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[SPARK-24369] A bug when having multiple distinct aggregations - Spark - [issue]
...SELECT corr(DISTINCT x, y), corr(DISTINCT y, x), count(*) FROM(VALUES   (1, 1),   (2, 2),   (2, 2)) t(x, y)It returns java.lang.RuntimeExceptionYou hit a query ...
http://issues.apache.org/jira/browse/SPARK-24369    Author: Xiao Li , 2018-06-04, 04:58
[SPARK-23933] High-order function: map(array<K>, array<V>) → map<K,V> - Spark - [issue]
...Ref: https://prestodb.io/docs/current/functions/map.htmlReturns a map created using the given key/value arrays.SELECT map(ARRAY[1,3], ARRAY[2,4]); -- {1 -> 2, 3 -> 4}...
http://issues.apache.org/jira/browse/SPARK-23933    Author: Xiao Li , 2018-06-12, 19:32
[SPARK-24542] Hive UDF series UDFXPathXXXX allow users to pass carefully crafted XML to access arbitrary files - Spark - [issue]
...Hive UDF series UDFXPathXXXX allow users to pass carefully crafted XML to access arbitrary files. Spark does not have built-in access control. When users use the external access control libr...
http://issues.apache.org/jira/browse/SPARK-24542    Author: Xiao Li , 2018-06-19, 03:52
[SPARK-24721] Failed to use PythonUDF with literal inputs in filter with data sources - Spark - [issue]
...import randomfrom pyspark.sql.functions import *from pyspark.sql.types import *def random_probability(label):    if label == 1.0:      return random.uniform(0.5, 1.0...
http://issues.apache.org/jira/browse/SPARK-24721    Author: Xiao Li , 2018-08-28, 02:58
[SPARK-24005] Remove usage of Scala’s parallel collection - Spark - [issue]
...val par = (1 to 100).par.flatMap { i =>  Thread.sleep(1000)  1 to 1000}.toSeqWe are unable to interrupt the execution of parallel collections. We need to create a common utility...
http://issues.apache.org/jira/browse/SPARK-24005    Author: Xiao Li , 2018-08-29, 21:02
[SPARK-25267] Disable ConvertToLocalRelation in the test cases of sql/core and sql/hive - Spark - [issue]
...In SharedSparkSession and TestHive, we need to disable the rule ConvertToLocalRelation for better test case coverage. To exclude the rules, we can use the SQLConf `spark.sql.optimizer.exclud...
http://issues.apache.org/jira/browse/SPARK-25267    Author: Xiao Li , 2018-09-07, 06:35
[SPARK-25328] Add an example for having two columns as the grouping key in group aggregate pandas UDF - Spark - [issue]
...https://github.com/apache/spark/pull/20295 added an alternative interface for group aggregate pandas UDFs. It does not have an example that have more than one columns as the grouping key in ...
http://issues.apache.org/jira/browse/SPARK-25328    Author: Xiao Li , 2018-09-21, 07:14
[SPARK-23573] Create linter rule to prevent misuse of SparkContext.hadoopConfiguration in SQL modules - Spark - [issue]
...SparkContext.hadoopConfiguration should not be used directly in SQL module.Instead, one should always use sessionState.newHadoopConfiguration(), which blends in configs set per session.The i...
http://issues.apache.org/jira/browse/SPARK-23573    Author: Xiao Li , 2018-08-20, 17:12
[SPARK-25296] Create ExplainSuite - Spark - [issue]
...Move the output verification of Explain to a new suite ExplainSuite....
http://issues.apache.org/jira/browse/SPARK-25296    Author: Xiao Li , 2018-08-31, 16:09
[SPARK-20918] Use FunctionIdentifier as function identifiers in FunctionRegistry - Spark - [issue]
...Currently, the unquoted string of a function identifier is being used as the function identifier in the function registry. This could cause the incorrect the behavior when users use `.` in t...
http://issues.apache.org/jira/browse/SPARK-20918    Author: Xiao Li , 2018-09-10, 03:33