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https://issues.apache.org/jira/browse/DERBY-5466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick Hillegas updated DERBY-5466:
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Attachment: derby-5466-02-ab-bindLogic.diff
Attaching derby-5466-02-ab-bindLogic.diff. This second rev of the bind logic
patch removes privilege checking for the new builtin aggregates. Everyone is
allowed to run these aggregates. This patch adds a regression test to verify
that this is true. I will run full regression tests now.
Touches the following additional file:
M
java/testing/org/apache/derbyTesting/functionTests/tests/lang/UDAPermsTest.java
New test cases to verify that anyone can run var_pop(), var_samp(),
stddev_pop(), and stddev_samp().
> Add support for SQL Standard statistics functions, such as STDDEV_POP,
> STDDEV_SAMP, VAR_POP, VAR_SAMP
> -----------------------------------------------------------------------------------------------------
>
> Key: DERBY-5466
> URL: https://issues.apache.org/jira/browse/DERBY-5466
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 10.8.1.2
> Reporter: Lukas Eder
> Priority: Minor
> Labels: derby_triage10_10
> Attachments: DERBY-5466.stats.patch,
> derby-5466-01-aa-aggregatorClasses.diff, derby-5466-02-aa-bindLogic.diff,
> derby-5466-02-ab-bindLogic.diff, var_pop_formulas.txt
>
>
> Any of these RDBMS support the SQL standard statistics functions STDDEV_POP,
> STDDEV_SAMP, VAR_POP, VAR_SAMP:
> - DB2 (only STDDEV, VARIANE)
> - H2
> - HSQLDB
> - Ingres
> - MySQL
> - Oracle
> - Postgres
> - SQL Server (named STDEVP, STDEV, VARP, VAR)
> - Sybase ASE
> - Sybase SQL Anywhere
> These don't:
> - Derby
> - SQLite
> This would be a useful addition for Derby, I think.
> An even larger example list of possible statistics aggregate functions is
> listed in the Postgres documentation:
> http://www.postgresql.org/docs/9.0/static/functions-aggregate.html#FUNCTIONS-AGGREGATE-STATISTICS-TABLE
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