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Posted to derby-dev@db.apache.org by "Kathey Marsden (JIRA)" <ji...@apache.org> on 2007/07/19 17:03:06 UTC

[jira] Created: (DERBY-2956) With a collated database USER cannot be used in query against user tables without cast

With a collated database USER cannot be used in query against user tables without cast
--------------------------------------------------------------------------------------

                 Key: DERBY-2956
                 URL: https://issues.apache.org/jira/browse/DERBY-2956
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.4.0.0
            Reporter: Kathey Marsden


ij> create table staff (empname varchar(30));
0 rows inserted/updated/deleted
ij> insert into staff values('APP');
1 row inserted/updated/deleted
ij> insert into staff values('KATHEY');
1 row inserted/updated/deleted
ij> select * from staff where empname like USER;
ERROR 42ZA2: Operand of LIKE predicate with type VARCHAR(30) and collation TERRITORY_BASED is not compatable with LIKE p
attern operand with type VARCHAR(128) and collation UCS_BASIC.
ij>

Workaround is to use a cast 

ij>  select * from staff where empname like CAST(USER as VARCHAR(30));
EMPNAME
------------------------------
APP

1 row selected


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[jira] Resolved: (DERBY-2956) With a collated database USER cannot be used in query against user tables without cast

Posted by "Kathey Marsden (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-2956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kathey Marsden resolved DERBY-2956.
-----------------------------------

    Resolution: Invalid

Mamta says this is expected behavour but it will mean that the Nist tests won't pass with a collated database.

> With a collated database USER cannot be used in query against user tables without cast
> --------------------------------------------------------------------------------------
>
>                 Key: DERBY-2956
>                 URL: https://issues.apache.org/jira/browse/DERBY-2956
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.4.0.0
>            Reporter: Kathey Marsden
>
> ij> create table staff (empname varchar(30));
> 0 rows inserted/updated/deleted
> ij> insert into staff values('APP');
> 1 row inserted/updated/deleted
> ij> insert into staff values('KATHEY');
> 1 row inserted/updated/deleted
> ij> select * from staff where empname like USER;
> ERROR 42ZA2: Operand of LIKE predicate with type VARCHAR(30) and collation TERRITORY_BASED is not compatable with LIKE p
> attern operand with type VARCHAR(128) and collation UCS_BASIC.
> ij>
> Workaround is to use a cast 
> ij>  select * from staff where empname like CAST(USER as VARCHAR(30));
> EMPNAME
> ------------------------------
> APP
> 1 row selected

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[jira] Closed: (DERBY-2956) With a collated database USER cannot be used in query against user tables without cast

Posted by "Kathey Marsden (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-2956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kathey Marsden closed DERBY-2956.
---------------------------------


> With a collated database USER cannot be used in query against user tables without cast
> --------------------------------------------------------------------------------------
>
>                 Key: DERBY-2956
>                 URL: https://issues.apache.org/jira/browse/DERBY-2956
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.4.0.0
>            Reporter: Kathey Marsden
>
> ij> create table staff (empname varchar(30));
> 0 rows inserted/updated/deleted
> ij> insert into staff values('APP');
> 1 row inserted/updated/deleted
> ij> insert into staff values('KATHEY');
> 1 row inserted/updated/deleted
> ij> select * from staff where empname like USER;
> ERROR 42ZA2: Operand of LIKE predicate with type VARCHAR(30) and collation TERRITORY_BASED is not compatable with LIKE p
> attern operand with type VARCHAR(128) and collation UCS_BASIC.
> ij>
> Workaround is to use a cast 
> ij>  select * from staff where empname like CAST(USER as VARCHAR(30));
> EMPNAME
> ------------------------------
> APP
> 1 row selected

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[jira] Commented: (DERBY-2956) With a collated database USER cannot be used in query against user tables without cast

Posted by "Mamta A. Satoor (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/DERBY-2956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12513931 ] 

Mamta A. Satoor commented on DERBY-2956:
----------------------------------------

Kathey, USER is defined to take the collation of UCS_BASIC. Here is the relevant informaiton copied from http://wiki.apache.org/db-derby/BuiltInLanguageBasedOrderingDERBY-1478 (note that USER is a synonym for CURRENT_USER)

9)For CURRENT_USER, SESSION_USER, SYSTEM_USER, SQL spec Section 6.4 Syntax Rule 4 says that their collation type is the collation of character set SQL_IDENTIFIER. In Derby's case, that will mean, the collation of these functions will be UCS_BASIC. The collation derivation will be implicit. 

> With a collated database USER cannot be used in query against user tables without cast
> --------------------------------------------------------------------------------------
>
>                 Key: DERBY-2956
>                 URL: https://issues.apache.org/jira/browse/DERBY-2956
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.4.0.0
>            Reporter: Kathey Marsden
>
> ij> create table staff (empname varchar(30));
> 0 rows inserted/updated/deleted
> ij> insert into staff values('APP');
> 1 row inserted/updated/deleted
> ij> insert into staff values('KATHEY');
> 1 row inserted/updated/deleted
> ij> select * from staff where empname like USER;
> ERROR 42ZA2: Operand of LIKE predicate with type VARCHAR(30) and collation TERRITORY_BASED is not compatable with LIKE p
> attern operand with type VARCHAR(128) and collation UCS_BASIC.
> ij>
> Workaround is to use a cast 
> ij>  select * from staff where empname like CAST(USER as VARCHAR(30));
> EMPNAME
> ------------------------------
> APP
> 1 row selected

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