Examples with Join org.apache.calcite.rel.core.Join used on opensource projects

Example 76 with Join

use of org.apache.calcite.rel.core.Join in project drill by apache.

the class PluginConverterRule method matches.

@Override
public boolean matches(RelOptRuleCall call) {
    RelNode rel = call.rel(0);
    boolean canImplement = false;
    // cannot use visitor pattern here, since RelShuttle supports only logical rel implementations
    if (rel instanceof Aggregate) {
        canImplement = pluginImplementor.canImplement(((Aggregate) rel));
    } else if (rel instanceof Filter) {
        canImplement = pluginImplementor.canImplement(((Filter) rel));
    } else if (rel instanceof DrillLimitRelBase) {
        canImplement = pluginImplementor.canImplement(((DrillLimitRelBase) rel));
    } else if (rel instanceof Project) {
        canImplement = pluginImplementor.canImplement(((Project) rel));
    } else if (rel instanceof Sort) {
        canImplement = pluginImplementor.canImplement(((Sort) rel));
    } else if (rel instanceof Union) {
        canImplement = pluginImplementor.canImplement(((Union) rel));
    } else if (rel instanceof Join) {
        canImplement = pluginImplementor.canImplement(((Join) rel));
    }
    return canImplement && super.matches(call);
}

Example 77 with Join

use of org.apache.calcite.rel.core.Join in project calcite by apache.

the class SqlToRelConverter method createJoin.

protected RelNode createJoin(Blackboard bb, RelNode leftRel, RelNode rightRel, RexNode joinCond, JoinRelType joinType) {
    assert joinCond != null;
    final CorrelationUse p = getCorrelationUse(bb, rightRel);
    if (p != null) {
        LogicalCorrelate corr = LogicalCorrelate.create(leftRel, p.r, p.id, p.requiredColumns, SemiJoinType.of(joinType));
        if (!joinCond.isAlwaysTrue()) {
            final RelFactories.FilterFactory factory = RelFactories.DEFAULT_FILTER_FACTORY;
            return factory.createFilter(corr, joinCond);
        }
        return corr;
    }
    final Join originalJoin = (Join) RelFactories.DEFAULT_JOIN_FACTORY.createJoin(leftRel, rightRel, joinCond, ImmutableSet.<CorrelationId>of(), joinType, false);
    return RelOptUtil.pushDownJoinConditions(originalJoin, relBuilder);
}