Examples with FunctionMetadata io.trino.metadata.FunctionMetadata used on opensource projects

Example 16 with FunctionMetadata

use of io.trino.metadata.FunctionMetadata in project trino by trinodb.

the class TestAnnotationEngineForScalars method testParametricScalarParse.

@Test
public void testParametricScalarParse() {
    Signature expectedSignature = new Signature("parametric_scalar", ImmutableList.of(typeVariable("T")), ImmutableList.of(), new TypeSignature("T"), ImmutableList.of(new TypeSignature("T")), false);
    List<SqlScalarFunction> functions = ScalarFromAnnotationsParser.parseFunctionDefinition(ParametricScalarFunction.class);
    assertEquals(functions.size(), 1);
    ParametricScalar scalar = (ParametricScalar) functions.get(0);
    assertImplementationCount(scalar, 0, 2, 0);
    FunctionMetadata functionMetadata = scalar.getFunctionMetadata();
    assertEquals(functionMetadata.getSignature(), expectedSignature);
    assertTrue(functionMetadata.isDeterministic());
    assertFalse(functionMetadata.isHidden());
    assertEquals(functionMetadata.getDescription(), "Parametric scalar description");
}