Examples with REPARTITION io.prestosql.sql.planner.plan.ExchangeNode.Type.REPARTITION used on opensource projects

Example 1 with REPARTITION

use of io.prestosql.sql.planner.plan.ExchangeNode.Type.REPARTITION in project hetu-core by openlookeng.

the class TestWindow method testWindow.

@Test
public void testWindow() {
    // Window partition key is pre-bucketed.
    assertDistributedPlan("SELECT rank() OVER (PARTITION BY orderkey) FROM orders", anyTree(window(pattern -> pattern.specification(specification(ImmutableList.of("orderkey"), ImmutableList.of(), ImmutableMap.of())).addFunction(functionCall("rank", Optional.empty(), ImmutableList.of())), project(tableScan("orders", ImmutableMap.of("orderkey", "orderkey"))))));
    assertDistributedPlan("SELECT row_number() OVER (PARTITION BY orderkey) FROM orders", anyTree(rowNumber(pattern -> pattern.partitionBy(ImmutableList.of("orderkey")), project(tableScan("orders", ImmutableMap.of("orderkey", "orderkey"))))));
    // Window partition key is not pre-bucketed.
    assertDistributedPlan("SELECT rank() OVER (PARTITION BY orderstatus) FROM orders", anyTree(window(pattern -> pattern.specification(specification(ImmutableList.of("orderstatus"), ImmutableList.of(), ImmutableMap.of())).addFunction(functionCall("rank", Optional.empty(), ImmutableList.of())), exchange(LOCAL, GATHER, exchange(REMOTE, REPARTITION, project(tableScan("orders", ImmutableMap.of("orderstatus", "orderstatus"))))))));
    assertDistributedPlan("SELECT row_number() OVER (PARTITION BY orderstatus) FROM orders", anyTree(rowNumber(pattern -> pattern.partitionBy(ImmutableList.of("orderstatus")), exchange(LOCAL, GATHER, exchange(REMOTE, REPARTITION, project(tableScan("orders", ImmutableMap.of("orderstatus", "orderstatus"))))))));
    // Window to TopN RankingFunction
    for (RankingFunction rankingFunction : RankingFunction.values()) {
        assertDistributedPlan(format("SELECT orderkey FROM (SELECT orderkey, %s() OVER (PARTITION BY orderkey ORDER BY custkey) n FROM orders) WHERE n = 1", rankingFunction.getName().getObjectName()), anyTree(topNRankingNumber(pattern -> pattern.specification(ImmutableList.of("orderkey"), ImmutableList.of("custkey"), ImmutableMap.of("custkey", ASC_NULLS_LAST)), project(tableScan("orders", ImmutableMap.of("orderkey", "orderkey", "custkey", "custkey"))))));
        assertDistributedPlan(format("SELECT orderstatus FROM (SELECT orderstatus, %s() OVER (PARTITION BY orderstatus ORDER BY custkey) n FROM orders) WHERE n = 1", rankingFunction.getName().getObjectName()), anyTree(topNRankingNumber(pattern -> pattern.specification(ImmutableList.of("orderstatus"), ImmutableList.of("custkey"), ImmutableMap.of("custkey", ASC_NULLS_LAST)).partial(false), exchange(LOCAL, GATHER, exchange(REMOTE, REPARTITION, topNRankingNumber(topNRowNumber -> topNRowNumber.specification(ImmutableList.of("orderstatus"), ImmutableList.of("custkey"), ImmutableMap.of("custkey", ASC_NULLS_LAST)).partial(true), project(tableScan("orders", ImmutableMap.of("orderstatus", "orderstatus", "custkey", "custkey")))))))));
    }
}

Example 2 with REPARTITION

use of io.prestosql.sql.planner.plan.ExchangeNode.Type.REPARTITION in project hetu-core by openlookeng.

the class TestValidateAggregationsWithDefaultValues method testWithPartialAggregationBelowJoin.

@Test
public void testWithPartialAggregationBelowJoin() {
    Symbol symbolObj = new Symbol("symbol");
    PlanNode root = builder.aggregation(af -> af.step(FINAL).groupingSets(groupingSets(ImmutableList.of(symbolObj), 2, ImmutableSet.of(0))).source(builder.join(INNER, builder.exchange(e -> e.type(REPARTITION).scope(LOCAL).fixedHashDistributionParitioningScheme(ImmutableList.of(symbolObj), ImmutableList.of(symbolObj)).addInputsSet(symbolObj).addSource(builder.aggregation(ap -> ap.step(PARTIAL).groupingSets(groupingSets(ImmutableList.of(symbolObj), 2, ImmutableSet.of(0))).source(tableScanNode)))), builder.values())));
    validatePlan(root, true);
}