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[jira] [Created] (CALCITE-2276) Calcite unable to parse ROW value constructor in certain scenario


Shuyi Chen created CALCITE-2276:
-----------------------------------

             Summary: Calcite unable to parse ROW value constructor in certain scenario
                 Key: CALCITE-2276
                 URL: https://issues.apache.org/jira/browse/CALCITE-2276
             Project: Calcite
          Issue Type: Bug
          Components: core
            Reporter: Shuyi Chen
            Assignee: Julian Hyde


h2. Original dev mailing list question:

Now for our production, we can parse a query successfully like this :

-- correlated IN subquery
-- TC 01.01
SELECT t1a,
       t1b,
       t1h
FROM   t1
WHERE  ( t1a, t1h ) NOT IN (SELECT t2a,
                                   t2h
                            FROM   t2
                            WHERE  t2a = t1a
                            ORDER  BY t2a)
AND t1a = 'val1a'


but if we add in `Row`:

-- correlated IN subquery
-- TC 01.01
SELECT t1a,
       t1b,
       t1h
FROM   t1
WHERE  ROW( t1a, t1h ) NOT IN (SELECT t2a,
                                   t2h
                            FROM   t2
                            WHERE  t2a = t1a
                            ORDER  BY t2a)
AND t1a = 'val1a'



 it will throw exception:

Caused by: org.apache.calcite.sql.parser.SqlParseException: ROW expression
encountered in illegal context
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.convertException(SqlParserImpl.java:351)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.normalizeException(SqlParserImpl.java:133)
at org.apache.calcite.sql.parser.SqlParser.parseQuery(SqlParser.java:138)
at org.apache.calcite.sql.parser.SqlParser.parseStmt(SqlParser.java:163)
at
org.apache.flink.table.calcite.FlinkPlannerImpl.parse(FlinkPlannerImpl.scala:81)
... 8 more

For the success query, if we exec parsed AST tree rootNode.toString(), it
will return a query like:

SELECT `t1a`,
       `t1b`,
       `t1h`
FROM `t1`
WHERE ROW(`t1a`, `t1h`) NOT IN (SELECT `t2a`, `t2h`
                                FROM `t2`
                                WHERE `t2a` = `t1a`
                                ORDER BY `t2a`)
AND `t1a` = 'val1a'


This is inconsistent  by Calcite itself semantic.



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