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Commit17d8bba

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Fix copy-paste error related to the autovacuum launcher in pgstat_io.c
Autovacuum launchers perform no WAL IO reads, but pgstat_tracks_io_op()was tracking them as an allowed combination for the "init" and "normal"contexts.This caused the "read", "read_bytes" and "read_time" attributes ofpg_stat_io to show zeros for the autovacuum launcher rather than NULL.NULL means that a combination of IO object, IO context and IO operationhas no meaning for a backend type. Zero is the same as telling that acombination is relevant, and that WAL reads are possible in anautovacuum launcher, but it is not relevant.Copy-pasto introduced ina051e71.Author: Ranier Vilela <ranier.vf@gmail.com>Reviewed-by: Nazir Bilal Yavuz <byavuz81@gmail.com>Discussion:https://postgr.es/m/CAEudQAopEMAPiUqE7BvDV+x2fUPmKmb9RrsaoDR+hhQzLKg4PQ@mail.gmail.com
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‎src/backend/utils/activity/pgstat_io.c

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Original file line numberDiff line numberDiff line change
@@ -512,7 +512,7 @@ pgstat_tracks_io_op(BackendType bktype, IOObject io_object,
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*/
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if (io_object==IOOBJECT_WAL&&io_op==IOOP_READ&&
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(bktype==B_WAL_RECEIVER||bktype==B_BG_WRITER||
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bktype==B_AUTOVAC_WORKER||bktype==B_AUTOVAC_WORKER||
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bktype==B_AUTOVAC_LAUNCHER||bktype==B_AUTOVAC_WORKER||
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bktype==B_WAL_WRITER))
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return false;
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