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Fix for DEFAULT ''.

This commit is contained in:
Bruce Momjian 1999-05-22 04:12:29 +00:00
parent 9710995fc9
commit a8d2820e6d
8 changed files with 40 additions and 45 deletions
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23
src/backend/catalog/heap.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/catalog/heap.c,v 1.83 1999/05/21 18:33:12 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/catalog/heap.c,v 1.84 1999/05/22 04:12:24 momjian Exp $
*
*
* INTERFACE ROUTINES
@ -1538,26 +1538,11 @@ start:
if (type != atp->atttypid)
{
/*
* Though these types are binary compatible, bpchar has a fixed
* length on the disk, requiring non-bpchar types to be padded
* before storage in the default table. bjm 1999/05/18
*/
if (1==0 && atp->atttypid == BPCHAROID &&
(type == TEXTOID || type == BPCHAROID || type == UNKNOWNOID))
{
FuncCall *n = makeNode(FuncCall);
n->funcname = typeidTypeName(atp->atttypid);
n->args = lcons((Node *)expr, NIL);
expr = transformExpr(NULL, (Node *) n, EXPR_COLUMN_FIRST);
}
else if (IS_BINARY_COMPATIBLE(type, atp->atttypid))
if (IS_BINARY_COMPATIBLE(type, atp->atttypid))
; /* use without change */
else if (can_coerce_type(1, &(type), &(atp->atttypid)))
expr = coerce_type(NULL, (Node *)expr, type, atp->atttypid);
expr = coerce_type(NULL, (Node *)expr, type, atp->atttypid,
atp->atttypmod);
else if (IsA(expr, Const))
{
if (*cast != 0)

18
src/backend/parser/parse_coerce.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_coerce.c,v 2.14 1999/05/22 02:55:57 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_coerce.c,v 2.15 1999/05/22 04:12:26 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -35,7 +35,8 @@ static Oid PreferredType(CATEGORY category, Oid type);
* Convert a function argument to a different type.
*/
Node *
coerce_type(ParseState *pstate, Node *node, Oid inputTypeId, Oid targetTypeId)
coerce_type(ParseState *pstate, Node *node, Oid inputTypeId, Oid targetTypeId,
int32 atttypmod)
{
Node *result = NULL;
Oid infunc;
@ -82,11 +83,16 @@ coerce_type(ParseState *pstate, Node *node, Oid inputTypeId, Oid targetTypeId)
con->consttype = targetTypeId;
con->constlen = typeLen(typeidType(targetTypeId));
/* use "-1" for varchar() type */
/*
* Use "-1" for varchar() type.
* For char(), we need to pad out the type with the proper
* number of spaces. This was a major problem for
* DEFAULT string constants to char() types.
*/
con->constvalue = (Datum) fmgr(infunc,
val,
typeidTypElem(targetTypeId),
-1);
(targetTypeId != BPCHAROID) ? -1 : atttypmod);
con->constisnull = false;
con->constbyval = typeByVal(typeidType(targetTypeId));
con->constisset = false;
@ -100,7 +106,7 @@ coerce_type(ParseState *pstate, Node *node, Oid inputTypeId, Oid targetTypeId)
result = node;
return result;
} /* coerce_type() */
}
/* can_coerce_type()
@ -178,7 +184,7 @@ can_coerce_type(int nargs, Oid *input_typeids, Oid *func_typeids)
}
return true;
} /* can_coerce_type() */
}
/* TypeCategory()

8
src/backend/parser/parse_expr.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.46 1999/05/18 23:40:05 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.47 1999/05/22 04:12:26 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -417,7 +417,8 @@ transformExpr(ParseState *pstate, Node *expr, int precedence)
}
else if (can_coerce_type(1, &c->casetype, &ptype))
{
c->defresult = coerce_type(pstate, c->defresult, c->casetype, ptype);
c->defresult = coerce_type(pstate, c->defresult,
c->casetype, ptype, -1);
c->casetype = ptype;
}
else
@ -439,7 +440,8 @@ transformExpr(ParseState *pstate, Node *expr, int precedence)
{
if (can_coerce_type(1, &wtype, &ptype))
{
w->result = coerce_type(pstate, w->result, wtype, ptype);
w->result = coerce_type(pstate, w->result, wtype,
ptype, -1);
}
else
{

9
src/backend/parser/parse_func.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.44 1999/05/17 17:03:33 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.45 1999/05/22 04:12:27 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -352,7 +352,6 @@ ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
}
else
{
/*
* Parsing aggregates.
*/
@ -361,7 +360,6 @@ ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
int ncandidates;
CandidateList candidates;
/*
* the aggregate COUNT is a special case, ignore its base
* type. Treat it as zero
@ -392,7 +390,8 @@ ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
type = agg_select_candidate(basetype, candidates);
if (OidIsValid(type))
{
lfirst(fargs) = coerce_type(pstate, lfirst(fargs), basetype, type);
lfirst(fargs) = coerce_type(pstate, lfirst(fargs),
basetype, type, -1);
basetype = type;
return (Node *) ParseAgg(pstate, funcname, basetype,
@ -1316,7 +1315,7 @@ make_arguments(ParseState *pstate,
lfirst(current_fargs) = coerce_type(pstate,
lfirst(current_fargs),
input_typeids[i],
function_typeids[i]);
function_typeids[i], -1);
}
}
}

6
src/backend/parser/parse_node.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_node.c,v 1.25 1999/05/10 00:45:28 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_node.c,v 1.26 1999/05/22 04:12:27 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -75,9 +75,7 @@ make_operand(char *opname,
/* must coerce? */
if (true_typeId != orig_typeId)
{
result = coerce_type(NULL, tree, orig_typeId, true_typeId);
}
result = coerce_type(NULL, tree, orig_typeId, true_typeId, -1);
}
/* otherwise, this is a NULL value */
else

6
src/backend/parser/parse_relation.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.20 1999/05/17 17:03:34 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.21 1999/05/22 04:12:28 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -445,7 +445,9 @@ checkTargetTypes(ParseState *pstate, char *target_colname,
{
if (can_coerce_type(1, &attrtype_id, &attrtype_target))
{
Node *expr = coerce_type(pstate, expr, attrtype_id, attrtype_target);
Node *expr = coerce_type(pstate, expr, attrtype_id,
attrtype_target,
get_atttypmod(pstate->p_target_relation->rd_id, resdomno_target));
elog(ERROR, "Type %s(%d) can be coerced to match target column %s(%d)",
colname, get_atttypmod(rte->relid, resdomno_id),

10
src/backend/parser/parse_target.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_target.c,v 1.37 1999/05/17 17:03:35 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_target.c,v 1.38 1999/05/22 04:12:28 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -121,7 +121,9 @@ MakeTargetEntryIdent(ParseState *pstate,
{
if (can_coerce_type(1, &attrtype_id, &attrtype_target))
{
expr = coerce_type(pstate, node, attrtype_id, attrtype_target);
expr = coerce_type(pstate, node, attrtype_id,
attrtype_target,
get_atttypmod(pstate->p_target_relation->rd_id, resdomno_target));
expr = transformExpr(pstate, expr, EXPR_COLUMN_FIRST);
tent = MakeTargetEntryExpr(pstate, *resname, expr, false, false);
expr = tent->expr;
@ -666,7 +668,7 @@ CoerceTargetExpr(ParseState *pstate,
{
if (can_coerce_type(1, &type_id, &attrtype))
{
expr = coerce_type(pstate, expr, type_id, attrtype);
expr = coerce_type(pstate, expr, type_id, attrtype, -1);
}
#ifndef DISABLE_STRING_HACKS
@ -683,7 +685,7 @@ CoerceTargetExpr(ParseState *pstate,
{
}
else if (can_coerce_type(1, &type_id, &text_id))
expr = coerce_type(pstate, expr, type_id, text_id);
expr = coerce_type(pstate, expr, type_id, text_id, -1);
else
expr = NULL;
}

5
src/include/parser/parse_coerce.h
View File

@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: parse_coerce.h,v 1.9 1999/03/10 05:05:58 tgl Exp $
* $Id: parse_coerce.h,v 1.10 1999/05/22 04:12:29 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -121,6 +121,7 @@ extern bool IsPreferredType(CATEGORY category, Oid type);
extern CATEGORY TypeCategory(Oid type);
extern bool can_coerce_type(int nargs, Oid *input_typeids, Oid *func_typeids);
extern Node *coerce_type(ParseState *pstate, Node *node, Oid inputTypeId, Oid targetTypeId);
extern Node *coerce_type(ParseState *pstate, Node *node, Oid inputTypeId,
Oid targetTypeId, int32 atttypmod);
#endif /* PARSE_COERCE_H */