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Add DOMAIN check constraints.

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Rod Taylor
This commit is contained in:
Bruce Momjian
2002-11-15 02:50:21 +00:00
parent 2986aa6a66
commit 6b603e67dc
29 changed files with 641 additions and 147 deletions
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46
src/backend/executor/execQual.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execQual.c,v 1.108 2002/09/04 20:31:17 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execQual.c,v 1.109 2002/11/15 02:50:06 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -72,6 +72,9 @@ static Datum ExecEvalBooleanTest(BooleanTest *btest, ExprContext *econtext,
static Datum ExecEvalConstraintTest(ConstraintTest *constraint,
ExprContext *econtext,
bool *isNull, ExprDoneCond *isDone);
static Datum ExecEvalConstraintTestValue(ConstraintTestValue *conVal,
ExprContext *econtext,
bool *isNull, ExprDoneCond *isDone);
/*----------
@ -1551,6 +1554,23 @@ ExecEvalBooleanTest(BooleanTest *btest,
}
}
/*
* ExecEvalConstraintTestValue
*
* Return the value stored by constraintTest.
*/
static Datum
ExecEvalConstraintTestValue(ConstraintTestValue *conVal, ExprContext *econtext,
bool *isNull, ExprDoneCond *isDone)
{
/*
* If the Datum hasn't been set, then it's ExecEvalConstraintTest
* hasn't been called.
*/
*isNull = econtext->domainValue_isNull;
return econtext->domainValue_datum;
}
/*
* ExecEvalConstraintTest
*
@ -1571,11 +1591,22 @@ ExecEvalConstraintTest(ConstraintTest *constraint, ExprContext *econtext,
case CONSTR_TEST_NOTNULL:
if (*isNull)
elog(ERROR, "Domain %s does not allow NULL values",
constraint->name);
constraint->domname);
break;
case CONSTR_TEST_CHECK:
/* TODO: Add CHECK Constraints to domains */
elog(ERROR, "Domain CHECK Constraints not yet implemented");
{
Datum conResult;
/* Var with attnum == UnassignedAttrNum uses the result */
econtext->domainValue_datum = result;
econtext->domainValue_isNull = *isNull;
conResult = ExecEvalExpr(constraint->check_expr, econtext, isNull, isDone);
if (!DatumGetBool(conResult))
elog(ERROR, "Domain %s constraint %s failed",
constraint->name, constraint->domname);
}
break;
default:
elog(ERROR, "ExecEvalConstraintTest: Constraint type unknown");
@ -1777,7 +1808,12 @@ ExecEvalExpr(Node *expression,
isNull,
isDone);
break;
case T_ConstraintTestValue:
retDatum = ExecEvalConstraintTestValue((ConstraintTestValue *) expression,
econtext,
isNull,
isDone);
break;
default:
elog(ERROR, "ExecEvalExpr: unknown expression type %d",
nodeTag(expression));