diff options
Diffstat (limited to 'src/backend/executor/execQual.c')
| -rw-r--r-- | src/backend/executor/execQual.c | 46 |
1 files changed, 41 insertions, 5 deletions
diff --git a/src/backend/executor/execQual.c b/src/backend/executor/execQual.c index 5718983ca10..1612a2d9ea2 100644 --- a/src/backend/executor/execQual.c +++ b/src/backend/executor/execQual.c @@ -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); /*---------- @@ -1552,6 +1555,23 @@ 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 * * Test the constraint against the data provided. If the data fits @@ -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)); |