GitHub user gczsjdy opened a pull request:
https://github.com/apache/spark/pull/16476
Implement expression field
This is an implementation of Hive's `field`.
field(str, str1, str2, ... ) is a variable-length(>=2) function which
returns the index of str in the list (str1, str2, ... ) or 0 if not found.
Every parameter is required to be subtype of AtomicType.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gczsjdy/spark udffield
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16476.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #16476
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commit 5f650641858653b42e08a73c87daf8af0b7cdd2b
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-21T12:30:17Z
Add field expression
commit b9d589f78c287c5155f668b726c257465a1e0327
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-21T12:33:13Z
Add field expression unit test
commit 0bb83282b36cee3e6edc15e991a65ffb7de54474
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-28T13:00:40Z
Add doGenCode and modify the function description
commit 255b177b7c1a81e3f79b175498c754e2c549791e
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-28T13:25:24Z
Add field expression unit test cases
commit bb5a3ef79ada230660ae867f07af7c8d3a58d43b
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-28T13:31:18Z
Modify function description
commit f291815544fac747cb26482ec2144d4f1bc91680
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-29T06:23:36Z
Add support for field children which is not List
commit f07ec52d745bc379153a56333638f957748139d1
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-29T06:29:30Z
Add field function API for DataFrame and unit test cases
commit 6319dc5e091a6b593e22a172397421955811c6b6
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-29T07:03:40Z
Modify @since version
commit df1038d6665c1c084a0ef0a1ac9efa0ec8f5d52d
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-29T07:04:19Z
Add Python API
commit 38fe71d90b85b2e8a3e0badda0a40ae411713b69
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-29T08:31:43Z
Add Apache License
commit 3fc66d5af7030baebbe14f0b21f2afd2ff9f231b
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2016-12-30T05:47:26Z
Modify import order
commit 5c55f42db084e5777704583d36d018da288e76f2
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2017-01-05T05:48:33Z
Move Field class def to ConditionalExpressions and modify the test
commit ce177f0f0c1ae9c21d72f2f9a4180718a74271e4
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2017-01-05T05:58:40Z
Modify the line feed's location
commit 57229a99baa2da09167a62291841eafada78f3e0
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2017-01-05T06:17:57Z
Move Field function test to ColumnExpressionSuite
commit 71e54da58f7ccaad187bf5c693111c2ce076faf2
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2017-01-05T08:56:21Z
Add null support and corresponding test cases
commit 83687c8c3bc38dc221dc42595ba83e992d0cf36e
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2017-01-05T09:09:40Z
Remove blank lines
commit 192fadc68a63552dad40a1fe40e664425cd55146
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2017-01-05T10:18:46Z
Modify field function definition to require >= 2 params
commit 08ab497582344158df7b0fbb95808f5444e1aa81
Author: GuoChenzhao <chenzhao....@intel.com>
Date: 2017-01-05T10:22:48Z
Add blank line
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