The following bug has been logged on the website:
Bug reference: 13645
Logged by: digoal
Email address: digoal(at)126(dot)com
PostgreSQL version: 9.4.4
Operating system: CentOS 6.x x64
Description:
HI,
Hash index and unlogged table don't generate XLOG record, when we use
pg_basebackup's backup datafile & xlog archive recovery database, unlogged
table datafile will purged, and hash index also has unconsistent data page.
Why pg_basebackup not filter the hash index datafile & unlogged table
datafile, these file waste net band and backup file's capcity.