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Update guidance for running vacuumdb after pg_upgrade.

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Now that pg_upgrade can carry over most optimizer statistics, we
should recommend using vacuumdb's new --missing-stats-only option
to only analyze relations that are missing statistics.

Reviewed-by: John Naylor <johncnaylorls@gmail.com>
Discussion: https://postgr.es/m/Z5O1bpcwDrMgyrYy%40nathan
This commit is contained in:
Nathan Bossart
2025-03-18 16:32:56 -05:00
parent edba754f05
commit c9d502eb68
2 changed files with 6 additions and 5 deletions
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2
src/bin/pg_upgrade/check.c
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@ -781,7 +781,7 @@ output_completion_banner(char *deletion_script_file_name)
pg_log(PG_REPORT,
"Some optimizer statistics may not have been transferred by pg_upgrade.\n"
"Once you start the new server, consider running:\n"
" %s/vacuumdb %s--all --analyze-in-stages", new_cluster.bindir, user_specification.data);
" %s/vacuumdb %s--all --analyze-in-stages --missing-stats-only", new_cluster.bindir, user_specification.data);
if (deletion_script_file_name)
pg_log(PG_REPORT,