Internal Query Processor Error

Ok, I'm getting an issue with SQL Server and I'm at a bit of a loss to understand why it's happening.

Situation: We have an existing database, and we're running a migration script over it to bring it up to a new version.

We get partway through the script when we get the error:
Internal Query Processor Error: The query processor ran out of stack space during query optimization.

I've searched around the web and it seems that people get this when they do silly things like have 300 Foreign Keys, or 17 pages of where clauses, or something else rediculous to hit the boundary conditions of SQL Server.

this is what i've gathered so far about our situation, using SQL Server 2000 SP4
1. I've recreated/changed a clustered index using the drop_existing clause
/****** Object: Index [IX_BM_SYNCHRONIZATION_1] Script Date: 08/28/2007 18:42:11 ******/
CREATE CLUSTERED INDEX [IX_BLAH ON [dbo].[TABLE_BLAH]
(
[VECTORID] ASC,
[TRANSID] ASC,
[ORDERID] ASC
)
WITH DROP_EXISTING
GO

2. later on the script, we attempt to delete from this table with a query that doesn't use this index eg
DELETE FROM TABLE_BLAH WHERE PRODUCT_NAME = 'blah'

and we get the error: Internal Query Processor Error: The query processor ran out of stack space during query optimization.

We're running this through osql.exe and not using any transactions

likewise, there is another section where it tries to insert into this table and it gets the same error.


Does anyone have an idea of what we could be running into here - the table only has 3 indexes on it, has only 18 columns (of which one is a 'text' column) and the particular datbase we're running this on is tiny.

Thanks,