Examples with DeterminismEvaluator com.facebook.presto.sql.relational.DeterminismEvaluator used on opensource projects

Example 1 with DeterminismEvaluator

use of com.facebook.presto.sql.relational.DeterminismEvaluator in project presto by prestodb.

the class TestPageProcessorCompiler method testNonDeterministicProject.

@Test
public void testNonDeterministicProject() throws Exception {
    Signature lessThan = internalOperator(LESS_THAN, BOOLEAN, ImmutableList.of(BIGINT, BIGINT));
    CallExpression random = new CallExpression(new Signature("random", SCALAR, parseTypeSignature(StandardTypes.BIGINT), parseTypeSignature(StandardTypes.BIGINT)), BIGINT, singletonList(new ConstantExpression(10L, BIGINT)));
    InputReferenceExpression col0 = new InputReferenceExpression(0, BIGINT);
    CallExpression lessThanRandomExpression = new CallExpression(lessThan, BOOLEAN, ImmutableList.of(col0, random));
    PageProcessor processor = new ExpressionCompiler(createTestMetadataManager()).compilePageProcessor(new ConstantExpression(TRUE, BOOLEAN), ImmutableList.of(lessThanRandomExpression)).get();
    assertFalse(new DeterminismEvaluator(METADATA_MANAGER.getFunctionRegistry()).isDeterministic(lessThanRandomExpression));
    Page page = new Page(createLongDictionaryBlock(1, 100));
    Page outputPage = processor.processColumnarDictionary(null, page, ImmutableList.of(BOOLEAN));
    assertFalse(outputPage.getBlock(0) instanceof DictionaryBlock);
}