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Allow ALTER FUNCTION to change a function's strictness, volatility, and

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whether or not it is a security definer. Changing a function's strictness
is required by SQL2003, and the other capabilities make sense. Also, allow
an optional RESTRICT noise word to be specified, for SQL conformance.

Some trivial regression tests added and the documentation has been
updated.
This commit is contained in:
Neil Conway
2005-03-14 00:19:37 +00:00
parent 41e2a80f57
commit c069655441
12 changed files with 384 additions and 81 deletions
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16
src/backend/nodes/copyfuncs.c
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@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.297 2005/03/10 23:21:21 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.298 2005/03/14 00:19:36 neilc Exp $
*
*-------------------------------------------------------------------------
*/
@ -1892,6 +1892,17 @@ _copyFunctionParameter(FunctionParameter *from)
return newnode;
}
static AlterFunctionStmt *
_copyAlterFunctionStmt(AlterFunctionStmt *from)
{
AlterFunctionStmt *newnode = makeNode(AlterFunctionStmt);
COPY_NODE_FIELD(func);
COPY_NODE_FIELD(actions);
return newnode;
}
static RemoveAggrStmt *
_copyRemoveAggrStmt(RemoveAggrStmt *from)
{
@ -2882,6 +2893,9 @@ copyObject(void *from)
case T_FunctionParameter:
retval = _copyFunctionParameter(from);
break;
case T_AlterFunctionStmt:
retval = _copyAlterFunctionStmt(from);
break;
case T_RemoveAggrStmt:
retval = _copyRemoveAggrStmt(from);
break;