"PostgreSQL Bugs List" <[EMAIL PROTECTED]> writes:
> We dumped a database with a lot of data using command pg_dump mydb > 
> mydb.dump 

> Then we reimported the data in this way:
> 1- createdb anotherdb
> 2- psql anotherdb < mydb.dump

> After the data was restored queries(SELECT queries, with JOINs) was very 
> very slow. 

Did you ANALYZE after importing?

                        regards, tom lane

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