PG_STAT_BAD_BLOCK

PG_STAT_BAD_BLOCK shows statistics about Page or CU verification failures after a node is started.

Table 1 PG_STAT_BAD_BLOCK columns

Name	Type	Description
nodename	text	Node name
databaseid	integer	OID of a database
tablespaceid	integer	Tablespace OID
relfilenode	integer	File object ID
bucketid	smallint	ID of the bucket for consistent hashing
forknum	integer	File type The values are as follows: 0: main data file 1: FSM file 2: VM file 3: BCM file If the value is greater than 4, it indicates a data file of each column in a column-store table.
error_count	integer	Number of verification failures
first_time	timestamp with time zone	Time of the first verification failure
last_time	timestamp with time zone	Time of the latest verification failure