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vacuumdb

vacuumdb is a core utility for vacuuming and analyzing PostgreSQL.

vacuumdb was added in PostgreSQL 7.0.

Usage

vacuumdb is effectively a command-line wrapper around the VACUUM and ANALYZE commands, with additional convenience functionality for:

• running ANALYZE in incremental stages (--analyze-in-stages option)
• vacuuming all databases in a single pass (--all option)

vacuumdb --all option

Somewhat counterintuitively, vacuumdb rejects the -d/--dbname option when --all is specified:

$ vacuumdb --all --analyze-in-stages -d 'host=node1 port=5433'
vacuumdb: error: cannot vacuum all databases and a specific one at the same time

In this case use the --maintenance-db option to provide an explicit database name or conninfo string.

Source code

The vacuumdb source code is located at src/bin/scripts/vacuumdb.c.

Change history

• PostgreSQL 14
  • option --no-index-cleanup added (commit 9550ea30)
  • option --no-truncate added (commit 9550ea30)
  • option --no-process-toast added (commit 7cb3048f)
• PostgreSQL 13
  • option --parallel added (commit 47bc9ced)
• PostgreSQL 12
  • options --min-xid-age and --min-mxid-age added (commit 00d1e88d)
  • options --disable-page-skipping and --skip-locked added (commit 354e95d1)
• PostgreSQL 9.5
  • option -j/--jobs for parallel processing added (commit a1792320)
• PostgreSQL 9.4
  • option --analyze-in-stages added (commit c92c3d50)
• PostgreSQL 9.3
  • multiple -t/--table arguments supported (commit f3af5344)
• PostgreSQL 9.2
  • --maintenance-db option added (commit 68281e00)
• PostgreSQL 9.0
  • option --analyze-only added (commit 3ccb97b2)
• PostgreSQL 8.4
  • option --freeze added (commit 36a9cf38)
  • option -w/--no-password added (commit 9de59fd1)
• PostgreSQL 8.3
  • Ctrl-C interrupt handler added (commit 6e09df9d)
• PostgreSQL 7.4
  • converted from a shell script into a C program (commit f374a9da)
• PostgreSQL 7.3
  • support for identifiers containing spaces added (commit 5804a7ce)
• PostgreSQL 7.0
  • added (commit 240e4c98)

Examples

$ vacuumdb --all --analyze-in-stages
vacuumdb: processing database "contentdb": Generating minimal optimizer statistics (1 target)
vacuumdb: processing database "postgres": Generating minimal optimizer statistics (1 target)
vacuumdb: processing database "template1": Generating minimal optimizer statistics (1 target)
vacuumdb: processing database "contentdb": Generating medium optimizer statistics (10 targets)
vacuumdb: processing database "postgres": Generating medium optimizer statistics (10 targets)
vacuumdb: processing database "template1": Generating medium optimizer statistics (10 targets)
vacuumdb: processing database "contentdb": Generating default (full) optimizer statistics
vacuumdb: processing database "postgres": Generating default (full) optimizer statistics
vacuumdb: processing database "template1": Generating default (full) optimizer statistics

References

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See also