Package org.apache.beam.sdk.extensions.sql.zetasql.unnest

Class BeamZetaSqlUnnestRule

java.lang.Object
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRule
org.apache.beam.sdk.extensions.sql.zetasql.unnest.BeamZetaSqlUnnestRule
public class BeamZetaSqlUnnestRule extends org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRule
A ConverterRule to replace Correlate ZetaSqlUnnest with BeamZetaSqlUnnestRel.

This class is a copy of BeamUnnestRule except that it works on ZetaSqlUnnest instead of Calcite Uncollect.

Details of why unwrapping structs breaks ZetaSQL UNNEST syntax is in https://issues.apache.org/jira/browse/BEAM-10896.

  • Nested Class Summary

    Nested classes/interfaces inherited from class org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRule

    org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final BeamZetaSqlUnnestRule
    INSTANCE
     

    Fields inherited from class org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRule

    description, operands, relBuilderFactory

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    onMatch(org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRuleCall call)
     

    Methods inherited from class org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRule

    any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Field Details

  • Method Details

    • onMatch

      public void onMatch(org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRuleCall call)
      Specified by:
      onMatch in class org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptRule