[manigandham]

No. Postgresql is a single-node database. It supports replication and failover to other nodes and foreign-data-wrapper extensions that let it query other datasources, but it does not have any support for natively working as a distributed database across several nodes.

Citus is an extension that takes several database nodes and makes them appear as a single logical database server (at the table level, by automatically sharding them based on a column).