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doc: mention that to_char() values are rounded

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Reported-by: barsikdacat@gmail.com

Diagnosed-by: Laurenz Albe

Discussion: https://postgr.es/m/168991536429.626.9957835774751337210@wrigleys.postgresql.org

Author: Laurenz Albe

Backpatch-through: 11
This commit is contained in:
Bruce Momjian 2023-09-06 16:52:24 -04:00
parent 77644adc30
commit 46517f63db
1 changed files with 8 additions and 0 deletions
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8
doc/src/sgml/func.sgml
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@ -7899,6 +7899,14 @@ SELECT regexp_match('abc01234xyz', '(?:(.*?)(\d+)(.*)){1,1}');
</para>
</listitem>
<listitem>
<para>
If the format provides fewer fractional digits than the number being
formatted, <function>to_char()</function> will round the number to
the specified number of fractional digits.
</para>
</listitem>
<listitem>
<para>
The pattern characters <literal>S</literal>, <literal>L</literal>, <literal>D</literal>,