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Doc: fix backwards description of visibility map's all-frozen data.

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Thinko in commit a892234f8.

Vik Fearing

Discussion: https://postgr.es/m/b6aaa23d-e26f-6404-a30d-e89431492d5d@2ndquadrant.com
This commit is contained in:
Tom Lane
2017-07-09 12:51:15 -04:00
parent 3381898f98
commit 485c515d01
1 changed files with 1 additions and 1 deletions
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doc/src/sgml/storage.sgml
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@ -630,7 +630,7 @@ can be used to examine the information stored in free space maps.
Each heap relation has a Visibility Map Each heap relation has a Visibility Map
(VM) to keep track of which pages contain only tuples that are known to be (VM) to keep track of which pages contain only tuples that are known to be
visible to all active transactions; it also keeps track of which pages contain visible to all active transactions; it also keeps track of which pages contain
only unfrozen tuples. It's stored only frozen tuples. It's stored
alongside the main relation data in a separate relation fork, named after the alongside the main relation data in a separate relation fork, named after the
filenode number of the relation, plus a <literal>_vm</> suffix. For example, filenode number of the relation, plus a <literal>_vm</> suffix. For example,
if the filenode of a relation is 12345, the VM is stored in a file called if the filenode of a relation is 12345, the VM is stored in a file called