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Document that btrim()'s second parameter is optional, and defaults to spaces.

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This commit is contained in:
Bruce Momjian 2004-12-02 17:14:54 +00:00
parent 40b6d68951
commit 91cf5ef550
1 changed files with 5 additions and 4 deletions
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doc/src/sgml/func.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.225 2004/12/01 19:32:12 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.226 2004/12/02 17:14:54 momjian Exp $
PostgreSQL documentation
-->
@ -1070,12 +1070,13 @@ PostgreSQL documentation
</row>
<row>
<entry><literal><function>btrim</function>(<parameter>string</parameter> <type>text</type>, <parameter>characters</parameter> <type>text</type>)</literal></entry>
<entry><literal><function>btrim</function>(<parameter>string</parameter> <type>text</type>
<optional>, <parameter>characters</parameter> <type>text</type></optional>)</literal></entry>
<entry><type>text</type></entry>
<entry>
Remove the longest string consisting only of characters
in <parameter>characters</parameter> from the start and end of
<parameter>string</parameter>.
in <parameter>characters</parameter> (or spaces if not supplied)
from the start and end of <parameter>string</parameter>.
</entry>
<entry><literal>btrim('xyxtrimyyx', 'xy')</literal></entry>
<entry><literal>trim</literal></entry>