pgsql: Use streaming I/O in ANALYZE.
| От | Thomas Munro |
|---|---|
| Тема | pgsql: Use streaming I/O in ANALYZE. |
| Дата | |
| Msg-id | E1rtdgJ-00135G-L1@gemulon.postgresql.org обсуждение исходный текст |
| Список | pgsql-committers |
Use streaming I/O in ANALYZE. The ANALYZE command prefetches and reads sample blocks chosen by a BlockSampler algorithm. Instead of calling [Prefetch|Read]Buffer() for each block, ANALYZE now uses the streaming API introduced in b5a9b18cd0. Author: Nazir Bilal Yavuz <byavuz81@gmail.com> Reviewed-by: Melanie Plageman <melanieplageman@gmail.com> Reviewed-by: Andres Freund <andres@anarazel.de> Reviewed-by: Jakub Wartak <jakub.wartak@enterprisedb.com> Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi> Reviewed-by: Thomas Munro <thomas.munro@gmail.com> Discussion: https://postgr.es/m/flat/CAN55FZ0UhXqk9v3y-zW_fp4-WCp43V8y0A72xPmLkOM%2B6M%2BmJg%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/041b96802efa33d2bc9456f2ad946976b92b5ae1 Modified Files -------------- src/backend/access/heap/heapam_handler.c | 29 ++++++----- src/backend/commands/analyze.c | 85 ++++++++++---------------------- src/include/access/heapam.h | 5 +- 3 files changed, 43 insertions(+), 76 deletions(-)
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