Norman Jordan created CALCITE-6392:
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Summary: Support all PostgreSQL 14 date/time patterns for
to_date/to_timestamp
Key: CALCITE-6392
URL: https://issues.apache.org/jira/browse/CALCITE-6392
Project: Calcite
Issue Type: Sub-task
Reporter: Norman Jordan
Assignee: Norman Jordan
Many of the date/time format patterns supported by PostgreSQL 14 are not
supported in Calcite.
* HH
* US
* SSSS
* SSSSS
* AM
* A.M.
* am
* a.m.
* PM
* P.M.
* pm
* p.m.
* Y,YYY
* YYY
* Y
* IYYY
* IYY
* IY
* I
* BC
* B.C.
* bc
* b.c.
* AD
* A.D.
* ad
* a.d.
* MONTH
* month
* MON
* mon
* DAY
* day
* Dy
* dy
* IDDD
* ID
* TZH
* TZM
* OF
There are also template pattern modifiers that need to be supported.
* FM (prefix)
* TH (suffix)
* th (suffix)
* FX (prefix)
* TM (prefix)
Some format patterns in Calcite behave differently from PostgreSQL 14.
* FF1
* FF2
* FF4
* FF5
* FF6
Also verify that the other existing format strings produce results that match
PostgreSQL 14.
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