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| author | Cheng Lian <lian@databricks.com> | 2016-07-25 09:42:39 -0700 |
|---|---|---|
| committer | Reynold Xin <rxin@databricks.com> | 2016-07-25 09:42:39 -0700 |
| commit | 7ea6d282b925819ddb3874a67b3c9da8cc41f131 (patch) | |
| tree | 5f343ac3f05a2659593d73ccd9b28575447a6d16 /README.md | |
| parent | 79826f3c7936ee27457d030c7115d5cac69befd7 (diff) | |
| download | spark-7ea6d282b925819ddb3874a67b3c9da8cc41f131.tar.gz spark-7ea6d282b925819ddb3874a67b3c9da8cc41f131.tar.bz2 spark-7ea6d282b925819ddb3874a67b3c9da8cc41f131.zip | |
[SPARK-16703][SQL] Remove extra whitespace in SQL generation for window functions
## What changes were proposed in this pull request?
This PR fixes a minor formatting issue of `WindowSpecDefinition.sql` when no partitioning expressions are present.
Before:
```sql
( ORDER BY `a` ASC ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
```
After:
```sql
(ORDER BY `a` ASC ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
```
## How was this patch tested?
New test case added in `ExpressionSQLBuilderSuite`.
Author: Cheng Lian <lian@databricks.com>
Closes #14334 from liancheng/window-spec-sql-format.
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