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-- test old extension version entry points
CREATE EXTENSION pg_stat_statements WITH VERSION '1.4';
-- Execution of pg_stat_statements_reset() is granted only to
-- superusers in 1.4, so this fails.
SET SESSION AUTHORIZATION pg_read_all_stats;
SELECT pg_stat_statements_reset();
ERROR:  permission denied for function pg_stat_statements_reset
RESET SESSION AUTHORIZATION;
AlTER EXTENSION pg_stat_statements UPDATE TO '1.5';
-- Execution of pg_stat_statements_reset() should be granted to
-- pg_read_all_stats now, so this works.
SET SESSION AUTHORIZATION pg_read_all_stats;
SELECT pg_stat_statements_reset();
 pg_stat_statements_reset 
--------------------------
 
(1 row)

RESET SESSION AUTHORIZATION;
-- In 1.6, it got restricted back to superusers.
AlTER EXTENSION pg_stat_statements UPDATE TO '1.6';
SET SESSION AUTHORIZATION pg_read_all_stats;
SELECT pg_stat_statements_reset();
ERROR:  permission denied for function pg_stat_statements_reset
RESET SESSION AUTHORIZATION;
SELECT pg_get_functiondef('pg_stat_statements_reset'::regproc);
                              pg_get_functiondef                               
-------------------------------------------------------------------------------
 CREATE OR REPLACE FUNCTION public.pg_stat_statements_reset()                 +
  RETURNS void                                                                +
  LANGUAGE c                                                                  +
  PARALLEL SAFE                                                               +
 AS '$libdir/pg_stat_statements', $function$pg_stat_statements_reset$function$+
 
(1 row)

-- New function for pg_stat_statements_reset introduced, still
-- restricted for non-superusers.
AlTER EXTENSION pg_stat_statements UPDATE TO '1.7';
SET SESSION AUTHORIZATION pg_read_all_stats;
SELECT pg_stat_statements_reset();
ERROR:  permission denied for function pg_stat_statements_reset
RESET SESSION AUTHORIZATION;
SELECT pg_get_functiondef('pg_stat_statements_reset'::regproc);
                                                       pg_get_functiondef                                                       
--------------------------------------------------------------------------------------------------------------------------------
 CREATE OR REPLACE FUNCTION public.pg_stat_statements_reset(userid oid DEFAULT 0, dbid oid DEFAULT 0, queryid bigint DEFAULT 0)+
  RETURNS void                                                                                                                 +
  LANGUAGE c                                                                                                                   +
  PARALLEL SAFE STRICT                                                                                                         +
 AS '$libdir/pg_stat_statements', $function$pg_stat_statements_reset_1_7$function$                                             +
 
(1 row)

\d pg_stat_statements
                    View "public.pg_stat_statements"
       Column        |       Type       | Collation | Nullable | Default 
---------------------+------------------+-----------+----------+---------
 userid              | oid              |           |          | 
 dbid                | oid              |           |          | 
 queryid             | bigint           |           |          | 
 query               | text             |           |          | 
 calls               | bigint           |           |          | 
 total_time          | double precision |           |          | 
 min_time            | double precision |           |          | 
 max_time            | double precision |           |          | 
 mean_time           | double precision |           |          | 
 stddev_time         | double precision |           |          | 
 rows                | bigint           |           |          | 
 shared_blks_hit     | bigint           |           |          | 
 shared_blks_read    | bigint           |           |          | 
 shared_blks_dirtied | bigint           |           |          | 
 shared_blks_written | bigint           |           |          | 
 local_blks_hit      | bigint           |           |          | 
 local_blks_read     | bigint           |           |          | 
 local_blks_dirtied  | bigint           |           |          | 
 local_blks_written  | bigint           |           |          | 
 temp_blks_read      | bigint           |           |          | 
 temp_blks_written   | bigint           |           |          | 
 blk_read_time       | double precision |           |          | 
 blk_write_time      | double precision |           |          | 

SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
 has_data 
----------
 t
(1 row)

-- New functions and views for pg_stat_statements in 1.8
AlTER EXTENSION pg_stat_statements UPDATE TO '1.8';
\d pg_stat_statements
                    View "public.pg_stat_statements"
       Column        |       Type       | Collation | Nullable | Default 
---------------------+------------------+-----------+----------+---------
 userid              | oid              |           |          | 
 dbid                | oid              |           |          | 
 queryid             | bigint           |           |          | 
 query               | text             |           |          | 
 plans               | bigint           |           |          | 
 total_plan_time     | double precision |           |          | 
 min_plan_time       | double precision |           |          | 
 max_plan_time       | double precision |           |          | 
 mean_plan_time      | double precision |           |          | 
 stddev_plan_time    | double precision |           |          | 
 calls               | bigint           |           |          | 
 total_exec_time     | double precision |           |          | 
 min_exec_time       | double precision |           |          | 
 max_exec_time       | double precision |           |          | 
 mean_exec_time      | double precision |           |          | 
 stddev_exec_time    | double precision |           |          | 
 rows                | bigint           |           |          | 
 shared_blks_hit     | bigint           |           |          | 
 shared_blks_read    | bigint           |           |          | 
 shared_blks_dirtied | bigint           |           |          | 
 shared_blks_written | bigint           |           |          | 
 local_blks_hit      | bigint           |           |          | 
 local_blks_read     | bigint           |           |          | 
 local_blks_dirtied  | bigint           |           |          | 
 local_blks_written  | bigint           |           |          | 
 temp_blks_read      | bigint           |           |          | 
 temp_blks_written   | bigint           |           |          | 
 blk_read_time       | double precision |           |          | 
 blk_write_time      | double precision |           |          | 
 wal_records         | bigint           |           |          | 
 wal_fpi             | bigint           |           |          | 
 wal_bytes           | numeric          |           |          | 

SELECT pg_get_functiondef('pg_stat_statements_reset'::regproc);
                                                       pg_get_functiondef                                                       
--------------------------------------------------------------------------------------------------------------------------------
 CREATE OR REPLACE FUNCTION public.pg_stat_statements_reset(userid oid DEFAULT 0, dbid oid DEFAULT 0, queryid bigint DEFAULT 0)+
  RETURNS void                                                                                                                 +
  LANGUAGE c                                                                                                                   +
  PARALLEL SAFE STRICT                                                                                                         +
 AS '$libdir/pg_stat_statements', $function$pg_stat_statements_reset_1_7$function$                                             +
 
(1 row)

-- New function pg_stat_statement_info, and new function
-- and view for pg_stat_statements introduced in 1.9
AlTER EXTENSION pg_stat_statements UPDATE TO '1.9';
SELECT pg_get_functiondef('pg_stat_statements_info'::regproc);
                                                   pg_get_functiondef                                                    
-------------------------------------------------------------------------------------------------------------------------
 CREATE OR REPLACE FUNCTION public.pg_stat_statements_info(OUT dealloc bigint, OUT stats_reset timestamp with time zone)+
  RETURNS record                                                                                                        +
  LANGUAGE c                                                                                                            +
  PARALLEL SAFE STRICT                                                                                                  +
 AS '$libdir/pg_stat_statements', $function$pg_stat_statements_info$function$                                           +
 
(1 row)

\d pg_stat_statements
                    View "public.pg_stat_statements"
       Column        |       Type       | Collation | Nullable | Default 
---------------------+------------------+-----------+----------+---------
 userid              | oid              |           |          | 
 dbid                | oid              |           |          | 
 toplevel            | boolean          |           |          | 
 queryid             | bigint           |           |          | 
 query               | text             |           |          | 
 plans               | bigint           |           |          | 
 total_plan_time     | double precision |           |          | 
 min_plan_time       | double precision |           |          | 
 max_plan_time       | double precision |           |          | 
 mean_plan_time      | double precision |           |          | 
 stddev_plan_time    | double precision |           |          | 
 calls               | bigint           |           |          | 
 total_exec_time     | double precision |           |          | 
 min_exec_time       | double precision |           |          | 
 max_exec_time       | double precision |           |          | 
 mean_exec_time      | double precision |           |          | 
 stddev_exec_time    | double precision |           |          | 
 rows                | bigint           |           |          | 
 shared_blks_hit     | bigint           |           |          | 
 shared_blks_read    | bigint           |           |          | 
 shared_blks_dirtied | bigint           |           |          | 
 shared_blks_written | bigint           |           |          | 
 local_blks_hit      | bigint           |           |          | 
 local_blks_read     | bigint           |           |          | 
 local_blks_dirtied  | bigint           |           |          | 
 local_blks_written  | bigint           |           |          | 
 temp_blks_read      | bigint           |           |          | 
 temp_blks_written   | bigint           |           |          | 
 blk_read_time       | double precision |           |          | 
 blk_write_time      | double precision |           |          | 
 wal_records         | bigint           |           |          | 
 wal_fpi             | bigint           |           |          | 
 wal_bytes           | numeric          |           |          | 

SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
 has_data 
----------
 t
(1 row)

-- New functions and views for pg_stat_statements in 1.10
AlTER EXTENSION pg_stat_statements UPDATE TO '1.10';
\d pg_stat_statements
                      View "public.pg_stat_statements"
         Column         |       Type       | Collation | Nullable | Default 
------------------------+------------------+-----------+----------+---------
 userid                 | oid              |           |          | 
 dbid                   | oid              |           |          | 
 toplevel               | boolean          |           |          | 
 queryid                | bigint           |           |          | 
 query                  | text             |           |          | 
 plans                  | bigint           |           |          | 
 total_plan_time        | double precision |           |          | 
 min_plan_time          | double precision |           |          | 
 max_plan_time          | double precision |           |          | 
 mean_plan_time         | double precision |           |          | 
 stddev_plan_time       | double precision |           |          | 
 calls                  | bigint           |           |          | 
 total_exec_time        | double precision |           |          | 
 min_exec_time          | double precision |           |          | 
 max_exec_time          | double precision |           |          | 
 mean_exec_time         | double precision |           |          | 
 stddev_exec_time       | double precision |           |          | 
 rows                   | bigint           |           |          | 
 shared_blks_hit        | bigint           |           |          | 
 shared_blks_read       | bigint           |           |          | 
 shared_blks_dirtied    | bigint           |           |          | 
 shared_blks_written    | bigint           |           |          | 
 local_blks_hit         | bigint           |           |          | 
 local_blks_read        | bigint           |           |          | 
 local_blks_dirtied     | bigint           |           |          | 
 local_blks_written     | bigint           |           |          | 
 temp_blks_read         | bigint           |           |          | 
 temp_blks_written      | bigint           |           |          | 
 blk_read_time          | double precision |           |          | 
 blk_write_time         | double precision |           |          | 
 temp_blk_read_time     | double precision |           |          | 
 temp_blk_write_time    | double precision |           |          | 
 wal_records            | bigint           |           |          | 
 wal_fpi                | bigint           |           |          | 
 wal_bytes              | numeric          |           |          | 
 jit_functions          | bigint           |           |          | 
 jit_generation_time    | double precision |           |          | 
 jit_inlining_count     | bigint           |           |          | 
 jit_inlining_time      | double precision |           |          | 
 jit_optimization_count | bigint           |           |          | 
 jit_optimization_time  | double precision |           |          | 
 jit_emission_count     | bigint           |           |          | 
 jit_emission_time      | double precision |           |          | 

SELECT count(*) > 0 AS has_data FROM pg_stat_statements;
 has_data 
----------
 t
(1 row)

DROP EXTENSION pg_stat_statements;