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pg_stat_statements: Add local_blk_{read|write}_time

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This commit adds to pg_stat_statements the two new fields for local
buffers introduced by 295c36c0c1, adding the time spent to read and
write these blocks.  These are similar to what is done for temp and
shared blocks.  This information available only if track_io_timing is
enabled.

Like for 5a3423ad8e, no version bump is required in the module.

Author: Nazir Bilal Yavuz
Reviewed-by: Robert Haas, Melanie Plageman
Discussion: https://postgr.es/m/CAN55FZ19Ss279mZuqGbuUNxka0iPbLgYuOQXqAKewrjNrp27VA@mail.gmail.com
This commit is contained in:
Michael Paquier
2023-10-19 14:03:31 +09:00
parent 295c36c0c1
commit 5147ab1dd3
4 changed files with 37 additions and 2 deletions
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20
doc/src/sgml/pgstatstatements.sgml
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@ -353,6 +353,26 @@
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>local_blk_read_time</structfield> <type>double precision</type>
</para>
<para>
Total time the statement spent reading local blocks, in milliseconds
(if <xref linkend="guc-track-io-timing"/> is enabled, otherwise zero)
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>local_blk_write_time</structfield> <type>double precision</type>
</para>
<para>
Total time the statement spent writing local blocks, in milliseconds
(if <xref linkend="guc-track-io-timing"/> is enabled, otherwise zero)
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>temp_blk_read_time</structfield> <type>double precision</type>