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Julian Hyde commented on CALCITE-3217: -------------------------------------- Probably a duplicate of CALCITE-3081. > Should Calcite support "select null"? > -------------------------------------- > > Key: CALCITE-3217 > URL: https://issues.apache.org/jira/browse/CALCITE-3217 > Project: Calcite > Issue Type: Improvement > Components: core > Reporter: Xurenhe > Priority: Minor > Attachments: Jietu20190728-221651.jpg > > > > Should Calcite need to support "select null", such as: > {code:java} > select null;{code} > In the version of "1.20.0", it throws exception in > `org.apache.calcite.sql.validate.SqlValidatorImpl#inferUnknownTypes`. > -- This message was sent by Atlassian JIRA (v7.6.14#76016)