Function assert_equals_base

gpcontrib/orafce/plunit.c:222–253

static bool
assert_equals_base(FunctionCallInfo fcinfo)
{
	Datum 		value1 = PG_GETARG_DATUM(0);
	Datum		value2 = PG_GETARG_DATUM(1);
	Oid		*ptr;

	ptr = (Oid *) fcinfo->flinfo->fn_extra;
	if (ptr == NULL)
	{
		Oid	  valtype = get_fn_expr_argtype(fcinfo->flinfo, 0);
		Oid eqopfcid;

		if (!OidIsValid(valtype))
			elog(ERROR, "could not determine data type of input");

		eqopfcid = equality_oper_funcid(valtype);

		if (!OidIsValid(eqopfcid))
			ereport(ERROR,
				(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
				errmsg("unknown equal operand for datatype")));

		/* First time calling for current query: allocate storage */
		fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
										    sizeof(Oid));
		ptr = (Oid *) fcinfo->flinfo->fn_extra;
		*ptr = eqopfcid;
	}

	return DatumGetBool(OidFunctionCall2Coll(*ptr, DEFAULT_COLLATION_OID, value1, value2));
}

Datum
plunit_assert_equals(PG_FUNCTION_ARGS)