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doc: 1-byte varlena headers can be used for user PLAIN storage

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This also updates some C comments.

Reported-by: suchithjn22@gmail.com

Discussion: https://postgr.es/m/167336599095.2667301.15497893107226841625@wrigleys.postgresql.org

Author: Laurenz Albe (doc patch)

Backpatch-through: 11
This commit is contained in:
Bruce Momjian
2023-10-31 09:10:35 -04:00
parent c5988e69fe
commit 57354242c0
3 changed files with 13 additions and 5 deletions
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4
doc/src/sgml/storage.sgml
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@ -456,9 +456,7 @@ for storing <acronym>TOAST</acronym>-able columns on disk:
<listitem>
<para>
<literal>PLAIN</literal> prevents either compression or
out-of-line storage; furthermore it disables use of single-byte headers
for varlena types.
This is the only possible strategy for
out-of-line storage. This is the only possible strategy for
columns of non-<acronym>TOAST</acronym>-able data types.
</para>
</listitem>