While here, properly indent the Makefile.
Remove databases/postgresql from MODULES, it's only needed for regression
tests which in this port are not even building properly.
Citus horizontally scales PostgreSQL across multiple machines using
sharding and replication. Its query engine parallelizes incoming SQL
queries across these servers to enable human real-time (less than a
second) responses on large datasets.
Citus extends the underlying database rather than forking it, which
gives developers and enterprises the power and familiarity of a
traditional relational database. As an extension, Citus supports new
PostgreSQL releases, allowing users to benefit from new features while
maintaining compatibility with existing PostgreSQL tools.
From Martijn Rijkeboer, ok sthen@
