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pgstattuple

pgstattuple is a contrib module providing various functions to obtain tuple-level statistics.

pgstattuple was added in PostgreSQL 7.2 (commit 9a23885f).

Change history

• PostgreSQL 10
  • function pgstathashindex() added (commit e759854a)
  • reduce locking when examining a hash index (commit d4b5d4ca)
  • GRANT permissions used to control pgstattuple function usage (commit fd321a1d)
• PostgreSQL 9.5
  • function pgstattuple_approx() added (commit 5850b20f)
• PostgreSQL 9.4
  • functions converted to use regclass types as the argument (commit 1dc11866)
• PostgreSQL 9.3
  • function pgstatginindex() added (commit 357cbaae)
• PostgreSQL 9.1
  • converted to an extension (commit 629b3af2)
• PostgreSQL 8.4
  • pgstatindex() and pg_relpages() adapted to handle tables and indexes with over 2 billion pages (commit d287818e)
• PostgreSQL 8.3
  • following functions moved to new contrib module pageinspect (commit 64058429):
    • bt_metap()
    • bt_page_items()
    • bt_page_stats()
  • function execution restricted to superusers (commit 38c75ecf)
• PostgreSQL 8.2
  • following functions added (commit 74924d29):
    • pgstatindex()
    • pg_relpages()
    • bt_metap()
    • bt_page_items()
    • bt_page_stats()
• PostgreSQL 7.2
  • added (commit 9a23885f), although it was not included in the release notes

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