Commit2afa73a

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Clarify NULLIF example

found by "Vesa-Matti J Kari" <vmkari@cc.helsinki.fi>

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Lines changed: 4 additions & 3 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.482 2009/06/17 21:58:49 tgl Exp $ -->`
	`1`	`+<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.483 2009/07/22 18:07:26 petere Exp $ -->`
`2`	`2`
`3`	`3`	`<chapter id="functions">`
`4`	`4`	`<title>Functions and Operators</title>`
`@@ -9193,8 +9193,9 @@ SELECT NULLIF(value, '(none)') ...`
`9193`	`9193`	`</programlisting>`
`9194`	`9194`	`</para>`
`9195`	`9195`	`<para>`
`9196`		`- If <replaceable>value1</replaceable> is <literal>(none)</>, return a null,`
`9197`		`- otherwise return <replaceable>value1</replaceable>.`
	`9196`	`+ In this example, if <literal>value</literal> is <literal>(none)</>,`
	`9197`	`+ null is returned, otherwise the value of <literal>value</literal>`
	`9198`	`+ is returned.`
`9198`	`9199`	`</para>`
`9199`	`9200`
`9200`	`9201`	`</sect2>`

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