Wenchen Fan 0ee53ebce9 [SPARK-2096][SQL] support dot notation on array of struct ... ~~The rule is simple: If you want `a.b` work, then `a` must be some level of nested array of struct(level 0 means just a StructType). And the result of `a.b` is same level of nested array of b-type. An optimization is: the resolve chain looks like `Attribute -> GetItem -> GetField -> GetField ...`, so we could transmit the nested array information between `GetItem` and `GetField` to avoid repeated computation of `innerDataType` and `containsNullList` of that nested array.~~ marmbrus Could you take a look? to evaluate `a.b`, if `a` is array of struct, then `a.b` means get field `b` on each element of `a`, and return a result of array. Author: Wenchen Fan <cloud0fan@outlook.com> Closes #2405 from cloud-fan/nested-array-dot and squashes the following commits: 08a228a [Wenchen Fan] support dot notation on array of struct		2015-02-09 16:39:34 -08:00
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src	[SPARK-2096][SQL] support dot notation on array of struct	2015-02-09 16:39:34 -08:00
pom.xml	[SPARK-4987] [SQL] parquet timestamp type support	2015-02-03 12:06:06 -08:00