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Postgres FD Implementation
Commit 56148570 authored by Alvaro Herrera's avatar Alvaro Herrera
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Improve description of read/write traffic scalability 

Greg Smith, after a suggestion of James Bruce
parent 155743ad
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doc/src/sgml/high-availability.sgml
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...@@ -188,9 +188,10 @@ protocol to make nodes agree on a serializable transactional order. ...@@ -188,9 +188,10 @@ protocol to make nodes agree on a serializable transactional order.
<para> <para>
With statement-based replication middleware, a program intercepts With statement-based replication middleware, a program intercepts
every SQL query and sends it to one or all servers. Each server every SQL query and sends it to one or all servers. Each server
operates independently. Read-write queries are sent to all servers, operates independently. Read-write queries must be sent to all servers,
while read-only queries can be sent to just one server, allowing so that every server receives any changes. But read-only queries can be
the read workload to be distributed. sent to just one server, allowing the read workload to be distributed
among them.
</para> </para>
<para> <para>
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