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Determine the set of constraints applied to a domain at executor

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startup, not in the parser; this allows ALTER DOMAIN to work correctly
with domain constraint operations stored in rules.  Rod Taylor;
code review by Tom Lane.
This commit is contained in:
Tom Lane
2003-02-03 21:15:45 +00:00
parent 464598b637
commit 3752e85bad
24 changed files with 524 additions and 339 deletions
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24
src/backend/commands/copy.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.188 2003/01/10 22:03:27 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/copy.c,v 1.189 2003/02/03 21:15:43 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -853,7 +853,7 @@ CopyFrom(Relation rel, List *attnumlist, bool binary, bool oids,
}
}
/* If it's a domain type, get info on domain constraints */
/* If it's a domain type, set up to check domain constraints */
if (get_typtype(attr[i]->atttypid) == 'd')
{
Param *prm;
@ -863,25 +863,23 @@ CopyFrom(Relation rel, List *attnumlist, bool binary, bool oids,
* Easiest way to do this is to use parse_coerce.c to set up
* an expression that checks the constraints. (At present,
* the expression might contain a length-coercion-function call
* and/or ConstraintTest nodes.) The bottom of the expression
* and/or CoerceToDomain nodes.) The bottom of the expression
* is a Param node so that we can fill in the actual datum during
* the data input loop.
*/
prm = makeNode(Param);
prm->paramkind = PARAM_EXEC;
prm->paramid = 0;
prm->paramtype = attr[i]->atttypid;
prm->paramtype = getBaseType(attr[i]->atttypid);
node = coerce_type_constraints((Node *) prm, attr[i]->atttypid,
COERCE_IMPLICIT_CAST);
node = coerce_to_domain((Node *) prm,
prm->paramtype,
attr[i]->atttypid,
COERCE_IMPLICIT_CAST);
/* check whether any constraints actually found */
if (node != (Node *) prm)
{
constraintexprs[i] = ExecPrepareExpr((Expr *) node,
estate);
hasConstraints = true;
}
constraintexprs[i] = ExecPrepareExpr((Expr *) node,
estate);
hasConstraints = true;
}
}