Examples with ReduceExpressionsRule org.apache.calcite.rel.rules.ReduceExpressionsRule used on opensource projects

Example 1 with ReduceExpressionsRule

use of org.apache.calcite.rel.rules.ReduceExpressionsRule in project calcite by apache.

the class RelOptRulesTest method testReduceConstantsRequiresExecutor.

/**
 * Test case for
 * <a href="https://issues.apache.org/jira/browse/CALCITE-566">[CALCITE-566]
 * ReduceExpressionsRule requires planner to have an Executor</a>.
 */
@Test
void testReduceConstantsRequiresExecutor() {
    // Rule should not fire, but there should be no NPE
    // Create a new planner instance, so we can remove its executor without
    // breaking other tests.
    final RelOptPlanner planner = new MockRelOptPlanner(Contexts.empty());
    final String sql = "select * from (values (1,2)) where 1 + 2 > 3 + CAST(NULL AS INTEGER)";
    sql(sql).withFactory(t -> t.withPlannerFactory(context -> planner)).withBefore((fixture, r) -> {
        // Remove the executor
        assertThat(r.getCluster().getPlanner(), sameInstance(planner));
        r.getCluster().getPlanner().setExecutor(null);
        return r;
    }).withRule(CoreRules.FILTER_REDUCE_EXPRESSIONS).check();
}

Example 2 with ReduceExpressionsRule

use of org.apache.calcite.rel.rules.ReduceExpressionsRule in project calcite by apache.

the class RelOptRulesTest method checkDynamicFunctions.

RelOptFixture checkDynamicFunctions(boolean treatDynamicCallsAsConstant) {
    // Create a customized executor with given context operator that reduces
    // "USER" to "happyCalciteUser"
    final RexExecutorImpl executor = new RexExecutorImpl(DataContexts.of(name -> name.equals(DataContext.Variable.USER.camelName) ? "happyCalciteUser" : fail("unknown: " + name)));
    RelOptPlanner planner = new MockRelOptPlanner(Contexts.empty());
    planner.setExecutor(executor);
    final ReduceExpressionsRule<?> rule = CoreRules.PROJECT_REDUCE_EXPRESSIONS.config.withOperandFor(LogicalProject.class).withTreatDynamicCallsAsConstant(treatDynamicCallsAsConstant).as(ProjectReduceExpressionsRule.Config.class).toRule();
    final String sql = "select USER from emp";
    return sql(sql).withFactory(t -> t.withPlannerFactory(context -> planner)).withRule(rule);
}