Thread: pgsql: doc: Improve descriptions of tup_returned and tup_fetched in pg_
doc: Improve descriptions of tup_returned and tup_fetched in pg_stat_database Previously the descriptions of tup_returned and tup_fetched columns in pg_stat_database view were confusing. This commit improves them so that they represent the following formulas of those columns more accurately. * pg_stat_database.tup_returned = sum(pg_stat_all_tables.seq_tup_read) + sum(pg_stat_all_indexes.idx_tup_read) * pg_stat_database.tup_fetched = sum(pg_stat_all_tables.idx_tup_fetch) In these formulas, note that the counters for some system catalogs like pg_database shared across all databases of a cluster are excluded from the calculations of sum. Author: Masahiro Ikeda Reviewed-by: Fujii Masao Discussion: https://postgr.es/m/9eeeccdb-5dd7-90f9-2807-a4b5d2b76ca3@oss.nttdata.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/3465c8a8692fb628bc2710fbeedb9aeb534b0400 Modified Files -------------- doc/src/sgml/monitoring.sgml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)