SUMMARY_STATEMENT

SUMMARY_STATEMENT obtains full information about executed statements (normalized SQL statements) on the primary database node.

**Table 1** SUMMARY_STATEMENT columns
Name	Type	Description
node_name	name	Node name.
node_id	integer	ID of a node.
user_name	name	Username.
user_id	oid	OID of the user.
unique_sql_id	bigint	ID of the normalized SQL statement.
query	text	Normalized SQL statement. Note: The length is controlled by track_activity_query_size.
n_calls	bigint	Number of calls.
min_elapse_time	bigint	Minimum execution time of the SQL statement in the kernel (unit: μs).
max_elapse_time	bigint	Maximum execution time of the SQL statement in the kernel (unit: μs).
total_elapse_time	bigint	Total execution time of the SQL statement in the kernel (unit: μs).
n_returned_rows	bigint	Number of rows in the result set returned by the SELECT statement.
n_tuples_fetched	bigint	Number of rows randomly scanned.
n_tuples_returned	bigint	Number of rows sequentially scanned.
n_tuples_inserted	bigint	Number of rows inserted.
n_tuples_updated	bigint	Number of rows updated.
n_tuples_deleted	bigint	Number of rows deleted.
n_blocks_fetched	bigint	Number of logical reads.
n_blocks_hit	bigint	Number of memory hits.
n_soft_parse	bigint	Number of soft parsing times.
n_hard_parse	bigint	Number of hard parsing times.
db_time	bigint	Valid internal database time, which is accumulated if multiple threads are involved (unit: μs).
cpu_time	bigint	CPU time (unit: μs).
execution_time	bigint	Execution time in the executor (unit: μs).
parse_time	bigint	SQL parsing time (unit: μs).
plan_time	bigint	SQL plan generation time (unit: μs).
rewrite_time	bigint	SQL rewriting time (unit: μs).
pl_execution_time	bigint	Execution time of PL/pgSQL (unit: μs).
pl_compilation_time	bigint	Compilation time of PL/pgSQL (unit: μs).
data_io_time	bigint	I/O time (unit: μs).
net_send_info	text	Network status of messages sent through a physical connection, including the time (unit: μs), number of calls, and throughput (unit: byte). This column is not supported in standalone mode.
net_recv_info	text	Network status of messages received through a physical connection, including the time (unit: μs), number of calls, and throughput (unit: byte). This column is not supported in standalone mode.
net_stream_send_info	text	Network status of messages sent through a logical connection, including the time (unit: μs), number of calls, and throughput (unit: byte). This column is not supported in standalone mode.
net_stream_recv_info	text	Network status of messages received through a logical connection, including the time (unit: μs), number of calls, and throughput (unit: byte). This column is not supported in standalone mode.
last_updated	timestamp with time zone	Last time when the statement was updated.
sort_count	bigint	Sorting count.
sort_time	bigint	Sorting duration (unit: μs).
sort_mem_used	bigint	Size of work memory used during sorting (unit: KB).
sort_spill_count	bigint	Count of file writing when data is flushed to disks during sorting.
sort_spill_size	bigint	File size used when data is flushed to disks during sorting (unit: KB).
hash_count	bigint	Hashing count.
hash_time	bigint	Hashing duration (unit: μs).
hash_mem_used	bigint	Size of work memory used during hashing (unit: KB).
hash_spill_count	bigint	Number of file writes when data is flushed to disks during hashing.
hash_spill_size	bigint	File size used when data is flushed to disks during hashing (unit: KB).