Updated on 2025-07-22 GMT+08:00

GLOBAL_STAT_DATABASE

GLOBAL_STAT_DATABASE contains every row of each database on each node in the entire database system, showing database-wide statistics.

Table 1 GLOBAL_STAT_DATABASE columns

Name

Type

Description

node_name

name

Node name.

datid

oid

Database OID.

datname

name

Name of the database

numbackends

integer

Number of backends currently connected to this database. This is the only column in this view that returns a value reflecting the current state; all other columns return the accumulated values since the last reset.

xact_commit

bigint

Number of transactions in this database that have been committed.

xact_rollback

bigint

Number of transactions in this database that have been rolled back.

blks_read

bigint

Number of disk blocks read in this database.

blks_hit

bigint

Number of times disk blocks were found in the buffer cache (unnecessary as the number includes only hits in the database kernel buffer cache)

tup_returned

bigint

Number of rows returned by queries in this database

tup_fetched

bigint

Number of rows fetched by queries in this database

tup_inserted

bigint

Number of rows inserted by queries in this database

tup_updated

bigint

Number of rows updated by queries in this database

tup_deleted

bigint

Number of rows deleted by queries in this database

conflicts

bigint

Number of queries canceled due to database recovery conflicts (conflicts occurring only on the standby node). For details, see STAT_DATABASE_CONFLICTS.

temp_files

bigint

Number of temporary files created by queries in this database. All temporary files are counted, regardless of why the temporary file was created (for example, sorting or hashing), and regardless of the log_temp_files setting.

temp_bytes

bigint

Total amount of data written to temporary files by queries in this database. All temporary files are counted, regardless of why the temporary file was created, and regardless of the log_temp_files setting.

deadlocks

bigint

Number of deadlocks detected in this database.

blk_read_time

double precision

Time spent in reading data file blocks by backends in this database (unit: ms).

blk_write_time

double precision

Time spent in writing data file blocks by backends in this database (unit: ms).

stats_reset

timestamp with time zone

Time at which the current statistics were reset.