Kent Yao 0cf4f07c66 [SPARK-29545][SQL] Add support for bit_xor aggregate function ... ### What changes were proposed in this pull request? bit_xor(expr) - Returns the bitwise XOR of all non-null input values, or null if none ### Why are the changes needed? As we support `bit_and`, `bit_or` now, we'd better support the related aggregate function **bit_xor** ahead of postgreSQL, because many other popular databases support it. http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.help.sqlanywhere.12.0.1/dbreference/bit-xor-function.html https://dev.mysql.com/doc/refman/5.7/en/group-by-functions.html#function_bit-or https://www.vertica.com/docs/9.2.x/HTML/Content/Authoring/SQLReferenceManual/Functions/Aggregate/BIT_XOR.htm?TocPath=SQL%20Reference%20Manual%7CSQL%20Functions%7CAggregate%20Functions%7C_____10 ### Does this PR introduce any user-facing change? add a new bit agg ### How was this patch tested? UTs added Closes #26205 from yaooqinn/SPARK-29545. Authored-by: Kent Yao <yaooqinn@hotmail.com> Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>		2019-10-25 22:19:19 +09:00
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main	[SPARK-29545][SQL] Add support for bit_xor aggregate function	2019-10-25 22:19:19 +09:00
test	[SPARK-29526][SQL] UNCACHE TABLE should look up catalog/table like v2 commands	2019-10-24 14:51:23 -07:00