Set stats_temp_directory to tmp directory #645
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Moves the stats temporary file outside the data directory to improve disk performance. According to the docs: ``` stats_temp_directory (string) Sets the directory to store temporary statistics data in. This can be a path relative to the data directory or an absolute path. The default is pg_stat_tmp. Pointing this at a RAM-based file system will decrease physical I/O requirements and can lead to improved performance. This parameter can only be set in the postgresql.conf file or on the server command line. ``` PG15 rewrote the statistics collector, from that version onward the statistics are no longer stored in files and the `stats_temp_directory` config options was deprecated. Once the DB upgrades to PG15 this setting can be removed.
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What this PR does / why we need it
Moves the stats temporary file outside the data directory to improve
disk performance.
According to the docs:
PG15 rewrote the statistics collector, from that version onward the
statistics are no longer stored in files and the
stats_temp_directoryconfig options was deprecated. Once the DB upgrades to PG15 this setting
can be removed.
Special notes for your reviewer
Checklist