The gp_version_at_initdb table is populated on the master and each segment in the HAWQ system. It identifies the version of HAWQ used when the system was first initialized. This table is defined in the pg_global tablespace, meaning it is globally shared across all databases in the system.

Table 1. pg_catalog.gp_version

column type references description
schemaversion integer   Schema version number.
productversion text   Product version number.