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Mention that VACUUM FREEZE also effectively zeroes the table freeze age.

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Maciek Sakrejda, reviewed by Amit Kapila
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Robert Haas
2014-01-14 14:48:57 -05:00
parent 246a9a8d0c
commit b682709451
1 changed files with 2 additions and 1 deletions
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doc/src/sgml/ref/vacuum.sgml
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@ -101,7 +101,8 @@ VACUUM [ FULL ] [ FREEZE ] [ VERBOSE ] ANALYZE [ <replaceable class="PARAMETER">
Selects aggressive <quote>freezing</quote> of tuples. Selects aggressive <quote>freezing</quote> of tuples.
Specifying <literal>FREEZE</literal> is equivalent to performing Specifying <literal>FREEZE</literal> is equivalent to performing
<command>VACUUM</command> with the <command>VACUUM</command> with the
<xref linkend="guc-vacuum-freeze-min-age"> parameter <xref linkend="guc-vacuum-freeze-min-age"> and
<xref linkend="guc-vacuum-freeze-table-age"> parameters
set to zero. Aggressive freezing is always performed when the set to zero. Aggressive freezing is always performed when the
table is rewritten, so this option is redundant when <literal>FULL</> table is rewritten, so this option is redundant when <literal>FULL</>
is specified. is specified.