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https://issues.apache.org/jira/browse/TAJO-1754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14695258#comment-14695258
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Hudson commented on TAJO-1754:
------------------------------
SUCCESS: Integrated in Tajo-master-build #798 (See
[https://builds.apache.org/job/Tajo-master-build/798/])
TAJO-1754: Implement several functions to handle json array. (jihoonson: rev
9114485b594b89616f240267fc3b3cf5d2a02370)
* tajo-docs/src/main/sphinx/functions/json_func.rst
*
tajo-core/src/main/java/org/apache/tajo/engine/function/json/ScalarJsonFunction.java
* CHANGES
*
tajo-core/src/main/java/org/apache/tajo/engine/function/json/JsonArrayContains.java
* tajo-core/src/test/java/org/apache/tajo/engine/function/TestJsonFunctions.java
* tajo-core/src/main/java/org/apache/tajo/engine/function/json/JsonArrayGet.java
*
tajo-core/src/main/java/org/apache/tajo/engine/function/json/JsonExtractPathText.java
*
tajo-core/src/main/java/org/apache/tajo/engine/function/json/JsonArrayLength.java
> Implement several functions to handle json array
> ------------------------------------------------
>
> Key: TAJO-1754
> URL: https://issues.apache.org/jira/browse/TAJO-1754
> Project: Tajo
> Issue Type: Sub-task
> Components: Function/UDF
> Reporter: Jihoon Son
> Assignee: Jihoon Son
> Fix For: 0.11.0
>
>
> h4. json_array_get
> {noformat}
> SELECT json_array_get('["a", "b", "c"]', 0); => "a"
> SELECT json_array_get('["a", "b", "c"]', 1); => "b"
> SELECT json_array_get('["c", "b", "a"]', -1); => "a"
> SELECT json_array_get('["c", "b", "a"]', -2); => "b"
> SELECT json_array_get('[]', 0); => null
> SELECT json_array_get('["a", "b", "c"]', 10); => null
> SELECT json_array_get('["c", "b", "a"]', -10); => null
> {noformat}
> h4. json_array_contains
> {noformat}
> SELECT json_array_contains('[1, 2, 3]', 2);
> {noformat}
> h4. json_array_length
> {noformat}
> SELECT json_array_length('[1, 2, 3]');
> {noformat}
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