Fix bad code in transforming query for external database.#7252
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alexey-milovidov merged 3 commits intomasterfrom Oct 10, 2019
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| class ReplacingConstantExpressionsMatcher | ||
| { | ||
| public: | ||
| using Data = Block; |
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Interesting hack. I've never thought about assigning Data to a real class.
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I didn't consider it as hack. I have just read ActionsVisitor and have thought that it's the intended way of usage.
akuzm
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Oct 29, 2019
…ery-for-external-database Fix bad code in transforming query for external database. (cherry picked from commit 9c1c596)
CurtizJ
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Nov 15, 2019
…ery-for-external-database Fix bad code in transforming query for external database. (cherry picked from commit 9c1c596)
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Fixed constant expressions folding for external database engines (MySQL, ODBC, JDBC). In previous versions it wasn't working for multiple constant expressions and was not working at all for Date, DateTime and UUID. This fixes #7245