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| author | Cheng Hao <hao.cheng@intel.com> | 2014-11-20 16:50:59 -0800 |
|---|---|---|
| committer | Michael Armbrust <michael@databricks.com> | 2014-11-20 16:50:59 -0800 |
| commit | 84d79ee9ec47465269f7b0a7971176da93c96f3f (patch) | |
| tree | ef29e8beb3255b5eb5be01a335d5d422ef466100 /docs/README.md | |
| parent | d39f2e9c683a4ab78b29eb3c5668325bf8568e8c (diff) | |
| download | spark-84d79ee9ec47465269f7b0a7971176da93c96f3f.tar.gz spark-84d79ee9ec47465269f7b0a7971176da93c96f3f.tar.bz2 spark-84d79ee9ec47465269f7b0a7971176da93c96f3f.zip | |
[SPARK-4244] [SQL] Support Hive Generic UDFs with constant object inspector parameters
Query `SELECT named_struct(lower("AA"), "12", lower("Bb"), "13") FROM src LIMIT 1` will throw exception, some of the Hive Generic UDF/UDAF requires the input object inspector is `ConstantObjectInspector`, however, we won't get that before the expression optimization executed. (Constant Folding).
This PR is a work around to fix this. (As ideally, the `output` of LogicalPlan should be identical before and after Optimization).
Author: Cheng Hao <hao.cheng@intel.com>
Closes #3109 from chenghao-intel/optimized and squashes the following commits:
487ff79 [Cheng Hao] rebase to the latest master & update the unittest
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