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Create Unique Index comes up with "Key size too big" error

Posted on 2006-06-18
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Last Modified: 2013-12-09
This is the statement I'm trying to run on a Firebird database:

CREATE UNIQUE INDEX "iName_Software" ON "Software"("Name");

Unfortunately, it comes up with this error:

This operation is not defined for system tables.  Unsuccessful metadata update.
Key size too big for index iName_Software

Anyone with ideas on why this occurs?  I would've thought this would be fairly standard.
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Question by:khooc
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7 Comments
 
LVL 10

Expert Comment

by:kacor
ID: 16932024
Try without " eg.
CREATE UNIQUE INDEX iName_Software ON Software(Name);

Janos
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LVL 19

Expert Comment

by:Nick Upson
ID: 16932550
please tell us your table structure and character set, also which version of firebird
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Author Comment

by:khooc
ID: 16942337
Hi Nick

Firebird Version: 1.5.3.4870
Charset: NONE

For Table structure, name is Software.
Fields are:
 - OID INTEGER - Primary Key
 - "Name" VARCHAR(100)

Does that help?

BTW kacor, I tried your suggestion - it doesn't work.

Chris
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LVL 19

Accepted Solution

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Nick Upson earned 500 total points
ID: 16943766
Try this http://www.volny.cz/iprenosil/interbase/ip_ib_indexcalculator.htm

(please report back your findings)
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Author Comment

by:khooc
ID: 16982481
hmmm

as per http://www.ibphoenix.com/main.nfs?page=ibp_expert1

I decided to upgrade to 2.0 RC2 and I could create the index.

Hopefully it isn't too long until 2.0 is deemed production ready...
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LVL 19

Expert Comment

by:Nick Upson
ID: 17017071
NB RC3 came out today
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Author Comment

by:khooc
ID: 17022409
BTW thanks for your help Nick - your answer was the best.

Chris
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