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https://issues.apache.org/jira/browse/CALCITE-5369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-5369:
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Description:
In Avatica DateTimeUtils, add support for computing the FLOOR and CEIL of a
date to ISOYEAR.
For example:
* {{FLOOR(DATE '1900-01-01' TO ISOYEAR)}} should return {{DATE '1900-01-01'}}
(because 1900-01-01 is a Monday and an ISO year starts on a Monday)
* {{FLOOR(DATE '1901-01-01' TO ISOYEAR)}} should return {{DATE '1900-12-31'}}
(because 1901-01-01 is a Tuesday and 1900-12-31 is the preceding Monday)
* {{FLOOR(DATE '1903-01-01' TO ISOYEAR)}} should return {{DATE '1903-12-31'}}
(because 1903-01-01 is a Thursday)
was:In Avatica DateTimeUtils, add support for computing the FLOOR and CEIL of
a date to ISOYEAR.
> In Avatica DateTimeUtils, add support for FLOOR and CEIL to ISOYEAR
> -------------------------------------------------------------------
>
> Key: CALCITE-5369
> URL: https://issues.apache.org/jira/browse/CALCITE-5369
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Reporter: Julian Hyde
> Priority: Major
> Fix For: avatica-1.23.0
>
>
> In Avatica DateTimeUtils, add support for computing the FLOOR and CEIL of a
> date to ISOYEAR.
> For example:
> * {{FLOOR(DATE '1900-01-01' TO ISOYEAR)}} should return {{DATE '1900-01-01'}}
> (because 1900-01-01 is a Monday and an ISO year starts on a Monday)
> * {{FLOOR(DATE '1901-01-01' TO ISOYEAR)}} should return {{DATE '1900-12-31'}}
> (because 1901-01-01 is a Tuesday and 1900-12-31 is the preceding Monday)
> * {{FLOOR(DATE '1903-01-01' TO ISOYEAR)}} should return {{DATE '1903-12-31'}}
> (because 1903-01-01 is a Thursday)
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