clause it means false. predtest.c provided different functions depending on which set of semantics applied to the predicate being proved, but had no option to control what a null meant in the clauses provided as axioms. Add one. Use that in the partitioning code when figuring out whether the validation scan on a new partition can be skipped. Rip out the old logic that attempted (not very successfully) to compensate for the absence of the necessary support in predtest.c. Ashutosh Bapat and Robert Haas, reviewed by Amit Langote and incorporating feedback from Tom Lane. Discussion: http://postgr.es/m/CAFjFpReT_kq_uwU_B8aWDxR7jNGE=P0iELycdq5oupi=xSQTOw@mail.gmail.com |
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| .. | ||
| clauses.h | ||
| cost.h | ||
| geqo.h | ||
| geqo_copy.h | ||
| geqo_gene.h | ||
| geqo_misc.h | ||
| geqo_mutation.h | ||
| geqo_pool.h | ||
| geqo_random.h | ||
| geqo_recombination.h | ||
| geqo_selection.h | ||
| joininfo.h | ||
| orclauses.h | ||
| pathnode.h | ||
| paths.h | ||
| placeholder.h | ||
| plancat.h | ||
| planmain.h | ||
| planner.h | ||
| predtest.h | ||
| prep.h | ||
| restrictinfo.h | ||
| subselect.h | ||
| tlist.h | ||
| var.h | ||