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Julian Hyde commented on CALCITE-1798: -------------------------------------- Thanks! > In JDBC adapter, generate dialect-specific SQL for FLOOR operator > ----------------------------------------------------------------- > > Key: CALCITE-1798 > URL: https://issues.apache.org/jira/browse/CALCITE-1798 > Project: Calcite > Issue Type: Bug > Components: jdbc-adapter > Reporter: Chris Baynes > Assignee: Julian Hyde > Labels: dialect > Fix For: 1.13.0 > > > The FLOOR operator (on dates) is currently broken for all jdbc dialects. > The syntax allowed by the parser looks like: "FLOOR(datetime to timeUnit)". > However no jdbc dialect (as far as I'm aware) actually name the function > FLOOR: > In postgres: DATE_TRUNC('year', my_datetime) > In hsqldb: TRUNC ( my_datetime, 'YYYY' ) > In oracle: TRUNC(my_datetime, 'YEAR') > In mysql: There's no direct equivalent in mysql (though it could be emulated > with some nasty timestamp diffing) > The other issue is that the timeUnits are sometimes also named differently by > each dialect (e.g. 'YYYY' in hsqldb). -- This message was sent by Atlassian JIRA (v6.4.14#64029)