Reynold Xin 554403fd91 [SQL] Improve DataFrame API error reporting ... 1. Throw UnsupportedOperationException if a Column is not computable. 2. Perform eager analysis on DataFrame so we can catch errors when they happen (not when an action is run). Author: Reynold Xin <rxin@databricks.com> Author: Davies Liu <davies@databricks.com> Closes #4296 from rxin/col-computability and squashes the following commits: 6527b86 [Reynold Xin] Merge pull request #8 from davies/col-computability fd92bc7 [Reynold Xin] Merge branch 'master' into col-computability f79034c [Davies Liu] fix python tests 5afe1ff [Reynold Xin] Fix scala test. 17f6bae [Reynold Xin] Various fixes. b932e86 [Reynold Xin] Added eager analysis for error reporting. e6f00b8 [Reynold Xin] [SQL][API] ComputableColumn vs IncomputableColumn		2015-02-02 19:01:47 -08:00
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src	[SQL] Improve DataFrame API error reporting	2015-02-02 19:01:47 -08:00
pom.xml	[SPARK-4048] Enhance and extend hadoop-provided profile.	2015-01-08 17:15:13 -08:00