[jira] [Comment Edited] (CALCITE-5042) Incorrect syntax in sub-query

["Julian Hyde (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-5042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17506518#comment-17506518 ] 

Julian Hyde edited comment on CALCITE-5042 at 3/14/22, 8:17 PM:
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[~rrrrrr111] Please use "\{code}" rather than "{{" for code blocks. And 
"\{noformat}" for error message. See [https://jira.atlassian.com/secure/WikiRendererHelpAction.jspa?section=all].


was (Author: julianhyde):
[~rrrrrr111] Please use "\{code\}" rather than "{{" for code blocks. See https://jira.atlassian.com/secure/WikiRendererHelpAction.jspa?section=all. 

> Incorrect syntax in sub-query
> -----------------------------
>
>                 Key: CALCITE-5042
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5042
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.29.0
>            Reporter: Roman Churganov
>            Priority: Blocker
>
> Execute query like: 
> {{SELECT f.id FROM sch1.foo as f}}
> {{   JOIN sch1.foo br ON br.id = f.id  }}
> {{   JOIN sch1.baz bz ON bz.id = br.id }}
> {{   WHERE f.id = '0'}}
> {{Calcite prepares SQL using JDBC adapter like: }}
> {{SELECT "t1"."ID" FROM ( SELECT "ID" FROM "BAZ" ) AS "t"}}
>    INNER JOIN ( 
> {{         ( SELECT "ID" FROM "FOO" WHERE "ID" = '0') AS "t1"}}
> {{             INNER JOIN (SELECT "ID" FROM "FOO") AS "t2" }}{{     }}
> {{           ON "t1"."ID" = "t2"."ID"}}
> {{) ON "t"."ID" = "t2"."ID" }}
> which seem like have incorrect sub-query, though most of the databases can execute it, but Caclite itself cannot parse and gives error like:
> Caused by: org.apache.calcite.sql.parser.impl.ParseException: Encountered "AS" at line 3, column 88.
> Was expecting one of:
>     "EXCEPT" ...
>     "FETCH" ...
>     "INTERSECT" ...
>     "LIMIT" ...
>     "OFFSET" ...
>     "ORDER" ...
>     "MINUS" ...
>     "UNION" ...
>     ")" ...
>     "." ...
>     "NOT" ...
>     "IN" ...
> {{see example [https://www.db-fiddle.com/f/oCr3VKkT2QmKgWro54Wzfc/4]  }}
>  



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