Commit5ea9322

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Cast functions can be immutable or stable.

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Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-<!-- $Header: /cvsroot/pgsql/doc/src/sgml/ref/create_cast.sgml,v 1.3 2002/09/01 02:37:02 tgl Exp $ -->`
	`1`	`+<!-- $Header: /cvsroot/pgsql/doc/src/sgml/ref/create_cast.sgml,v 1.4 2002/09/15 13:04:16 petere Exp $ -->`
`2`	`2`
`3`	`3`	`<refentry id="SQL-CREATECAST">`
`4`	`4`	`<refmeta>`
`@@ -117,7 +117,7 @@ INSERT INTO foo(f1) VALUES(42);`
`117`	`117`	`be schema-qualified. If it is not, the function will be looked`
`118`	`118`	`up in the path. The argument type must be identical to the`
`119`	`119`	`source type, the result data type must match the target type of`
`120`		`- the cast. Cast functions must be marked immutable.`
	`120`	`+ the cast. Cast functions must be marked immutable or stable.`
`121`	`121`	`</para>`
`122`	`122`	`</listitem>`
`123`	`123`	`</varlistentry>`

Lines changed: 3 additions & 3 deletions

Original file line number	Diff line number	Diff line change
`@@ -9,7 +9,7 @@`
`9`	`9`	`*`
`10`	`10`	`*`
`11`	`11`	`* IDENTIFICATION`
`12`		`- * $Header: /cvsroot/pgsql/src/backend/commands/functioncmds.c,v 1.19 2002/09/04 20:31:15 momjian Exp $`
	`12`	`+ * $Header: /cvsroot/pgsql/src/backend/commands/functioncmds.c,v 1.20 2002/09/15 13:04:16 petere Exp $`
`13`	`13`	`*`
`14`	`14`	`* DESCRIPTION`
`15`	`15`	`* These routines take the parse tree and pick out the`
`@@ -676,8 +676,8 @@ CreateCast(CreateCastStmt *stmt)`
`676`	`676`	`elog(ERROR,"argument of cast function must match source data type");`
`677`	`677`	`if (procstruct->prorettype!=targettypeid)`
`678`	`678`	`elog(ERROR,"return data type of cast function must match target data type");`
`679`		`-if (procstruct->provolatile!=PROVOLATILE_IMMUTABLE)`
`680`		`-elog(ERROR,"cast function must beimmutable");`
	`679`	`+if (procstruct->provolatile==PROVOLATILE_VOLATILE)`
	`680`	`+elog(ERROR,"cast function mustnotbevolatile");`
`681`	`681`	`if (procstruct->proisagg)`
`682`	`682`	`elog(ERROR,"cast function must not be an aggregate function");`
`683`	`683`	`if (procstruct->proretset)`

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