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https://issues.apache.org/jira/browse/TRAFODION-2520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15898654#comment-15898654
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ASF GitHub Bot commented on TRAFODION-2520:
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Github user liuyu000 commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/990#discussion_r104579867
--- Diff: docs/sql_reference/src/asciidoc/_chapters/olap_functions.adoc ---
@@ -133,12 +145,21 @@ GROUP BY num, workgroupnum, annualsalary;
[[limitations_for_window_functions]]
== Limitations for Window Functions
-These limitations apply to all window functions.
+Trafodion supports many ANSI compliant OLAP window functions. These
functions include AVG, COUNT, DENSE_RANK, MAX, MIN, RANK, ROW_NUMBER, STDDEV,
SUM, and VARIANCE. However, Trafodion imposes certain limitations on all window
functions.
--- End diff --
Thanks Hans.
Your comment has been incorporated. :)
> Add details for OLAP function + Add LEAD, LAG, FIRST_VALUE & LAST_VALUE
> window functions
> ----------------------------------------------------------------------------------------
>
> Key: TRAFODION-2520
> URL: https://issues.apache.org/jira/browse/TRAFODION-2520
> Project: Apache Trafodion
> Issue Type: Documentation
> Reporter: Liu Yu
> Assignee: Liu Yu
>
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