jinxing64 commented on issue #1422: [CALCITE-3300] Add a star identifier as operand to "SqlCountAggFunction" if no operands given while in the method "createCall" URL: https://github.com/apache/calcite/pull/1422#issuecomment-544105374 In current code https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java#L5132 `*` is explicitly checked and removed for `count(*)` when converting sql to rel. Shall we just replace `*` with the first column of the child ?
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