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author | Josh Rosen <joshrosen@databricks.com> | 2015-05-18 21:53:44 -0700 |
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committer | Reynold Xin <rxin@databricks.com> | 2015-05-18 21:53:44 -0700 |
commit | c9fa870a6de3f7d0903fa7a75ea5ffb6a2fcd174 (patch) | |
tree | fdb1f2695bb214e1252ec7f64f350ecf032f1e27 /sql/hive | |
parent | c2437de1899e09894df4ec27adfaa7fac158fd3a (diff) | |
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[SPARK-7687] [SQL] DataFrame.describe() should cast all aggregates to String
In `DataFrame.describe()`, the `count` aggregate produces an integer, the `avg` and `stdev` aggregates produce doubles, and `min` and `max` aggregates can produce varying types depending on what type of column they're applied to. As a result, we should cast all aggregate results to String so that `describe()`'s output types match its declared output schema.
Author: Josh Rosen <joshrosen@databricks.com>
Closes #6218 from JoshRosen/SPARK-7687 and squashes the following commits:
146b615 [Josh Rosen] Fix R test.
2974bd5 [Josh Rosen] Cast to string type instead
f206580 [Josh Rosen] Cast to double to fix SPARK-7687
307ecbf [Josh Rosen] Add failing regression test for SPARK-7687
Diffstat (limited to 'sql/hive')
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