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https://issues.apache.org/jira/browse/CALCITE-1177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15227452#comment-15227452
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Venki Korukanti commented on CALCITE-1177:
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Thanks Julian for reviewing.
bq. - Can you make the multiplier null for DOW, DOY, EPOCH?
bq. - s/to use it internally/to use internally
Updated [PR|https://github.com/apache/calcite/pull/219]
For others I have the wip patch
[here|https://github.com/vkorukanti/calcite/commits/CALCITE-1177]. Currently I
can't even compile with 1.8.0-SNAPSHOT of avatica as there are some breaking
changes in current avatica compared to 1.7.0 version. I was hoping to get the
first patch in and once a new version of avatica is available and core is
updated to use the new version, submit the second patch which includes parser
changes and tests.
> Add support for more time units in extract function
> ---------------------------------------------------
>
> Key: CALCITE-1177
> URL: https://issues.apache.org/jira/browse/CALCITE-1177
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Venki Korukanti
> Assignee: Julian Hyde
>
> Currently extract function support following units YEAR, MONTH, DAY, HOUR,
> MINUTE, SECOND. Add support for more units: CENTURY, DECADE, DOW, DOY, EPOCH,
> MILLENNIUM, QUARTER, WEEK.
> Definitions of these units is similar to Postgres:
> http://www.postgresql.org/docs/9.1/static/functions-datetime.html#FUNCTIONS-DATETIME-EXTRACT
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