[ https://issues.apache.org/jira/browse/DERBY-4644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Knut Anders Hatlen resolved DERBY-4644.
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Resolution: Duplicate
I believe this bug has been fixed by DERBY-4376. Resolving as a duplicate. Please reopen if
that didn't fix this issue.
The problematic query in DERBY-4376 was a different one: "select * from t where x=? or x=?".
However, it is rewritten internally to "select * from t where x in (?,?)" which is the same
as the query in this report.
> Sql query "select * from tablename where column1 in (?,?)" never ends when no parameter
value have been set to PreparedStatement.
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-4644
> URL: https://issues.apache.org/jira/browse/DERBY-4644
> Project: Derby
> Issue Type: Bug
> Components: JDBC
> Affects Versions: 10.5.3.0
> Environment: window xp; jdk1.5
> Reporter: xiaofeng.zhang
>
> Reproduce steps:
> 1. Create a PreparedStatement with sql text "select * from tablename where column1 in
(?,?)".
> 2. Call JDBC PreparedStatement .executeQuery( ) to execute this statement and it never
stop. I found my CPU Usage is 100% after this happened.
> More info:
> 1. The SQL like "select * from tablename where column1 in (?)" can return an empty result
set
> 2. If call PreparedStatement .setInt( 1,1 ) to set a parameter value the query can work
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