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Support HAVING in new SQL engine #798
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chloe-zh
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Oct 27, 2020
penghuo
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Dec 15, 2020
* Change grammar and ast builder with UT * Optimize condition expression in filter * Support alias * Add comparison test * Support having without group by * Add doctest * Prepare PR * Fix doctest
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Issue #, if available:
Description of changes:
FilterAST node to integrate with analyzer in core engine. (To replace alias inHAVINGcondition, add a newAstHavingFilterBuilderwhich extendsAstExpressionBuilderso it doesn't need to replace and clone conditions later)Documentation: https://github.com/dai-chen/sql/blob/support-having-in-new-sql-engine/docs/user/dql/aggregations.rst#having-clause
Testing: Add new UT and comparison IT.
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