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  1. Calcite
  2. CALCITE-3169

RelDecorrelator should return for SEMI/ANTI join decorrelate

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      /**
         * Rewrite LogicalJoin.
         *
         * @param rel Join
         */
        public Frame decorrelateRel(LogicalJoin rel) {
          // For SEMI/ANTI join decorrelate it's input directly,
          // because the correlate variables can only be propagated from
          // the left side, which is not supported yet.
          if (!rel.getJoinType().projectsRight()) {
            decorrelateRel((RelNode) rel);
          }
      ...
      

      return is missing before decorrelateRel((RelNode) rel);

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            danny0405 Danny Chen
            godfreyhe godfrey he
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