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Benchao Li updated CALCITE-5510: -------------------------------- Summary: RelToSqlConverter should use ordinal for ORDER BY if the dialect allows (was: RelToSqlConverter don't support sort by ordinal when sort by column is a expression) > RelToSqlConverter should use ordinal for ORDER BY if the dialect allows > ----------------------------------------------------------------------- > > Key: CALCITE-5510 > URL: https://issues.apache.org/jira/browse/CALCITE-5510 > Project: Calcite > Issue Type: Improvement > Components: core > Affects Versions: 1.26.0 > Reporter: peng wang > Assignee: peng wang > Priority: Major > Labels: pull-request-available > Fix For: 1.34.0 > > Time Spent: 3h > Remaining Estimate: 0h > > For example: > Query SQL isĀ > {code:java} > select a, sum(b) from table group by a order by 2{code} > When we convert this sql to relNode and convert it back to SQL by > RelToConverter, the result is: > {code:java} > select a, sum(b) from table group by a order by sum(b){code} > But we want to keep order by column to ordinal. > Would we add a switch in RelToConverter to control whether convert sort by > column to expression or ordinal? > Maybe we can use method isSortByOrdinal in dialect SqlConformance? -- This message was sent by Atlassian Jira (v8.20.10#820010)