GS_SQL_COUNT

GS_SQL_COUNT displays statistics about the five types of statements (SELECT, INSERT, UPDATE, DELETE, and MERGE INTO) executed on the current node of the database, including the number of execution times, response time (the maximum, minimum, average, and total response time of the other four types of statements except the MERGE INTO statement, in microseconds), and the number of execution times of DDL, DML, and DCL statements.

The classification of DDL, DML, and DCL statements in the GS_SQL_COUNT view is slightly different from that of the SQL syntax. The details are as follows:

User-related statements, such as CREATE/ALTER/DROP USER and CREATE/ALTER/DROP ROLE, are of the DCL type.
Transaction-related statements such as BEGIN/COMMIT/SET CONSTRAINTS/ROLLBACK/SAVEPOINT/START are of the DCL type.
ALTER SYSTEM KILL SESSION is equivalent to the SELECT pg_terminate_backend() statement and is of the DML type.

The classification of other statements is similar to the definition in the SQL syntax.

When a common user queries the GS_SQL_COUNT view, only the statistics of this user in the current node can be viewed. When a user with the administrator permissions queries the GS_SQL_COUNT view, the statistics of all users in the current node can be viewed. When the cluster or the node is restarted, the statistics are cleared and the counting restarts. The counting is based on the number of queries received by the node, including the queries performed inside the cluster. Statistics about the GS_SQL_COUNT view are collected only on CNs, and SQL statements sent from other CNs are not collected. No result is returned when you query the view on a DN.

**Table 1** GS_SQL_COUNT columns
Name	Type	Description
node_name	name	Node name
user_name	name	Username
select_count	bigint	Number of SELECT statements.
update_count	bigint	Number of UPDATE statements
insert_count	bigint	Number of INSERT statements
delete_count	bigint	Number of DELETE statements
mergeinto_count	bigint	Number of MERGE INTO statements
ddl_count	bigint	Number of DDL statements
dml_count	bigint	Number of DML statements
dcl_count	bigint	Number of DCL statements
total_select_elapse	bigint	Total response time of SELECT statements
avg_select_elapse	bigint	Average response time of SELECT statements
max_select_elapse	bigint	Maximum response time of SELECT statements
min_select_elapse	bigint	Minimum response time of SELECT statements
total_update_elapse	bigint	Total response time of UPDATE statements
avg_update_elapse	bigint	Average response time of UPDATE statements
max_update_elapse	bigint	Maximum response time of UPDATE statements
min_update_elapse	bigint	Minimum response time of UPDATE statements
total_delete_elapse	bigint	Total response time of DELETE statements
avg_delete_elapse	bigint	Average response time of DELETE statements
max_delete_elapse	bigint	Maximum response time of DELETE statements
min_delete_elapse	bigint	Minimum response time of DELETE statements
total_insert_elapse	bigint	Total response time of INSERT statements
avg_insert_elapse	bigint	Average response time of INSERT statements
max_insert_elapse	bigint	Maximum response time of INSERT statements
min_insert_elapse	bigint	Minimum response time of INSERT statements