Implement distinct in AggFunction #14623
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Wei-hao-Li
commented
Jan 3, 2025
Wei-hao-Li
commented
- Support all agg-functions include UDAF.
- This PR only contains the basic implement, the optimizers will be supported in next PR.
Signed-off-by: Weihao Li <[email protected]>
Signed-off-by: Weihao Li <[email protected]>
Signed-off-by: Weihao Li <[email protected]>
Signed-off-by: Weihao Li <[email protected]>
JackieTien97
requested changes
Jan 6, 2025
...e/iotdb/db/queryengine/execution/operator/source/relational/aggregation/AggregationMask.java
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...otdb/db/queryengine/execution/operator/source/relational/aggregation/AccumulatorFactory.java
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...e/iotdb/db/queryengine/execution/operator/source/relational/aggregation/AggregationMask.java
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...db/db/queryengine/execution/operator/source/relational/aggregation/MaskedRecordIterator.java
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iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/udf/access/RecordIterator.java
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Signed-off-by: Weihao Li <[email protected]>
Signed-off-by: Weihao Li <[email protected]>
Signed-off-by: Weihao Li <[email protected]>
Signed-off-by: Weihao Li <[email protected]>
|
I noticed that In Trino there's a MarkDistinctOperator, does it have something to do with Distinct Function? |
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