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CAST keep nullable#11733

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4ertus2 merged 1 commit intoClickHouse:masterfrom
4ertus2:some
Jun 18, 2020
Merged

CAST keep nullable#11733
4ertus2 merged 1 commit intoClickHouse:masterfrom
4ertus2:some

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@4ertus2 4ertus2 commented Jun 17, 2020

I hereby agree to the terms of the CLA available at: https://yandex.ru/legal/cla/?lang=en

Changelog category (leave one):

  • Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
Add cast_keep_nullable setting. If set CAST(something_nullable AS Type) return Nullable(Type).

Detailed description / Documentation draft:
Continuation of #11053

Closes #7119

@4ertus2 4ertus2 mentioned this pull request Jun 17, 2020
@blinkov blinkov added the pr-improvement Pull request with some product improvements label Jun 17, 2020
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pr-improvement Pull request with some product improvements

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Compatibility of CAST operator.

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