@Test
public void testUDF() throws Exception {
String ddl =
"CREATE VIRTUAL FUNCTION SourceFunc(flag boolean, msg varchar) RETURNS varchar "
+ "OPTIONS(CATEGORY 'misc', DETERMINISM 'DETERMINISTIC', "
+ "\"NULL-ON-NULL\" 'true', JAVA_CLASS 'foo', JAVA_METHOD 'bar', RANDOM 'any', UUID 'x')";
Schema s = helpParse(ddl, "model").getSchema();
FunctionMethod fm = s.getFunction("x");
assertNotNull(fm);
assertEquals("string", fm.getOutputParameter().getType());
assertEquals(FunctionMethod.PushDown.CAN_PUSHDOWN, fm.getPushdown());
assertEquals(2, fm.getInputParameterCount());
assertEquals("flag", fm.getInputParameters().get(0).getName());
assertEquals("boolean", fm.getInputParameters().get(0).getType());
assertEquals("msg", fm.getInputParameters().get(1).getName());
assertEquals("string", fm.getInputParameters().get(1).getType());
assertFalse(fm.getInputParameters().get(1).isVarArg());
assertEquals(FunctionMethod.Determinism.DETERMINISTIC, fm.getDeterminism());
assertEquals("misc", fm.getCategory());
assertEquals(true, fm.isNullOnNull());
assertEquals("foo", fm.getInvocationClass());
assertEquals("bar", fm.getInvocationMethod());
assertEquals("any", fm.getProperties().get("RANDOM"));
}
@Test(expected = MetadataException.class)
public void testInvalidProcedureBody() throws Exception {
String ddl = "CREATE FOREIGN PROCEDURE SourceFunc(flag boolean) RETURNS varchar AS SELECT 'a';";
Schema s = helpParse(ddl, "model").getSchema();
FunctionMethod fm = s.getFunction("z");
assertTrue(fm.getInputParameters().get(0).isVarArg());
}
@Test
public void testMixedCaseTypes() throws Exception {
String ddl = "CREATE FUNCTION SourceFunc(flag Boolean) RETURNS varchaR options (UUID 'z')";
Schema s = helpParse(ddl, "model").getSchema();
FunctionMethod fm = s.getFunction("z");
assertEquals("boolean", fm.getInputParameters().get(0).getType());
}
@Test
public void testVarArgs() throws Exception {
String ddl =
"CREATE FUNCTION SourceFunc(flag boolean) RETURNS varchar options (varargs 'true', UUID 'z')";
Schema s = helpParse(ddl, "model").getSchema();
FunctionMethod fm = s.getFunction("z");
assertTrue(fm.getInputParameters().get(0).isVarArg());
}
@Test
public void testPushdownFunctionNoArgs() throws Exception {
String ddl =
"CREATE FOREIGN FUNCTION SourceFunc() RETURNS integer OPTIONS (UUID 'hello world')";
Schema s = helpParse(ddl, "model").getSchema();
FunctionMethod fm = s.getFunction("hello world");
assertNotNull(fm);
assertEquals("integer", fm.getOutputParameter().getType());
assertEquals(FunctionMethod.PushDown.MUST_PUSHDOWN, fm.getPushdown());
}
@Test
public void testUDAggregate() throws Exception {
String ddl =
"CREATE VIRTUAL FUNCTION SourceFunc(flag boolean, msg varchar) RETURNS varchar "
+ "OPTIONS(CATEGORY 'misc', AGGREGATE 'true', \"allows-distinct\" 'true', UUID 'y')";
Schema s = helpParse(ddl, "model").getSchema();
FunctionMethod fm = s.getFunction("y");
assertNotNull(fm);
assertEquals("string", fm.getOutputParameter().getType());
assertEquals(FunctionMethod.PushDown.CAN_PUSHDOWN, fm.getPushdown());
assertEquals(2, fm.getInputParameterCount());
assertEquals("flag", fm.getInputParameters().get(0).getName());
assertEquals("boolean", fm.getInputParameters().get(0).getType());
assertEquals("msg", fm.getInputParameters().get(1).getName());
assertEquals("string", fm.getInputParameters().get(1).getType());
assertFalse(fm.getInputParameters().get(1).isVarArg());
assertNotNull(fm.getAggregateAttributes());
assertTrue(fm.getAggregateAttributes().allowsDistinct());
assertEquals(FunctionMethod.Determinism.DETERMINISTIC, fm.getDeterminism());
assertEquals("misc", fm.getCategory());
assertFalse(fm.isNullOnNull());
}