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Commitf6162c0

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Fix parallel amvacuumcleanup safety bug.
Commitb4af70c inverted the return value of the functionparallel_processing_is_safe(), but missed the amvacuumcleanup test.Index AMs that don't support parallel cleanup at all were affected.The practical consequences of this bug were not very serious. Hashindexes are affected, but since they just return the number of blocksduring hashvacuumcleanup anyway, it can't have had much impact.Author: Masahiko Sawada <sawada.mshk@gmail.com>Discussion:https://postgr.es/m/CAD21AoA-Em+aeVPmBbL_s1V-ghsJQSxYL-i3JP8nTfPiD1wjKw@mail.gmail.comBackpatch: 14-, where commitb4af70c appears.
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‎src/backend/access/heap/vacuumlazy.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -4120,7 +4120,7 @@ parallel_processing_is_safe(Relation indrel, LVShared *lvshared)
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/* Skip, if the index does not support parallel cleanup */
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if (((vacoptions&VACUUM_OPTION_PARALLEL_CLEANUP)==0)&&
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((vacoptions&VACUUM_OPTION_PARALLEL_COND_CLEANUP)==0))
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returntrue;
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returnfalse;
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/*
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* Skip, if the index supports parallel cleanup conditionally, but we

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