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| author | Felix Cheung <felixcheung_m@hotmail.com> | 2016-09-02 10:28:37 -0700 |
|---|---|---|
| committer | Shivaram Venkataraman <shivaram@cs.berkeley.edu> | 2016-09-02 10:28:37 -0700 |
| commit | 419eefd811a4e29a73bc309157f150751e478db5 (patch) | |
| tree | e5be7e3bc2dc54f7e44c800c2166656b0071eb24 /yarn | |
| parent | 812333e4336113e44d2c9473bcba1cee4a989d2c (diff) | |
| download | spark-419eefd811a4e29a73bc309157f150751e478db5.tar.gz spark-419eefd811a4e29a73bc309157f150751e478db5.tar.bz2 spark-419eefd811a4e29a73bc309157f150751e478db5.zip | |
[SPARKR][DOC] regexp_extract should doc that it returns empty string when match fails
## What changes were proposed in this pull request?
Doc change - see https://issues.apache.org/jira/browse/SPARK-16324
## How was this patch tested?
manual check
Author: Felix Cheung <felixcheung_m@hotmail.com>
Closes #14934 from felixcheung/regexpextractdoc.
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