*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.300 2009/10/05 19:24:37 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.301 2009/10/06 00:55:26 tgl Exp $
*
*-------------------------------------------------------------------------
*/
cooked->contype = CONSTR_DEFAULT;
cooked->name = NULL;
cooked->attnum = attnum;
- cooked->expr = stringToNode(colDef->cooked_default);
+ cooked->expr = colDef->cooked_default;
cooked->is_local = true; /* not used for defaults */
cooked->inhcount = 0; /* ditto */
cookedDefaults = lappend(cookedDefaults, cooked);
List *constraints = NIL;
int parentsWithOids = 0;
bool have_bogus_defaults = false;
- char *bogus_marker = "Bogus!"; /* marks conflicting defaults */
int child_attno;
+ static Node bogus_marker = { 0 }; /* marks conflicting defaults */
/*
* Check for and reject tables with too many columns. We perform this
*/
if (attribute->atthasdef)
{
- char *this_default = NULL;
+ Node *this_default = NULL;
AttrDefault *attrdef;
int i;
{
if (attrdef[i].adnum == parent_attno)
{
- this_default = attrdef[i].adbin;
+ this_default = stringToNode(attrdef[i].adbin);
break;
}
}
*/
Assert(def->raw_default == NULL);
if (def->cooked_default == NULL)
- def->cooked_default = pstrdup(this_default);
- else if (strcmp(def->cooked_default, this_default) != 0)
+ def->cooked_default = this_default;
+ else if (!equal(def->cooked_default, this_default))
{
- def->cooked_default = bogus_marker;
+ def->cooked_default = &bogus_marker;
have_bogus_defaults = true;
}
}
{
ColumnDef *def = lfirst(entry);
- if (def->cooked_default == bogus_marker)
+ if (def->cooked_default == &bogus_marker)
ereport(ERROR,
(errcode(ERRCODE_INVALID_COLUMN_DEFINITION),
errmsg("column \"%s\" inherits conflicting default values",
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.439 2009/10/05 19:24:38 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.440 2009/10/06 00:55:26 tgl Exp $
*
*-------------------------------------------------------------------------
*/
COPY_SCALAR_FIELD(is_local);
COPY_SCALAR_FIELD(is_not_null);
COPY_NODE_FIELD(raw_default);
- COPY_STRING_FIELD(cooked_default);
+ COPY_NODE_FIELD(cooked_default);
COPY_NODE_FIELD(constraints);
return newnode;
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.362 2009/10/05 19:24:38 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.363 2009/10/06 00:55:26 tgl Exp $
*
*-------------------------------------------------------------------------
*/
COMPARE_SCALAR_FIELD(is_local);
COMPARE_SCALAR_FIELD(is_not_null);
COMPARE_NODE_FIELD(raw_default);
- COMPARE_STRING_FIELD(cooked_default);
+ COMPARE_NODE_FIELD(cooked_default);
COMPARE_NODE_FIELD(constraints);
return true;
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.364 2009/09/17 20:49:28 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.365 2009/10/06 00:55:26 tgl Exp $
*
* NOTES
* Every node type that can appear in stored rules' parsetrees *must*
WRITE_BOOL_FIELD(is_local);
WRITE_BOOL_FIELD(is_not_null);
WRITE_NODE_FIELD(raw_default);
- WRITE_STRING_FIELD(cooked_default);
+ WRITE_NODE_FIELD(cooked_default);
WRITE_NODE_FIELD(constraints);
}
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/backend/parser/parse_utilcmd.c,v 2.25 2009/07/30 02:45:37 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/parser/parse_utilcmd.c,v 2.26 2009/10/06 00:55:26 tgl Exp $
*
*-------------------------------------------------------------------------
*/
*/
if (attribute->atthasdef && including_defaults)
{
- char *this_default = NULL;
+ Node *this_default = NULL;
AttrDefault *attrdef;
int i;
{
if (attrdef[i].adnum == parent_attno)
{
- this_default = attrdef[i].adbin;
+ this_default = stringToNode(attrdef[i].adbin);
break;
}
}
* but it can't; so default is ready to apply to child.
*/
- def->cooked_default = pstrdup(this_default);
+ def->cooked_default = this_default;
}
}
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.403 2009/10/05 19:24:48 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.404 2009/10/06 00:55:26 tgl Exp $
*
*-------------------------------------------------------------------------
*/
*
* If the column has a default value, we may have the value expression
* in either "raw" form (an untransformed parse tree) or "cooked" form
- * (the nodeToString representation of an executable expression tree),
- * depending on how this ColumnDef node was created (by parsing, or by
- * inheritance from an existing relation). We should never have both
- * in the same node!
+ * (a post-parse-analysis, executable expression tree), depending on
+ * how this ColumnDef node was created (by parsing, or by inheritance
+ * from an existing relation). We should never have both in the same node!
*
* The constraints list may contain a CONSTR_DEFAULT item in a raw
* parsetree produced by gram.y, but transformCreateStmt will remove
bool is_local; /* column has local (non-inherited) def'n */
bool is_not_null; /* NOT NULL constraint specified? */
Node *raw_default; /* default value (untransformed parse tree) */
- char *cooked_default; /* nodeToString representation */
+ Node *cooked_default; /* default value (transformed expr tree) */
List *constraints; /* other constraints on column */
} ColumnDef;
bar2 | 4 | 4
(8 rows)
+/* Test multiple inheritance of column defaults */
+CREATE TABLE firstparent (tomorrow date default now()::date + 1);
+CREATE TABLE secondparent (tomorrow date default now() :: date + 1);
+CREATE TABLE jointchild () INHERITS (firstparent, secondparent); -- ok
+NOTICE: merging multiple inherited definitions of column "tomorrow"
+CREATE TABLE thirdparent (tomorrow date default now()::date - 1);
+CREATE TABLE otherchild () INHERITS (firstparent, thirdparent); -- not ok
+NOTICE: merging multiple inherited definitions of column "tomorrow"
+ERROR: column "tomorrow" inherits conflicting default values
+HINT: To resolve the conflict, specify a default explicitly.
+CREATE TABLE otherchild (tomorrow date default now())
+ INHERITS (firstparent, thirdparent); -- ok, child resolves ambiguous default
+NOTICE: merging multiple inherited definitions of column "tomorrow"
+NOTICE: merging column "tomorrow" with inherited definition
+DROP TABLE firstparent, secondparent, jointchild, thirdparent, otherchild;
/* Test inheritance of structure (LIKE) */
CREATE TABLE inhx (xx text DEFAULT 'text');
/*
SELECT relname, bar.* FROM bar, pg_class where bar.tableoid = pg_class.oid
order by 1,2;
+/* Test multiple inheritance of column defaults */
+
+CREATE TABLE firstparent (tomorrow date default now()::date + 1);
+CREATE TABLE secondparent (tomorrow date default now() :: date + 1);
+CREATE TABLE jointchild () INHERITS (firstparent, secondparent); -- ok
+CREATE TABLE thirdparent (tomorrow date default now()::date - 1);
+CREATE TABLE otherchild () INHERITS (firstparent, thirdparent); -- not ok
+CREATE TABLE otherchild (tomorrow date default now())
+ INHERITS (firstparent, thirdparent); -- ok, child resolves ambiguous default
+
+DROP TABLE firstparent, secondparent, jointchild, thirdparent, otherchild;
/* Test inheritance of structure (LIKE) */
CREATE TABLE inhx (xx text DEFAULT 'text');
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