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Posted to issues@trafodion.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/06/07 08:13:00 UTC

[jira] [Commented] (TRAFODION-3099) Prepare execute fails to handle N'', _iso88591'', _utf8'' for a nchar column

    [ https://issues.apache.org/jira/browse/TRAFODION-3099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16504389#comment-16504389 ] 

ASF GitHub Bot commented on TRAFODION-3099:
-------------------------------------------

GitHub user gdgy opened a pull request:

    https://github.com/apache/trafodion/pull/1595

    TRAFODION-3099

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/gdgy/trafodion TRAFODION-3099

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/trafodion/pull/1595.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1595
    
----
commit 3bec830f9933a5a647afbc0f278e7dd39f8c0c34
Author: shaoyong.li <li...@...>
Date:   2018-06-07T08:08:57Z

    TRAFODION-3099

----


> Prepare execute fails to handle N'<string>', _iso88591'<string>', _utf8'<string>' for a nchar column
> ----------------------------------------------------------------------------------------------------
>
>                 Key: TRAFODION-3099
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-3099
>             Project: Apache Trafodion
>          Issue Type: Bug
>            Reporter: shaoyong.li
>            Assignee: shaoyong.li
>            Priority: Major
>
> As shown below, for a nchar column c1 with a value of N'ABCD' in the table t, a direct select from t with predicates c1=N'ABCD', c1='ABCD', c1=_iso88591'ABCD', and c1=_utf8'ABCD' all are able to find the match. However, with a prepared query xx executed using a parameter ? in sqlci and trafci operator have failed.
> From sqlci:
>  >>drop table if exists t;
>  
>  --- SQL operation complete.
>  >>create table t (c1 nchar(10));
>  
>  --- SQL operation complete.
>  >>insert into t values (N'ABCD');
>  
>  --- 1 row(s) inserted.
>  >>select * from t;
>  
>  C1
>  --------------------
>  
>  ABCD
>  
>  --- 1 row(s) selected.
>  >>select * from t where c1=N'ABCD';
>  
>  C1
>  --------------------
>  
>  ABCD
>  
>  --- 1 row(s) selected.
>  >>select * from t where c1='ABCD';
>  
>  C1
>  --------------------
>  
>  ABCD
>  
>  --- 1 row(s) selected.
>  >>select * from t where c1=_iso88591'ABCD';
>  
>  C1
>  --------------------
>  
>  ABCD
>  
>  --- 1 row(s) selected.
>  >>select * from t where c1=_utf8'ABCD';
>  
>  C1
>  --------------------
>  
>  ABCD
>  
>  --- 1 row(s) selected.
>  >>
>  >>prepare xx from select * from t where c1=?;
>  
>  --- SQL command prepared.
>  >>execute xx using N'ABCD';
>  
>  --- 0 row(s) selected.
>  >>execute xx using 'ABCD';
>  
>  C1
>  --------------------
>  
>  ABCD
>  
>  --- 1 row(s) selected.
>  >>execute xx using _iso88591'ABCD';
>  
>  C1
>  --------------------
>  
>  ABCD
>  
>  --- 1 row(s) selected.
>  >>execute xx using _utf8'ABCD';
>  
>  C1
>  --------------------
>  
>  ABCD
>  
>  --- 1 row(s) selected.
>  
>  From trafci:
>  
>  trafci sees even more failures:
>  
>  $ trafci
>  
>  Welcome to EsgynDB Command Interface
>  Copyright (c) 2015-2018 Esgyn Corporation
>  
>  User Name: db__root
>  Host Name/IP Address: localhost:23400
>  
>  Connected to EsgynDB Advanced
>  
>  SQL>obey mytest.sql;
>  
>  SQL>drop table if exists t;
>  
>  --- SQL operation complete.
>  
>  SQL>create table t (c1 nchar(10));
>  
>  --- SQL operation complete.
>  
>  SQL>insert into t values (N'ABCD');
>  
>  --- 1 row(s) inserted.
>  
>  SQL>select * from t;
>  
>  C1
>  --------------------
>  ABCD
>  
>  --- 1 row(s) selected.
>  
>  SQL>select * from t where c1=N'ABCD';
>  
>  C1
>  --------------------
>  ABCD
>  
>  --- 1 row(s) selected.
>  
>  SQL>select * from t where c1='ABCD';
>  
>  C1
>  --------------------
>  ABCD
>  
>  --- 1 row(s) selected.
>  
>  SQL>select * from t where c1=_iso88591'ABCD';
>  
>  C1
>  --------------------
>  ABCD
>  
>  --- 1 row(s) selected.
>  
>  SQL>select * from t where c1=_utf8'ABCD';
>  
>  C1
>  --------------------
>  ABCD
>  
>  --- 1 row(s) selected.
>  
>  SQL>prepare xx from select * from t where c1=?;
>  
>  --- SQL command prepared.
>  
>  SQL>execute xx using N'ABCD';
>  
>  --- 0 row(s) selected.
>  
>  SQL>execute xx using 'ABCD';
>  
>  C1
>  --------------------
>  ABCD
>  
>  --- 1 row(s) selected.
>  
>  SQL>execute xx using _iso88591'ABCD';
>  
>  *** ERROR[29183] Invalid Parameter Value: CHAR input data is longer than the length for column: 0
>  
>  SQL>execute xx using _utf8'ABCD';
>  
>  *** ERROR[29183] Invalid Parameter Value: CHAR input data is longer than the length for column: 0
>  



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