database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-14 18:42:34 +03:00
Code Activity

Change CREATE TABLE so that column default expressions coming from different

Browse Source 
inheritance parent tables are compared using equal(), instead of doing
strcmp() on the nodeToString representation.  The old implementation was
always a tad cheesy, and it finally fails completely as of 8.4, now that the
node tree might contain syntax location information.  equal() knows it's
supposed to ignore those fields, but strcmp() hardly can.  Per recent
report from Scott Ribe.
This commit is contained in:
Tom Lane
2009-10-06 00:55:26 +00:00
parent 051168b6ac
commit e0c433c4a3
8 changed files with 50 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/backend/commands/tablecmds.c
View File

@ -8,7 +8,7 @@
*
*
* 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 $
*
*-------------------------------------------------------------------------
*/
@ -493,7 +493,7 @@ DefineRelation(CreateStmt *stmt, char relkind)
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);
@ -1168,8 +1168,8 @@ MergeAttributes(List *schema, List *supers, bool istemp,
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
@ -1353,7 +1353,7 @@ MergeAttributes(List *schema, List *supers, bool istemp,
*/
if (attribute->atthasdef)
{
char *this_default = NULL;
Node *this_default = NULL;
AttrDefault *attrdef;
int i;
@ -1364,7 +1364,7 @@ MergeAttributes(List *schema, List *supers, bool istemp,
{
if (attrdef[i].adnum == parent_attno)
{
this_default = attrdef[i].adbin;
this_default = stringToNode(attrdef[i].adbin);
break;
}
}
@ -1382,10 +1382,10 @@ MergeAttributes(List *schema, List *supers, bool istemp,
*/
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;
}
}
@ -1524,7 +1524,7 @@ MergeAttributes(List *schema, List *supers, bool istemp,
{
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",