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Posted to issues@ignite.apache.org by "Evgeny Stanilovsky (Jira)" <ji...@apache.org> on 2022/12/09 12:57:00 UTC

[jira] [Created] (IGNITE-18361) Sql. Unexpected type of result: NULL

Evgeny Stanilovsky created IGNITE-18361:
-------------------------------------------

             Summary: Sql. Unexpected type of result: NULL
                 Key: IGNITE-18361
                 URL: https://issues.apache.org/jira/browse/IGNITE-18361
             Project: Ignite
          Issue Type: Bug
          Components: sql
    Affects Versions: 3.0.0-beta1
            Reporter: Evgeny Stanilovsky


Some queries can`t be correctly processed:
SELECT MIN(NULL) will throw :

{code:java}
Caused by: java.lang.AssertionError: Unexpected type of result: NULL
	at org.apache.ignite.internal.sql.engine.util.TypeUtils.columnType(TypeUtils.java:343)
{code}

Seems fix is trivial : we need to append additional type into *SqlColumnType*
            case NULL:
                return Void.class;
and support it into :
TypeUtils#columnType



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