07b39083c2
Since pg_dump doesn't treat the member operators and functions of operator classes/families (that is, the pg_amop and pg_amproc entries, not the underlying operators/functions) as separate dumpable objects, it missed their dependency information. I think this was safe when the code was designed, because the default object sorting rule emits operators and functions before opclasses, and there were no dependency types that could mess that up. However, the introduction of range types in 9.2 broke it: now a type can have a dependency on an opclass, allowing dependency rules to push the opclass before the type and hence before custom operators. Lacking any information showing that it shouldn't do so, pg_dump emitted the objects in the wrong order. Fix by teaching getDependencies() to translate pg_depend entries for pg_amop/amproc rows to look like dependencies for their parent opfamily. I added a regression test for this in HEAD/v12, but not further back; life is too short to fight with 002_pg_dump.pl. Per bug #15934 from Tom Gottfried. Back-patch to all supported branches. Discussion: https://postgr.es/m/15934-58b8c8ab7a09ea15@postgresql.org
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