DBC mixed with Free tables performance

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I am using VFP9.

I am in the process of creating a database container for my free tables. I
have quite a few tables and would like to implement this incrementally.

My question is, are there any performance problems with mixing tables in a
dbc with free tables?

I have a query that uses 4 tables to get some data. When running it against
my free tables it runs in under a second. When I run the query against the
same 4 tables only with two of them now added to the database container the
query takes over 30 seconds. I am not sure why this is happening.
SYS(3054) reports the same optimization for both queries.

Please help...


.



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