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| author | Davies Liu <davies@databricks.com> | 2015-12-18 10:09:17 -0800 |
|---|---|---|
| committer | Davies Liu <davies.liu@gmail.com> | 2015-12-18 10:09:17 -0800 |
| commit | 4af647c77ded6a0d3087ceafb2e30e01d97e7a06 (patch) | |
| tree | 893ad3f9d8de5b34a9ad46eba4862f898c68f044 /sql/README.md | |
| parent | ee444fe4b8c9f382524e1fa346c67ba6da8104d8 (diff) | |
| download | spark-4af647c77ded6a0d3087ceafb2e30e01d97e7a06.tar.gz spark-4af647c77ded6a0d3087ceafb2e30e01d97e7a06.tar.bz2 spark-4af647c77ded6a0d3087ceafb2e30e01d97e7a06.zip | |
[SPARK-12054] [SQL] Consider nullability of expression in codegen
This could simplify the generated code for expressions that is not nullable.
This PR fix lots of bugs about nullability.
Author: Davies Liu <davies@databricks.com>
Closes #10333 from davies/skip_nullable.
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