Poul Jensen <flyvholm@xxxxxxxxx> writes: >>you want to create 1 million tables, all with one of >>2 schemas? >> >> > > I started out with a schema for each file, thinking I could utilize > the schema > structure in queries, but I don't see how. Schemas are useful for grouping > tables according to users/owners. Other than that, do they add anything > but a dot in the table name? The word "schema" is a bit overloaded--here it means "table specification" rather than "namespace". A general rule of database design is: if you end up creating multiple tables with the same schema, you're doing it wrong--they should all be one table with an additional key (usually indexed) to distinguish the data. -Doug ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match