-- { echoOn }






select 'optimize_trivial_insert_select=0', 'max_insert_threads=0', 'iteration_num=';
optimize_trivial_insert_select=0	max_insert_threads=0	iteration_num=
insert into testX select number from numbers(200) settings
    send_logs_level='fatal',
    insert_deduplication_token='UT_1',
    log_queries=1,
    parallel_view_processing=0,
    optimize_trivial_insert_select=0,
    max_insert_threads=0;
system flush logs;
select peak_threads_usage from system.query_log where
    current_database = currentDatabase() and
    type != 'QueryStart' and
    query like '%insert into testX %' and
    Settings['parallel_view_processing'] = '0' and
    Settings['optimize_trivial_insert_select'] = '0' and
    Settings['max_insert_threads'] = '0';
2
select count() from testX;
200
select count() from testXA;
200
select count() from testXC;
200
select 'optimize_trivial_insert_select=0', 'max_insert_threads=5', 'iteration_num=';
optimize_trivial_insert_select=0	max_insert_threads=5	iteration_num=
insert into testX select number from numbers(200) settings
    send_logs_level='fatal',
    insert_deduplication_token='UT_2',
    log_queries=1,
    parallel_view_processing=0,
    optimize_trivial_insert_select=0,
    max_insert_threads=5;
system flush logs;
select peak_threads_usage from system.query_log where
    current_database = currentDatabase() and
    type != 'QueryStart' and
    query like '%insert into testX %' and
    Settings['parallel_view_processing'] = '0' and
    Settings['optimize_trivial_insert_select'] = '0' and
    Settings['max_insert_threads'] = '5';
2
select count() from testX;
400
select count() from testXA;
400
select count() from testXC;
400
select 'optimize_trivial_insert_select=1', 'max_insert_threads=0', 'iteration_num=';
optimize_trivial_insert_select=1	max_insert_threads=0	iteration_num=
insert into testX select number from numbers(200) settings
    send_logs_level='fatal',
    insert_deduplication_token='UT_3',
    log_queries=1,
    parallel_view_processing=0,
    optimize_trivial_insert_select=1,
    max_insert_threads=0;
system flush logs;
select peak_threads_usage from system.query_log where
    current_database = currentDatabase() and
    type != 'QueryStart' and
    query like '%insert into testX %' and
    Settings['parallel_view_processing'] = '0' and
    Settings['optimize_trivial_insert_select'] = '1' and
    Settings['max_insert_threads'] = '0';
2
select count() from testX;
600
select count() from testXA;
600
select count() from testXC;
600
select 'optimize_trivial_insert_select=1', 'max_insert_threads=5', 'iteration_num=';
optimize_trivial_insert_select=1	max_insert_threads=5	iteration_num=
insert into testX select number from numbers(200) settings
    send_logs_level='fatal',
    insert_deduplication_token='UT_4',
    log_queries=1,
    parallel_view_processing=0,
    optimize_trivial_insert_select=1,
    max_insert_threads=5;
system flush logs;
select peak_threads_usage from system.query_log where
    current_database = currentDatabase() and
    type != 'QueryStart' and
    query like '%insert into testX %' and
    Settings['parallel_view_processing'] = '0' and
    Settings['optimize_trivial_insert_select'] = '1' and
    Settings['max_insert_threads'] = '5';
2
select count() from testX;
800
select count() from testXA;
800
select count() from testXC;
800
select 'optimize_trivial_insert_select=0', 'max_insert_threads=0', 'iteration_num=';
optimize_trivial_insert_select=0	max_insert_threads=0	iteration_num=
insert into testX select number from numbers(200) settings
    send_logs_level='fatal',
    insert_deduplication_token='UT_5',
    log_queries=1,
    parallel_view_processing=1,
    optimize_trivial_insert_select=0,
    max_insert_threads=0;
system flush logs;
select peak_threads_usage from system.query_log where
    current_database = currentDatabase() and
    type != 'QueryStart' and
    query like '%insert into testX %' and
    Settings['parallel_view_processing'] = '1' and
    Settings['optimize_trivial_insert_select'] = '0' and
    Settings['max_insert_threads'] = '0';
5
select count() from testX;
1000
select count() from testXA;
1000
select count() from testXC;
1000
select 'optimize_trivial_insert_select=0', 'max_insert_threads=5', 'iteration_num=';
optimize_trivial_insert_select=0	max_insert_threads=5	iteration_num=
insert into testX select number from numbers(200) settings
    send_logs_level='fatal',
    insert_deduplication_token='UT_6',
    log_queries=1,
    parallel_view_processing=1,
    optimize_trivial_insert_select=0,
    max_insert_threads=5;
system flush logs;
select peak_threads_usage from system.query_log where
    current_database = currentDatabase() and
    type != 'QueryStart' and
    query like '%insert into testX %' and
    Settings['parallel_view_processing'] = '1' and
    Settings['optimize_trivial_insert_select'] = '0' and
    Settings['max_insert_threads'] = '5';
12
select count() from testX;
1200
select count() from testXA;
1200
select count() from testXC;
1200
select 'optimize_trivial_insert_select=1', 'max_insert_threads=0', 'iteration_num=';
optimize_trivial_insert_select=1	max_insert_threads=0	iteration_num=
insert into testX select number from numbers(200) settings
    send_logs_level='fatal',
    insert_deduplication_token='UT_7',
    log_queries=1,
    parallel_view_processing=1,
    optimize_trivial_insert_select=1,
    max_insert_threads=0;
system flush logs;
select peak_threads_usage from system.query_log where
    current_database = currentDatabase() and
    type != 'QueryStart' and
    query like '%insert into testX %' and
    Settings['parallel_view_processing'] = '1' and
    Settings['optimize_trivial_insert_select'] = '1' and
    Settings['max_insert_threads'] = '0';
2
select count() from testX;
1400
select count() from testXA;
1400
select count() from testXC;
1400
select 'optimize_trivial_insert_select=1', 'max_insert_threads=5', 'iteration_num=';
optimize_trivial_insert_select=1	max_insert_threads=5	iteration_num=
insert into testX select number from numbers(200) settings
    send_logs_level='fatal',
    insert_deduplication_token='UT_8',
    log_queries=1,
    parallel_view_processing=1,
    optimize_trivial_insert_select=1,
    max_insert_threads=5;
system flush logs;
select peak_threads_usage from system.query_log where
    current_database = currentDatabase() and
    type != 'QueryStart' and
    query like '%insert into testX %' and
    Settings['parallel_view_processing'] = '1' and
    Settings['optimize_trivial_insert_select'] = '1' and
    Settings['max_insert_threads'] = '5';
7
select count() from testX;
1600
select count() from testXA;
1600
select count() from testXC;
1600