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  1. Calcite
  2. CALCITE-4042

JoinCommuteRule must not match SEMI / ANTI join

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      JoinCommuteRule must not match SEMI / ANTI join, because these types cannot be swapped.

      This is a minor issue, because the "default" JoinCommuteRule.INSTANCE matches only INNER joins. However, there is another version of the rule (JoinCommuteRule.SWAP_OUTER, currently only used in a few unit tests), to match also outer joins, which could potentially match a SEMI / ANTI join.

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            rubenql Ruben Q L
            rubenql Ruben Q L
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