Examples with LogicalExchange org.apache.calcite.rel.logical.LogicalExchange used on opensource projects

Example 1 with LogicalExchange

use of org.apache.calcite.rel.logical.LogicalExchange in project calcite by apache.

the class RelMetadataTest method testDistributionHashEmpty.

@Test
public void testDistributionHashEmpty() {
    final RelNode rel = convertSql("select * from emp");
    final RelDistribution dist = RelDistributions.hash(ImmutableList.<Integer>of());
    final LogicalExchange exchange = LogicalExchange.create(rel, dist);
    final RelMetadataQuery mq = RelMetadataQuery.instance();
    RelDistribution d = mq.getDistribution(exchange);
    assertThat(d, is(dist));
}

Example 2 with LogicalExchange

use of org.apache.calcite.rel.logical.LogicalExchange in project calcite by apache.

the class RelMetadataTest method testDistributionHash.

@Test
public void testDistributionHash() {
    final RelNode rel = convertSql("select * from emp");
    final RelDistribution dist = RelDistributions.hash(ImmutableList.of(1));
    final LogicalExchange exchange = LogicalExchange.create(rel, dist);
    final RelMetadataQuery mq = RelMetadataQuery.instance();
    RelDistribution d = mq.getDistribution(exchange);
    assertThat(d, is(dist));
}

Example 3 with LogicalExchange

use of org.apache.calcite.rel.logical.LogicalExchange in project calcite by apache.

the class RelMetadataTest method testDistributionSingleton.

@Test
public void testDistributionSingleton() {
    final RelNode rel = convertSql("select * from emp");
    final RelDistribution dist = RelDistributions.SINGLETON;
    final LogicalExchange exchange = LogicalExchange.create(rel, dist);
    final RelMetadataQuery mq = RelMetadataQuery.instance();
    RelDistribution d = mq.getDistribution(exchange);
    assertThat(d, is(dist));
}