Subject RE: [IBO] Error when using UTF8 charset during metadata queries?
Author Jason Wharton
I don't know what to do about this issue.
It seems there is a need of some kind of transliteration.
Where do we look first?

Jason

> -----Original Message-----
> From: IBObjects@yahoogroups.com [mailto:IBObjects@yahoogroups.com]On
> Behalf Of Martijn Tonies
> Sent: Friday, February 23, 2007 3:20 AM
> To: ibobjects@yahoogroups.com
> Subject: [IBO] Error when using UTF8 charset during metadata queries?
>
>
> Hi Jason,
>
> I'm connecting via Database Workbench to an UTF8 charset database.
>
> When I do this:
> select
> *
> from
> UTF8TEST
>
> in a (wrapped) TIBODataset, I get:
> arithmetic exception, numeric overflow, or string truncation
>
> with a trace of:
> SELECT S.RDB$FIELD_NAME
> , I.RDB$RELATION_NAME
> FROM RDB$RELATION_CONSTRAINTS C
> , RDB$INDICES I
> , RDB$INDEX_SEGMENTS S
> WHERE C.RDB$CONSTRAINT_TYPE = 'PRIMARY KEY'
> AND C.RDB$RELATION_NAME = I.RDB$RELATION_NAME
> AND C.RDB$INDEX_NAME = I.RDB$INDEX_NAME
> AND I.RDB$INDEX_NAME = S.RDB$INDEX_NAME
> ORDER BY I.RDB$RELATION_NAME ASC
> , S.RDB$FIELD_POSITION ASC
>
> SELECT S.RDB$FIELD_NAME
> FROM RDB$RELATION_CONSTRAINTS C
> , RDB$INDICES I
> , RDB$INDEX_SEGMENTS S
> WHERE C.RDB$CONSTRAINT_TYPE = 'PRIMARY KEY'
> AND C.RDB$RELATION_NAME = I.RDB$RELATION_NAME
> AND C.RDB$INDEX_NAME = I.RDB$INDEX_NAME
> AND I.RDB$INDEX_NAME = S.RDB$INDEX_NAME
> AND I.RDB$RELATION_NAME = ? /* RDB$RELATION_NAME */
> ORDER BY S.RDB$FIELD_POSITION ASC
>
> PARAMS = [ Version 1 SQLd 1 SQLn 1
> [RDB$RELATION_NAME] = 'UTF8TEST
> ' ]
>
>
> SELECT UTF8TEST.*
> , UTF8TEST.RDB$DB_KEY
> from
> UTF8TEST
>
> PLAN (UTF8TEST NATURAL)
>
> SELECT R.RDB$FIELD_NAME
> , R.RDB$RELATION_NAME
> FROM RDB$RELATION_FIELDS R
> , RDB$FIELDS F
> WHERE R.RDB$FIELD_SOURCE = F.RDB$FIELD_NAME
> AND F.RDB$COMPUTED_SOURCE IS NOT NULL
> AND NOT R.RDB$RELATION_NAME STARTING WITH 'RDB$'
> ORDER BY 1 ASC
>
>
> SELECT R.RDB$RELATION_ID || '=', R.RDB$RELATION_NAME
> FROM RDB$RELATIONS R
> ORDER BY 1 ASC
>
> PLAN SORT ((R NATURAL))
>
>
> Whenever I retry the query in the Query Editor, it works
> fine. So it appears
> IBO is raising the error in the last metadata query, because
> it doesn't
> execute
> those anymore.
>
> A second attempt gives me this trace:
>
> SELECT UTF8TEST.*
> , UTF8TEST.RDB$DB_KEY
> from
> UTF8TEST
>
> PLAN (UTF8TEST NATURAL)
>
>
>
> Got a clue?
>
> Martijn Tonies
> Database Workbench - tool for InterBase, Firebird, MySQL,
> NexusDB, Oracle &
> MS SQL Server
> Upscene Productions
> http://www.upscene.com
> My thoughts:
> http://blog.upscene.com/martijn/
> Database development questions? Check the forum!
> http://www.databasedevelopmentforum.com