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Doc: clarify description of CREATE/ALTER FUNCTION ... SET FROM CURRENT.

Per discussion with David Johnston.

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Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -225,8 +225,9 @@ ALTER FUNCTION <replaceable>name</replaceable> ( [ [ <replaceable class="paramet`
`225`	`225`	`setting is removed, so that the function executes with the value`
`226`	`226`	`present in its environment. Use <literal>RESET`
`227`	`227`	`ALL</literal> to clear all function-local settings.`
`228`		`- <literal>SET FROM CURRENT</> saves the session's current value of`
`229`		`- the parameter as the value to be applied when the function is entered.`
	`228`	`+ <literal>SET FROM CURRENT</> saves the value of the parameter that`
	`229`	`+ is current when <command>ALTER FUNCTION</> is executed as the value`
	`230`	`+ to be applied when the function is entered.`
`230`	`231`	`</para>`
`231`	`232`
`232`	`233`	`<para>`

Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -399,8 +399,9 @@ CREATE [ OR REPLACE ] FUNCTION`
`399`	`399`	`The <literal>SET</> clause causes the specified configuration`
`400`	`400`	`parameter to be set to the specified value when the function is`
`401`	`401`	`entered, and then restored to its prior value when the function exits.`
`402`		`- <literal>SET FROM CURRENT</> saves the session's current value of`
`403`		`- the parameter as the value to be applied when the function is entered.`
	`402`	`+ <literal>SET FROM CURRENT</> saves the value of the parameter that`
	`403`	`+ is current when <command>CREATE FUNCTION</> is executed as the value`
	`404`	`+ to be applied when the function is entered.`
`404`	`405`	`</para>`
`405`	`406`
`406`	`407`	`<para>`

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