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https://issues.apache.org/jira/browse/CALCITE-5127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17609437#comment-17609437
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Dmitry Sysolyatin edited comment on CALCITE-5127 at 9/26/22 11:04 AM:
----------------------------------------------------------------------
I found more failing queries and PR in this task does not help. I do not know
if I should to create separate task for them:
{code:java}
SELECT (SELECT json_object('1': (a.attidentity = 'a'), '2': v) FROM
UNNEST(ARRAY[1]) as v) as options
FROM UNNEST(ARRAY['a', 'b']) AS a(attidentity);
{code}
Fails with
{code:java}
java.lang.AssertionError: No assign rules for SYMBOL defined
.........
org.apache.calcite.sql2rel.RelDecorrelator$RemoveCorrelationRexShuttle.createCaseExpression(RelDecorrelator.java:1731)
{code}
{code}
SELECT (SELECT a.attidentity = 'a', v FROM UNNEST(ARRAY[1]) as v) as options
FROM UNNEST(ARRAY['a', 'b']) AS a(attidentity);
{code}
Fails with
{code:java}
Cannot apply '$SCALAR_QUERY' to arguments of type
'$SCALAR_QUERY(<RECORDTYPE(BOOLEAN EXPR$0, INTEGER V)>)'. Supported form(s):
'$SCALAR_QUERY(<RECORDTYPE(SINGLE FIELD)>)'
{code}
was (Author: dmsysolyatin):
I found more failing queries and PR in this task does not help. I do not know
if I should to create separate task for them:
{code:java}
SELECT (SELECT json_object('1': (a.attidentity = 'a'), '2': v) FROM
UNNEST(ARRAY[1]) as v) as options
FROM UNNEST(ARRAY['a', 'b']) AS a(attidentity);
{code}
Fails with
{code:java}
java.lang.AssertionError: No assign rules for SYMBOL defined
.........
org.apache.calcite.sql2rel.RelDecorrelator$RemoveCorrelationRexShuttle.createCaseExpression(RelDecorrelator.java:1731)
{code}
```
SELECT (SELECT a.attidentity = 'a', v FROM UNNEST(ARRAY[1]) as v) as options
FROM UNNEST(ARRAY['a', 'b']) AS a(attidentity);
```
Fails with
{code:java}
Cannot apply '$SCALAR_QUERY' to arguments of type
'$SCALAR_QUERY(<RECORDTYPE(BOOLEAN EXPR$0, INTEGER V)>)'. Supported form(s):
'$SCALAR_QUERY(<RECORDTYPE(SINGLE FIELD)>)'
{code}
> Error when executing query with correlated sub-query in SELECT clause
> ---------------------------------------------------------------------
>
> Key: CALCITE-5127
> URL: https://issues.apache.org/jira/browse/CALCITE-5127
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Dmitry Sysolyatin
> Assignee: Benchao Li
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.33.0
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> The following queries fail:
> {code}
> SELECT ARRAY(SELECT s.x) FROM (SELECT ARRAY[1,2,3] as x) s;
> SELECT ARRAY(SELECT * FROM UNNEST(s.x) y) FROM (SELECT ARRAY[1,2,3] as x) s;
> SELECT (SELECT CARDINALITY(s.x) LIMIT 1) FROM (SELECT ARRAY[1,2,3] as x) s;
>
> {code}
> With exception:
> {code}
> Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to
> java.util.List
> {code}
> You can find test cases for this task in
> https://github.com/apache/calcite/commit/27e68ded2c3bea7d7af73dd1dc156e46fb3591a8
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