From: MauMau <mau...@gm...> - 2011-12-30 07:58:10
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Hello, I'm very interested in the evolution of Postgres-XC as a data warehouse infrastructure. Thank you for your great job. Please let me ask you some questions. 1.What kind of SELECT statements does the current Postgres-XC process in parallel on multiple nodes? I mean I'd like to know if a single query can be broken into pieces and processed in parallel on different nodes. To be more concrete, does the following simple query become faster as the number of nodes increases? SELECT SUM(some_column) FROM some_table [WHERE ...]; 2.Does the foreign table feature of PostgreSQL 9.1 work with Postgres-XC? If it doesn't currently, do you have any plan? Regards MauMau |