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https://issues.apache.org/jira/browse/CALCITE-1636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15873748#comment-15873748
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Jess Balint commented on CALCITE-1636:
--------------------------------------
Fixed in
http://git-wip-us.apache.org/repos/asf/calcite/commit/f7d29063b3a323b21968125f5aea16a0d33a39e6.
Thanks for the PR, Zhiqiang He!
> JDBC adapter generates wrong SQL for self join with sub-query
> -------------------------------------------------------------
>
> Key: CALCITE-1636
> URL: https://issues.apache.org/jira/browse/CALCITE-1636
> Project: Calcite
> Issue Type: Bug
> Components: jdbc-adapter
> Affects Versions: 1.11.0
> Reporter: Zhiqiang He
> Assignee: Zhiqiang He
>
> JDBC adapter generates wrong SQL when selft join with subquery when DB2
> dialect used .
> input sql
> {code:sql}
> select t1."customer_id", t2."customer_id"
> from (select "customer_id" from "sales_fact_1997") as t1
> inner join (select "customer_id" from "sales_fact_1997") t2
> on t1."customer_id" = t2."customer_id"
> {code}
> output sql
> {code:sql}
> SELECT *
> FROM (SELECT sales_fact_1997.customer_id
> FROM foodmart.sales_fact_1997 AS sales_fact_1997) AS t
> INNER JOIN (SELECT sales_fact_19970.customer_id
> FROM foodmart.sales_fact_1997 AS sales_fact_19970) AS t0 ON
> sales_fact_1997.product_id = sales_fact_19970.product_id
> {code}
> sales_fact_1997.product_id = sales_fact_19970.product_id is wrong, can not
> found tables sales_fact_1997 and sales_fact_19970 in ON condition.
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