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PG-150: Logging CMD Type like SELECT, UPDATE, INSERT, DELETE.

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This commit is contained in:
Ibrar Ahmed
2020-12-06 16:38:48 +00:00
parent 379fcdefd5
commit 47ad105011
4 changed files with 30 additions and 33 deletions
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35
docs/USER_GUIDE.md
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@@ -341,23 +341,20 @@ SELECT relations::oid[]::regclass[], query FROM pg_stat_monitor;
**`cmd_type`**: List the command type of the query.
```sql
SELECT substr(query,0, 50) AS query, cmd_type FROM pg_stat_monitor WHERE elevel = 0;
                       query                       |    cmd_type    
---------------------------------------------------+-----------------
 BEGIN                                             | {INSERT}
 vacuum pgbench_branches                           | {}
 UPDATE pgbench_branches SET bbalance = bbalance + | {UPDATE,SELECT}
 select substr(query,$1, $2) as query, cmd_type fr | {SELECT}
 select count(*) from pgbench_branches             | {SELECT}
 select substr(query,$1, $2) as query, cmd_type fr | {}
 UPDATE pgbench_accounts SET abalance = abalance + | {UPDATE,SELECT}
 update test SET a = $1                            | {UPDATE}
 END                                               | {INSERT}
 INSERT INTO pgbench_history (tid, bid, aid, delta | {INSERT}
 vacuum pgbench_tellers                            | {}
 SELECT a from test for update                     | {UPDATE,SELECT}
 SELECT abalance FROM pgbench_accounts WHERE aid = | {SELECT}
 UPDATE pgbench_tellers SET tbalance = tbalance +  | {UPDATE,SELECT}
 truncate pgbench_history                          | {}
(15 rows)
postgres=# SELECT bucket, substr(query,0, 50) AS query, cmd_type FROM pg_stat_monitor WHERE elevel = 0;
bucket | query | cmd_type
--------+---------------------------------------------------+----------
1 | vacuum analyze pgbench_history |
1 | alter table pgbench_tellers add primary key (tid) |
1 | insert into pgbench_tellers(tid,bid,tbalance) val | INSERT
1 | select * from tt for update | UPDATE
1 | update tt set a = $1 | UPDATE
1 | delete from tt | DELETE
1 | insert into pgbench_branches(bid,bbalance) values | INSERT
1 | begin |
1 | drop table if exists pgbench_accounts, pgbench_br |
1 | copy pgbench_accounts from stdin | INSERT
1 | create table pgbench_history(tid int,bid int,aid |
1 | SELECT bucket, substr(query,$1, $2) AS query, cmd | SELECT
(12 rows)
```