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Doing this requires an assumption that the invoked btree comparison function is immutable. We could check that explicitly, but in other places such as contain_mutable_functions we just assume that it's true, so we may as well do likewise here. (If the comparison function's behavior isn't immutable, the sort order in indexes built with it would be unstable, so it seems certainly wrong for it not to be so.) Vik Fearing Discussion: https://postgr.es/m/c6e8504c-4c43-35fa-6c8f-3c0b80a912cc@2ndquadrant.com |
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| .. | ||
| clauses.c | ||
| joininfo.c | ||
| Makefile | ||
| orclauses.c | ||
| pathnode.c | ||
| placeholder.c | ||
| plancat.c | ||
| predtest.c | ||
| relnode.c | ||
| restrictinfo.c | ||
| tlist.c | ||
| var.c | ||