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 <[email protected]> Reviewed-by: Melanie Plageman <[email protected]> Reviewed-by: Andres Freund <[email protected]> Reviewed-by: Jakub Wartak <[email protected]> Reviewed-by: Heikki Linnakangas <[email protected]> Reviewed-by: Thomas Munro <[email protected]> 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(-)
