A tablespace requires a file system location to store its database files. In HAWQ, the master and each segment needs its own distinct storage location. This collection of file system locations for all components in a HAWQ system is referred to as a filespace. The pg_filespace_entry table contains information about the collection of file system locations across a HAWQ system that comprise a HAWQ filespace.

Table 1. pg_catalog.pg_filespace_entry

column type references description
fsefsoid oid pg_filespace.oid Object id of the filespace.
fsedbid integer gp_segment_ configuration.dbid Segment id.
fselocation text   File system location for this segment id.