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Commitbb77752

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Add WAL usage reporting to ANALYZE VERBOSE output.
This change adds WAL usage reporting to the output of ANALYZE VERBOSEand autoanalyze reports. It aligns the analyze output with VACUUM,providing consistency. Additionally, it aids in troubleshooting caseswhere WAL records are generated during analyze operations.Author: Anthonin BonnefoyReviewed-by: Masahiko SawadaDiscussion:https://postgr.es/m/CAO6_Xqr__kTTCLkftqS0qSCm-J7_xbRG3Ge2rWhucxQJMJhcRA%40mail.gmail.com
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‎src/backend/commands/analyze.c

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Original file line numberDiff line numberDiff line change
@@ -305,6 +305,7 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
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Oidsave_userid;
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intsave_sec_context;
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intsave_nestlevel;
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WalUsagestartwalusage=pgWalUsage;
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BufferUsagestartbufferusage=pgBufferUsage;
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BufferUsagebufferusage;
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PgStat_Counterstartreadtime=0;
@@ -740,6 +741,7 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
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params->log_min_duration))
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{
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longdelay_in_ms;
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WalUsagewalusage;
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doubleread_rate=0;
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doublewrite_rate=0;
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char*msgfmt;
@@ -750,6 +752,8 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
750752

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memset(&bufferusage,0,sizeof(BufferUsage));
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BufferUsageAccumDiff(&bufferusage,&pgBufferUsage,&startbufferusage);
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memset(&walusage,0,sizeof(WalUsage));
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WalUsageAccumDiff(&walusage,&pgWalUsage,&startwalusage);
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total_blks_hit=bufferusage.shared_blks_hit+
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bufferusage.local_blks_hit;
@@ -818,6 +822,11 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
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(long long)total_blks_hit,
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(long long)total_blks_read,
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(long long)total_blks_dirtied);
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appendStringInfo(&buf,
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_("WAL usage: %lld records, %lld full page images, %llu bytes\n"),
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(long long)walusage.wal_records,
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(long long)walusage.wal_fpi,
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(unsigned long long)walusage.wal_bytes);
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appendStringInfo(&buf,_("system usage: %s"),pg_rusage_show(&ru0));
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ereport(verbose ?INFO :LOG,

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