jcamachor commented on a change in pull request #1405:
URL: https://github.com/apache/hive/pull/1405#discussion_r476491640
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveSemiJoinRule.java
##########
@@ -33,194 +37,263 @@
import org.apache.calcite.rex.RexBuilder;
import org.apache.calcite.rex.RexNode;
import org.apache.calcite.tools.RelBuilder;
+import org.apache.calcite.tools.RelBuilder.GroupKey;
import org.apache.calcite.tools.RelBuilderFactory;
import org.apache.calcite.util.ImmutableBitSet;
+import org.apache.calcite.util.ImmutableIntList;
+import org.apache.hadoop.hive.ql.optimizer.calcite.HiveCalciteUtil;
import org.apache.hadoop.hive.ql.optimizer.calcite.HiveRelFactories;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Lists;
import java.util.ArrayList;
import java.util.List;
/**
- * Planner rule that creates a {@code SemiJoinRule} from a
- * {@link org.apache.calcite.rel.core.Join} on top of a
- * {@link org.apache.calcite.rel.logical.LogicalAggregate}.
- *
- * TODO Remove this rule and use Calcite's SemiJoinRule. Not possible currently
- * since Calcite doesnt use RelBuilder for this rule and we want to generate
HiveSemiJoin rel here.
+ * Class that gathers SemiJoin conversion rules.
*/
-public abstract class HiveSemiJoinRule extends RelOptRule {
+public class HiveSemiJoinRule {
- protected static final Logger LOG =
LoggerFactory.getLogger(HiveSemiJoinRule.class);
+ public static final HiveProjectJoinToSemiJoinRule INSTANCE_PROJECT =
+ new HiveProjectJoinToSemiJoinRule(HiveRelFactories.HIVE_BUILDER);
- public static final HiveProjectToSemiJoinRule INSTANCE_PROJECT =
- new HiveProjectToSemiJoinRule(HiveRelFactories.HIVE_BUILDER);
+ public static final HiveAggregateJoinToSemiJoinRule INSTANCE_AGGREGATE =
+ new HiveAggregateJoinToSemiJoinRule(HiveRelFactories.HIVE_BUILDER);
- public static final HiveProjectToSemiJoinRuleSwapInputs
INSTANCE_PROJECT_SWAPPED =
- new HiveProjectToSemiJoinRuleSwapInputs(HiveRelFactories.HIVE_BUILDER);
+ public static final HiveProjectJoinToSemiJoinRuleSwapInputs
INSTANCE_PROJECT_SWAPPED =
+ new
HiveProjectJoinToSemiJoinRuleSwapInputs(HiveRelFactories.HIVE_BUILDER);
- public static final HiveAggregateToSemiJoinRule INSTANCE_AGGREGATE =
- new HiveAggregateToSemiJoinRule(HiveRelFactories.HIVE_BUILDER);
+ public static final HiveAggregateJoinToSemiJoinRuleSwapInputs
INSTANCE_AGGREGATE_SWAPPED =
+ new
HiveAggregateJoinToSemiJoinRuleSwapInputs(HiveRelFactories.HIVE_BUILDER);
Review comment:
done.
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