Updated on 2024-06-03 GMT+08:00

Object stats

The Object stats report consists of three tables, namely, User Tables stats, User index stats, and Bad lock stats. Columns in the tables are described in Table 1, Table 2, and Table 3.

User Tables stats

Table 1 Contents in the User Tables stats table

Column

Description

DB Name

Database name.

Schema

Schema name.

Relname

Relation name.

Seq Scan

Number of sequential scans initiated in the table.

Seq Tup Read

Number of live rows fetched by sequential scans.

Index Scan

Number of index scans initiated in the table.

Index Tup Fetch

Number of live rows fetched by index scans.

Tuple Insert

Number of rows inserted.

Tuple Update

Number of rows updated.

Tuple Delete

Number of rows deleted.

Tuple Hot Update

Number of rows HOT updated (with no separate index update required).

Live Tuple

Estimated number of live rows.

Dead Tuple

Estimated number of rows without responses.

Last Vacuum

Last time at which the table was manually vacuumed (not counting VACUUM FULL).

Last Autovacuum

Last time when the table was vacuumed by the autovacuum daemon thread.

Last Analyze

Last time at which this table was manually analyzed.

Last Autoanalyze

Last time when the table was analyzed by the autovacuum daemon thread.

Vacuum Count

Number of times that the table has been manually vacuumed (not counting VACUUM FULL).

Autovacuum Count

Number of times that the table has been vacuumed by the autovacuum daemon.

Analyze Count

Number of times that the table has been manually analyzed.

Autoanalyze Count

Number of times that the table has been analyzed by the autovacuum daemon thread.

User index stats

Table 2 Contents in the User index stats table

Column

Description

DB Name

Database name.

Schema

Schema name.

Relname

Relation name.

Index Relname

Index name.

Index Scan

Number of index scans initiated on the index.

Index Tuple Read

Number of index entries returned by scans on the index.

Index Tuple Fetch

Number of active rows fetched in the original table by a simple index scan that uses the index.

Bad lock stats

Table 3 Contents in the Bad lock stats table

Column

Description

DB Id

OID of the database.

Tablespace Id

Tablespace OID.

Relfilenode

File object ID.

Fork Number

File type.

Error Count

Number of failures.

First Time

First occurrence time.

Last Time

Last occurrence time.