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[SPARK-27946] Hive DDL to Spark DDL conversion USING "show create table" - Spark - [issue]
...Many users migrate tables created with Hive DDL to Spark. Defining the table with Spark DDL brings performance benefits. We need to add a feature to Show Create Table that allows you to gene...
http://issues.apache.org/jira/browse/SPARK-27946    Author: Xiao Li , 2019-06-23, 08:36
[SPARK-27768] Infinity, -Infinity, NaN should be recognized in a case insensitive manner - Spark - [issue]
...When the inputs contain the constant 'infinity', Spark SQL does not generate the expected results.SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))FROM (VALUES ('1'), (CAST('infinity...
http://issues.apache.org/jira/browse/SPARK-27768    Author: Xiao Li , 2019-06-23, 03:31
[SPARK-28112] Fix Kryo exception perf. bottleneck in tests due to absence of ML/MLlib classes - Spark - [issue]
...In a nutshell, it looks like the absence of ML / MLlib classes on the classpath causes code in KryoSerializer to throw and catch ClassNotFoundExceptions whenever instantiating a new serializ...
http://issues.apache.org/jira/browse/SPARK-28112    Author: Xiao Li , 2019-06-20, 02:06
[expand - 1 more] - Jenkins Jobs for Hadoop-3.2 profile - Spark - [mail # dev]
...Thank you, Shane!!!Will do it next time. : )On Wed, Jun 19, 2019 at 3:15 PM shane knapp  wrote:> i will do it later this week.  also, in the future, please file jiras for> st...
   Author: Xiao Li , 2019-06-19, 22:23
Filter cannot be pushed via a Join - Spark - [mail # user]
...Hi, William,Thanks for reporting it. Could you open a JIRA?Cheers,XiaoWilliam Wong  于2019年6月18日周二 上午8:57写道:> BTW, I noticed a workaround is creating a custom rule to remove 'empty>...
   Author: Xiao Li , 2019-06-18, 17:35
[SPARK-27767] Built-in function: generate_series - Spark - [issue]
...https://www.postgresql.org/docs/9.1/functions-srf.htmlgenerate_series(start, stop): Generate a series of values, from start to stop with a step size of one ...
http://issues.apache.org/jira/browse/SPARK-27767    Author: Xiao Li , 2019-06-17, 20:02
[SPARK-27770] Add aggregates.sql - Part1 - Spark - [issue]
...In this ticket, we plan to add the regression test cases of https://github.com/postgres/postgres/blob/02ddd499322ab6f2f0d58692955dc9633c2150fc/src/test/regress/sql/aggregates.sql#L1-L143...
http://issues.apache.org/jira/browse/SPARK-27770    Author: Xiao Li , 2019-06-14, 16:48
[SPARK-23903] Add support for date extract - Spark - [issue]
...Heavily used in timeseries based datasets. https://www.postgresql.org/docs/9.1/static/functions-datetime.html#FUNCTIONS-DATETIME-EXTRACTEXTRACT(field FROM source) ...
http://issues.apache.org/jira/browse/SPARK-23903    Author: Xiao Li , 2019-06-12, 08:02
[SPARK-27972] Move SQL migration guide to the top level - Spark - [issue]
...Currently, only SQL and MLLib  have the dedicated section for documenting behavior changes and breaking changes. We found these guides simplify the upgrade experience for end users. https://...
http://issues.apache.org/jira/browse/SPARK-27972    Author: Xiao Li , 2019-06-09, 20:04
[SPARK-23906] Add UDF trunc(numeric) - Spark - [issue]
...https://issues.apache.org/jira/browse/HIVE-14582We already have date_trunc and trunc. Need to discuss whether we should introduce a new name or reuse trunc for truncating numbers....
http://issues.apache.org/jira/browse/SPARK-23906    Author: Xiao Li , 2019-06-01, 15:08