Added a new view 'pg_stat_monitor_hook_stats' that provide execution
time statistics for all hooks installed by the module, following is a
description of the fields:
- hook: The hook function name.
- min_time: The fastest execution time recorded for the given hook.
- max_time: The slowest execution time recorded for the given hook.
- total_time: Total execution time taken by all calls to the hook.
- avg_time: Average execution time of a call to the hook.
- ncalls: Total number of calls to the hook.
- load_comparison: A percentual of time taken by an individual hook
compared to every other hook.
To enable benchmark, code must be compiled with -DBENCHMARK flag, this
will make the hook functions to be replaced by a function with the same
name plus a '_benchmark' suffix, e.g. hook_function_benchmark.
The hook_function_benchmark will call the original function and
calculate the amount of time it took to execute, than it will update
statistics for that hook.
Issue - (#16): PG-112: Change the column name "ip" to "client_ip" for readability purpose.
Issue - (#17): PG-111: Show all the queries from complete and incomplete buckets.
Issue - (#18): PG-108: Log the bucket start time.
Issue - (#19): PG-99: Response time histogram.
Issue - (#20): PG-97: Log CPU time for a query.
Issue - (#21): PG-96: Show objects(tables) involved in the query.
Issue - (#22): PG-93: Retain the bucket, and don't delete the bucket automatically.
Issue - (#23): PG-91: Log queries of all the databases.
Issue - (#24): PG-116: Restrict the query size.
Issue - (#3) : README file update.
When accessing the "host" column, it gives the error in some cases
"ERROR: result is out of range". The patch changes the host datatype
from int to bigint.
Support for database/user/client based aggregates added to access
these statistics with three new views added. Some new counters added
including min/max/mean's time histograms. We are saving the parameters
of the slow queries, which can be tested later. Did some refactoring
of the code, by renaming the whole extension from pg_stat_statement to
pg_stat_monitor.
Diego Fronza
Ibrar Ahmed