database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-07 00:36:50 +03:00
Code Activity

Fix array coercion expressions to ensure that the correct volatility is

Browse Source 
seen by code inspecting the expression.  The best way to do this seems
to be to drop the original representation as a function invocation, and
instead make a special expression node type that represents applying
the element-type coercion function to each array element.  In this way
the element function is exposed and will be checked for volatility.
Per report from Guillaume Smet.
This commit is contained in:
Tom Lane
2007-03-27 23:21:12 +00:00
parent 87564ffc6a
commit bf94076348
24 changed files with 564 additions and 440 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
src/backend/nodes/copyfuncs.c
View File

@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.371 2007/03/17 00:11:03 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.372 2007/03/27 23:21:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1020,6 +1020,24 @@ _copyRelabelType(RelabelType *from)
return newnode;
}
/*
* _copyArrayCoerceExpr
*/
static ArrayCoerceExpr *
_copyArrayCoerceExpr(ArrayCoerceExpr *from)
{
ArrayCoerceExpr *newnode = makeNode(ArrayCoerceExpr);
COPY_NODE_FIELD(arg);
COPY_SCALAR_FIELD(elemfuncid);
COPY_SCALAR_FIELD(resulttype);
COPY_SCALAR_FIELD(resulttypmod);
COPY_SCALAR_FIELD(isExplicit);
COPY_SCALAR_FIELD(coerceformat);
return newnode;
}
/*
* _copyConvertRowtypeExpr
*/
@ -3067,6 +3085,9 @@ copyObject(void *from)
case T_RelabelType:
retval = _copyRelabelType(from);
break;
case T_ArrayCoerceExpr:
retval = _copyArrayCoerceExpr(from);
break;
case T_ConvertRowtypeExpr:
retval = _copyConvertRowtypeExpr(from);
break;