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Editorial Team
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Asked: 2026-05-13T17:45:16+00:00

I have a database table with the primary column defined as: ID bigint identity

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I have a database table with the primary column defined as:

ID bigint identity primary key

I also have a text column MiddlePart. I’m trying to create a full text index, like so:

CREATE FULLTEXT INDEX ON domaining.dbo.DomainName
(
    MiddlePart 
    Language 0X0
)
KEY INDEX ID ON domaincatalog
WITH CHANGE_TRACKING AUTO

I get this error:

‘ID’ is not a valid index to enforce a full-text search key. A full-text search key must be a unique, non-nullable, single-column index which is not offline, is not defined on a non-deterministic or imprecise nonpersisted computed column, does not have a filter, and has maximum size of 900 bytes. Choose another index for the full-text key.

What am I doing wrong?

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1 Answer

  1. Editorial Team

    After KEY INDEX, you need to specify the name of the index not the column. To find the name of the index on the column ID, type sp_help DomainName and there will be a list of indexes on that table. The pk will be named something like PK_xxxxx. Use that index name instead of “ID”.

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