GS_SLOW_QUERY_INFO (Discarded)
GS_SLOW_QUERY_INFO displays the slow query information that has been dumped on the current node. The data is dumped from the kernel to the system catalog. If enable_resource_record is set to on, the system imports the query information from the kernel to GS_WLM_SESSION_QUERY_INFO_ALL every 3 minutes. This operation occupies storage space and affects performance. You can check GS_SLOW_QUERY_INFO to view the slow query information that has been dumped. This view has been discarded in this version.
Name |
Type |
Description |
---|---|---|
dbname |
text |
Database name |
schemaname |
text |
Schema name |
nodename |
text |
Node name |
username |
text |
Username |
queryid |
bigint |
Normalization ID |
query |
text |
Query statement |
start_time |
timestamp with time zone |
Execution start time |
finish_time |
timestamp with time zone |
Execution end time |
duration |
bigint |
Execution duration (unit: ms) |
query_plan |
text |
Plan information |
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 cache loading times |
n_blocks_hit |
bigint |
Cache hits |
db_time |
bigint |
Valid DB 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) |
net_send_time |
bigint |
Network time (unit: μs) |
data_io_time |
bigint |
I/O time (unit: μs) |
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