mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 15:50:51 +03:00
226 lines
6.7 KiB
Plaintext
226 lines
6.7 KiB
Plaintext
DROP TABLE IF EXISTS t1;
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select variable_value from information_schema.global_status where variable_name="handler_read_key" into @global_read_key;
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show columns from information_schema.client_statistics;
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Field Type Null Key Default Extra
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CLIENT varchar(64) NO
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TOTAL_CONNECTIONS bigint(21) NO 0
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CONCURRENT_CONNECTIONS bigint(21) NO 0
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CONNECTED_TIME bigint(21) NO 0
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BUSY_TIME double NO 0
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CPU_TIME double NO 0
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BYTES_RECEIVED bigint(21) NO 0
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BYTES_SENT bigint(21) NO 0
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BINLOG_BYTES_WRITTEN bigint(21) NO 0
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ROWS_READ bigint(21) NO 0
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ROWS_SENT bigint(21) NO 0
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ROWS_DELETED bigint(21) NO 0
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ROWS_INSERTED bigint(21) NO 0
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ROWS_UPDATED bigint(21) NO 0
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SELECT_COMMANDS bigint(21) NO 0
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UPDATE_COMMANDS bigint(21) NO 0
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OTHER_COMMANDS bigint(21) NO 0
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COMMIT_TRANSACTIONS bigint(21) NO 0
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ROLLBACK_TRANSACTIONS bigint(21) NO 0
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DENIED_CONNECTIONS bigint(21) NO 0
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LOST_CONNECTIONS bigint(21) NO 0
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ACCESS_DENIED bigint(21) NO 0
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EMPTY_QUERIES bigint(21) NO 0
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show columns from information_schema.user_statistics;
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Field Type Null Key Default Extra
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USER varchar(48) NO
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TOTAL_CONNECTIONS int(11) NO 0
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CONCURRENT_CONNECTIONS int(11) NO 0
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CONNECTED_TIME int(11) NO 0
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BUSY_TIME double NO 0
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CPU_TIME double NO 0
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BYTES_RECEIVED bigint(21) NO 0
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BYTES_SENT bigint(21) NO 0
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BINLOG_BYTES_WRITTEN bigint(21) NO 0
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ROWS_READ bigint(21) NO 0
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ROWS_SENT bigint(21) NO 0
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ROWS_DELETED bigint(21) NO 0
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ROWS_INSERTED bigint(21) NO 0
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ROWS_UPDATED bigint(21) NO 0
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SELECT_COMMANDS bigint(21) NO 0
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UPDATE_COMMANDS bigint(21) NO 0
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OTHER_COMMANDS bigint(21) NO 0
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COMMIT_TRANSACTIONS bigint(21) NO 0
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ROLLBACK_TRANSACTIONS bigint(21) NO 0
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DENIED_CONNECTIONS bigint(21) NO 0
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LOST_CONNECTIONS bigint(21) NO 0
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ACCESS_DENIED bigint(21) NO 0
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EMPTY_QUERIES bigint(21) NO 0
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show columns from information_schema.index_statistics;
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Field Type Null Key Default Extra
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TABLE_SCHEMA varchar(192) NO
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TABLE_NAME varchar(192) NO
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INDEX_NAME varchar(192) NO
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ROWS_READ bigint(21) NO 0
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show columns from information_schema.table_statistics;
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Field Type Null Key Default Extra
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TABLE_SCHEMA varchar(192) NO
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TABLE_NAME varchar(192) NO
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ROWS_READ bigint(21) NO 0
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ROWS_CHANGED bigint(21) NO 0
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ROWS_CHANGED_X_INDEXES bigint(21) NO 0
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set @save_general_log=@@global.general_log;
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set @@global.general_log=0;
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set @@global.userstat=1;
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flush status;
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create table t1 (a int, primary key (a), b int default 0) engine=innodb;
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insert into t1 (a) values (1),(2),(3),(4);
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update t1 set b=1;
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update t1 set b=5 where a=2;
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delete from t1 where a=3;
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/* Empty query */
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select * from t1 where a=999;
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a b
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drop table t1;
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create table t1 (a int, primary key (a), b int default 0) engine=innodb;
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begin;
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insert into t1 values(1,1);
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commit;
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begin;
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insert into t1 values(2,2);
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commit;
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begin;
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insert into t1 values(3,3);
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rollback;
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drop table t1;
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select sleep(1);
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sleep(1)
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0
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show status like "rows%";
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Variable_name Value
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Rows_read 6
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Rows_sent 1
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Rows_tmp_read 0
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show status like "ha%";
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Variable_name Value
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Handler_commit 19
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Handler_delete 1
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Handler_discover 0
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Handler_icp_attempts 0
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Handler_icp_match 0
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Handler_mrr_init 0
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Handler_mrr_key_refills 0
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Handler_mrr_rowid_refills 0
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Handler_prepare 18
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Handler_read_first 0
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Handler_read_key 3
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Handler_read_last 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_deleted 0
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Handler_read_rnd_next 5
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Handler_rollback 2
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Handler_savepoint 0
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Handler_savepoint_rollback 0
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Handler_tmp_update 0
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Handler_tmp_write 0
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Handler_update 5
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Handler_write 7
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select variable_value - @global_read_key as "handler_read_key" from information_schema.global_status where variable_name="handler_read_key";
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handler_read_key
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3
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set @@global.userstat=0;
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select * from information_schema.index_statistics;
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TABLE_SCHEMA TABLE_NAME INDEX_NAME ROWS_READ
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test t1 PRIMARY 2
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select * from information_schema.table_statistics;
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TABLE_SCHEMA TABLE_NAME ROWS_READ ROWS_CHANGED ROWS_CHANGED_X_INDEXES
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test t1 6 13 13
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show table_statistics;
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Table_schema Table_name Rows_read Rows_changed Rows_changed_x_#indexes
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test t1 6 13 13
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show index_statistics;
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Table_schema Table_name Index_name Rows_read
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test t1 PRIMARY 2
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select TOTAL_CONNECTIONS, CONCURRENT_CONNECTIONS, ROWS_READ, ROWS_SENT, ROWS_DELETED, ROWS_INSERTED, ROWS_UPDATED, SELECT_COMMANDS, UPDATE_COMMANDS, OTHER_COMMANDS, COMMIT_TRANSACTIONS, ROLLBACK_TRANSACTIONS, DENIED_CONNECTIONS, LOST_CONNECTIONS, ACCESS_DENIED, EMPTY_QUERIES from information_schema.client_statistics;;
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TOTAL_CONNECTIONS 1
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CONCURRENT_CONNECTIONS 0
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ROWS_READ 6
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ROWS_SENT 2
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ROWS_DELETED 1
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ROWS_INSERTED 7
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ROWS_UPDATED 5
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SELECT_COMMANDS 3
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UPDATE_COMMANDS 11
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OTHER_COMMANDS 7
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COMMIT_TRANSACTIONS 19
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ROLLBACK_TRANSACTIONS 2
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DENIED_CONNECTIONS 0
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LOST_CONNECTIONS 0
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ACCESS_DENIED 0
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EMPTY_QUERIES 1
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select TOTAL_CONNECTIONS, CONCURRENT_CONNECTIONS, ROWS_READ, ROWS_SENT, ROWS_DELETED, ROWS_INSERTED, ROWS_UPDATED, SELECT_COMMANDS, UPDATE_COMMANDS, OTHER_COMMANDS, COMMIT_TRANSACTIONS, ROLLBACK_TRANSACTIONS, DENIED_CONNECTIONS, LOST_CONNECTIONS, ACCESS_DENIED, EMPTY_QUERIES from information_schema.user_statistics;;
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TOTAL_CONNECTIONS 1
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CONCURRENT_CONNECTIONS 0
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ROWS_READ 6
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ROWS_SENT 2
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ROWS_DELETED 1
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ROWS_INSERTED 7
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ROWS_UPDATED 5
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SELECT_COMMANDS 3
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UPDATE_COMMANDS 11
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OTHER_COMMANDS 7
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COMMIT_TRANSACTIONS 19
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ROLLBACK_TRANSACTIONS 2
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DENIED_CONNECTIONS 0
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LOST_CONNECTIONS 0
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ACCESS_DENIED 0
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EMPTY_QUERIES 1
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flush table_statistics;
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flush index_statistics;
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select * from information_schema.index_statistics;
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TABLE_SCHEMA TABLE_NAME INDEX_NAME ROWS_READ
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select * from information_schema.table_statistics;
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TABLE_SCHEMA TABLE_NAME ROWS_READ ROWS_CHANGED ROWS_CHANGED_X_INDEXES
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show status like "%statistics%";
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Variable_name Value
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Com_show_client_statistics 0
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Com_show_index_statistics 1
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Com_show_table_statistics 1
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Com_show_user_statistics 0
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select connected_time <> 0, busy_time <> 0, bytes_received <> 0,
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bytes_sent <> 0, binlog_bytes_written <> 0
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from information_schema.user_statistics;
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connected_time <> 0 busy_time <> 0 bytes_received <> 0 bytes_sent <> 0 binlog_bytes_written <> 0
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1 1 1 1 1
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select connected_time <> 0, busy_time <> 0, bytes_received <> 0,
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bytes_sent <> 0, binlog_bytes_written <> 0
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from information_schema.client_statistics;
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connected_time <> 0 busy_time <> 0 bytes_received <> 0 bytes_sent <> 0 binlog_bytes_written <> 0
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1 1 1 1 1
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create table t1 (a int) engine=innodb;
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select @@in_transaction;
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@@in_transaction
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0
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begin;
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select @@in_transaction;
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@@in_transaction
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1
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insert into t1 values (1);
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select @@in_transaction;
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@@in_transaction
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1
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commit;
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select @@in_transaction;
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@@in_transaction
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0
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set @@autocommit=0;
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select @@in_transaction;
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@@in_transaction
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0
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insert into t1 values (2);
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select @@in_transaction;
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@@in_transaction
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1
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set @@autocommit=1;
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select @@in_transaction;
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@@in_transaction
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0
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drop table t1;
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set @@global.general_log=@save_general_log;
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