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| author | Herman van Hovell <hvanhovell@databricks.com> | 2016-08-08 16:34:57 -0700 |
|---|---|---|
| committer | Yin Huai <yhuai@databricks.com> | 2016-08-08 16:34:57 -0700 |
| commit | df10658831f4e5f9756a5732673ad12904b5d05c (patch) | |
| tree | 8a4bc778cbd63df61021033d01f73ba404807065 /sql/catalyst/src/main/scala | |
| parent | 53d1c7877967f03cc9c8c7e7394f380d1bbefc27 (diff) | |
| download | spark-df10658831f4e5f9756a5732673ad12904b5d05c.tar.gz spark-df10658831f4e5f9756a5732673ad12904b5d05c.tar.bz2 spark-df10658831f4e5f9756a5732673ad12904b5d05c.zip | |
[SPARK-16749][SQL] Simplify processing logic in LEAD/LAG processing.
## What changes were proposed in this pull request?
The logic for LEAD/LAG processing is more complex that it needs to be. This PR fixes that.
## How was this patch tested?
Existing tests.
Author: Herman van Hovell <hvanhovell@databricks.com>
Closes #14376 from hvanhovell/SPARK-16749.
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