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[SPARK-24017] Refactor ExternalCatalog to be an interface - Spark - [issue]
...This refactors the external catalog to be an interface. It can be easier for the future work in the catalog federation....    Author: Xiao Li , 2018-05-07, 03:42
[SPARK-23921] High-order function: array_sort(x) → array - Spark - [issue]
...Ref: and returns the array x. The elements of x must be orderable. Null elements will be placed at the end of the returned array....    Author: Xiao Li , 2018-05-07, 06:25
[SPARK-23930] High-order function: slice(x, start, length) → array - Spark - [issue]
...Ref: array x starting from index start (or starting from the end if start is negative) with a length of length....    Author: Xiao Li , 2018-05-07, 07:58
[SPARK-23931] High-order function: array_zip(array1, array2[, ...]) → array<row> - Spark - [issue]
...Ref: the given arrays, element-wise, into a single array of rows. The M-th element of the N-th argument will be the N-th field of ...    Author: Xiao Li , 2018-06-25, 03:16
[SPARK-23916] High-order function: array_join(x, delimiter, null_replacement) → varchar - Spark - [issue]
...Ref: the elements of the given array using the delimiter and an optional string to replace nulls....    Author: Xiao Li , 2018-06-25, 10:48
[SPARK-23934] High-order function: map_from_entries(array<row<K, V>>) → map<K,V> - Spark - [issue]
...Ref: a map created from the given array of entries.SELECT map_from_entries(ARRAY[(1, 'x'), (2, 'y')]); -- {1 -> 'x', 2 -> 'y'...    Author: Xiao Li , 2018-06-22, 07:19
[SPARK-23927] High-order function: sequence - Spark - [issue]
...Ref: sequence(start, stop) → array<bigint>Generate a sequence of integers from start to stop, incrementing by 1 if start is less t...    Author: Xiao Li , 2018-06-27, 03:21
[SPARK-24696] ColumnPruning rule fails to remove extra Project - Spark - [issue]
...The following test case would cause a "max iterations reached" error, i.e., an infinite loop in the optimizer.   test("optimization infinite loop") {    withTempDir { dir =>...    Author: Xiao Li , 2018-06-30, 06:59
[SPARK-23920] High-order function: array_remove(x, element) → array - Spark - [issue]
...Ref: all elements that equal element from array x....    Author: Xiao Li , 2018-06-01, 05:05
[SPARK-23900] format_number udf should take user specifed format as argument - Spark - [issue]
..., format_number udf formats the number to #,###,###.##, but it should also take a user specified format as optional input....    Author: Xiao Li , 2018-05-31, 18:39