com.hazelcast.jet.sql.impl.opt.physical.JoinPhysicalRel Maven / Gradle / Ivy
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* Copyright 2024 Hazelcast Inc.
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* Licensed under the Hazelcast Community License (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
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* http://hazelcast.com/hazelcast-community-license
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package com.hazelcast.jet.sql.impl.opt.physical;
import com.hazelcast.jet.sql.impl.JetJoinInfo;
import com.hazelcast.sql.impl.QueryParameterMetadata;
import com.hazelcast.sql.impl.expression.Expression;
import com.hazelcast.sql.impl.plan.node.PlanNodeSchema;
import com.hazelcast.shaded.org.apache.calcite.plan.RelOptCluster;
import com.hazelcast.shaded.org.apache.calcite.plan.RelTraitSet;
import com.hazelcast.shaded.org.apache.calcite.rel.RelNode;
import com.hazelcast.shaded.org.apache.calcite.rel.RelWriter;
import com.hazelcast.shaded.org.apache.calcite.rel.core.Join;
import com.hazelcast.shaded.org.apache.calcite.rel.core.JoinInfo;
import com.hazelcast.shaded.org.apache.calcite.rel.core.JoinRelType;
import com.hazelcast.shaded.org.apache.calcite.rex.RexNode;
import com.hazelcast.shaded.org.apache.calcite.rex.RexUtil;
import static java.util.Collections.emptyList;
import static java.util.Collections.emptySet;
public abstract class JoinPhysicalRel extends Join implements PhysicalRel {
public JoinPhysicalRel(
RelOptCluster cluster,
RelTraitSet traitSet,
RelNode left,
RelNode right,
RexNode condition,
JoinRelType joinType
) {
super(cluster, traitSet, emptyList(), left, right, condition, emptySet(), joinType);
}
@Override
public PlanNodeSchema schema(QueryParameterMetadata parameterMetadata) {
PlanNodeSchema leftSchema = ((PhysicalRel) getLeft()).schema(parameterMetadata);
PlanNodeSchema rightSchema = ((PhysicalRel) getRight()).schema(parameterMetadata);
return PlanNodeSchema.combine(leftSchema, rightSchema);
}
public JetJoinInfo joinInfo(QueryParameterMetadata parameterMetadata) {
JoinInfo joinInfo = analyzeCondition();
int[] leftKeys = joinInfo.leftKeys.toIntArray();
int[] rightKeys = joinInfo.rightKeys.toIntArray();
RexNode predicate = RexUtil.composeConjunction(getCluster().getRexBuilder(), joinInfo.nonEquiConditions);
Expression nonEquiCondition = filter(schema(parameterMetadata), predicate, parameterMetadata);
Expression condition = filter(schema(parameterMetadata), getCondition(), parameterMetadata);
return new JetJoinInfo(getJoinType(), leftKeys, rightKeys, nonEquiCondition, condition);
}
@Override
public RelWriter explainTerms(RelWriter pw) {
return super.explainTerms(pw).item("conditionType",
!analyzeCondition().rightKeys.isEmpty() ? "equiJoin" : "nonEquiJoin");
}
}
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