pgsql: Add EXPLAIN (IO) instrumentation for SeqScan
| От | Tomas Vondra |
|---|---|
| Тема | pgsql: Add EXPLAIN (IO) instrumentation for SeqScan |
| Дата | |
| Msg-id | E1wADe4-003S8t-3C@gemulon.postgresql.org обсуждение исходный текст |
| Список | pgsql-committers |
Add EXPLAIN (IO) instrumentation for SeqScan Adds support for EXPLAIN (IO) instrumentation for sequential scans. This requires adding shared instrumentation, using the separate DSM approach introduced by dd78e69cfc33. Author: Tomas Vondra <tomas@vondra.me> Reviewed-by: Melanie Plageman <melanieplageman@gmail.com> Reviewed-by: Lukas Fittl <lukas@fittl.com> Reviewed-by: Andres Freund <andres@anarazel.de> Discussion: https://postgr.es/m/flat/a177a6dd-240b-455a-8f25-aca0b1c08c6e%40vondra.me Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/3b1117d6e2e47d86cdbd978b79434c630cb0ef52 Modified Files -------------- src/backend/commands/explain.c | 25 +++++++ src/backend/executor/execParallel.c | 11 +++ src/backend/executor/nodeSeqscan.c | 133 ++++++++++++++++++++++++++++++--- src/include/executor/instrument_node.h | 19 +++++ src/include/executor/nodeSeqscan.h | 9 +++ src/include/nodes/execnodes.h | 1 + src/test/regress/expected/explain.out | 18 ++++- src/test/regress/sql/explain.sql | 4 +- src/tools/pgindent/typedefs.list | 2 + 9 files changed, 209 insertions(+), 13 deletions(-)
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