Hi, > What I mean is that a same database (or just some tables) is "cut" > into parts, and each of those parts are located in different places. > > For instance, a table TestTable(id int8 not null, first varchar(10), > second varchar(15), primary key(id)) exists on site A and on site B. > Rows are inserted into site A table; different rows are inserted > into site B table. > When a query is done on that table from one of those sites (like > "select * from TestTable;"), the result is the list of all rows from > TestTable of site A together with all rows from TestTable of site B, > as if it was a single local table. > > Another example is that a table TestTable exists on site A, a table > OtherTable exists on site B, and relationship exists between those > tables via, let's say, foreign key. Local queries using both tables > should be possible. > > This explanation may not be very clear, please tell me if that is the case. May be you could have a look at hadoopDB? http://hadoopdb.sourceforge.net/guide/ It can use PostgreSQL Regards, Jayadevan
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