Re: DDBMS with postgresql.

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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