8000 docs: document TRIM "comma" syntax · postgres/postgres@5368a23 · GitHub
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docs: document TRIM "comma" syntax
This syntax is supported by the parser, but is non-standard. _Not_ backpatched to 9.3 in case we change our minds.
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‎doc/src/sgml/func.sgml

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<entry><literal>Tom</literal></entry>
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</row>
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<row>
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<entry>
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<indexterm>
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<primary>trim</primary>
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</indexterm>
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<literal><function>trim(<optional>leading | trailing
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| both</optional> <optional>from</optional>
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<parameter>string</parameter>
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<optional><parameter>, characters</parameter></optional>
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)</function></literal>
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</entry>
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<entry><type>text</type></entry>
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<entry>
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Non-standard version of <function>trim()</>
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</entry>
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<entry><literal>trim(both from 'xTomxx', 'x')</literal></entry>
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<entry><literal>Tom</literal></entry>
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</row>
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<row>
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<entry>
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<indexterm>

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