[ https://issues.apache.org/jira/browse/CALCITE-2382?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
pengzhiwei updated CALCITE-2382: -------------------------------- Attachment: 屏幕快照 2018-06-27 下午12.39.46.png > Column not found when subquery join lateral table function > ---------------------------------------------------------- > > Key: CALCITE-2382 > URL: https://issues.apache.org/jira/browse/CALCITE-2382 > Project: Calcite > Issue Type: Bug > Components: core > Affects Versions: 1.16.0 > Reporter: pengzhiwei > Assignee: Julian Hyde > Priority: Critical > Attachments: 屏幕快照 2018-06-27 下午12.39.46.png > > > When using subquery join lateral table function as followed: > > {code:java} > select * from ( select 5 as f0 from s.t ) a,lateral > table(s.GenerateStrings(f0)) as t(n, c) where char_length(c) > 3 > {code} > 'SqlValidatorException: Column 'F0' not found in any table' was thrown out. > I find the reason is that SqlValidatorImpl add the namespace of Identifier > 's.t' to the children of tableScope,but not the subquey's namespace,just as > the code show bellow in SqlValidatorImpl#registerFrom: > {code:java} > case IDENTIFIER: > ........... > if (tableScope == null) { > tableScope = new TableScope(parentScope, node); > } > tableScope.addChild(newNs, alias, forceNullable);{code} > I think the namespace of JoinScope's left child should be the children of > tableScope which was referenced by the table function,just as the code show > bellow in SqlValidatorImpl#registerFrom: > {code:java} > case COLLECTION_TABLE: > .... > TableScope tableScope = null; > if(parentScope instanceof JoinScope) { > tableScope = new TableScope(new EmptyScope(this),operand); > JoinScope scope = (JoinScope) parentScope; > SqlValidatorNamespace leftNs = scope.getChildren().get(0); > tableScope.addChild(leftNs,scope.children.get(0).name,forceNullable); > } > ....{code} > After this modification,the case upon runs well. > Is there any problem for this modification? Any suggestions is > welcomed.Thanks a lot. > > > > -- This message was sent by Atlassian JIRA (v7.6.3#76005)