[ https://issues.apache.org/jira/browse/CALCITE-5745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated CALCITE-5745: ------------------------------------ Labels: pull-request-available (was: ) > CONCAT2 function(enabled in Oracle library) gets wrong result when one of the > argument is NULL > ---------------------------------------------------------------------------------------------- > > Key: CALCITE-5745 > URL: https://issues.apache.org/jira/browse/CALCITE-5745 > Project: Calcite > Issue Type: Bug > Components: core > Affects Versions: 1.34.0 > Reporter: ZheHu > Assignee: ZheHu > Priority: Major > Labels: pull-request-available > > Tested CONCAT function in Oracle and got the corresponding results. > {code} > select concat('a', cast(null as varchar(20))) from DUAL; > --- results in 'a' > {code} > {code} > select concat('a', null) from DUAL; > select 'a' || null from DUAL; > --- both result in 'a' > {code} > In Calcite(see checkConcat2Func() in SqlOperatorTest.java), CONCAT2 function > gets null when running: > {code} > concat('a', cast(null as varchar)) > {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)