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--source include/have_sequence.inc
--source include/not_embedded.inc
#
# Test changes in calculate_cond_selectivity_for_table()
#
create or replace table t1 (a int, b int, c int, key(a,c), key(b,c), key (c,b)) engine=aria;
insert into t1 select seq/100+1, mod(seq,10), mod(seq,15) from seq_1_to_10000;
insert into t1 select seq/100+1, mod(seq,10), 10 from seq_1_to_1000;
optimize table t1;
select count(*) from t1 where a=2;
select count(*) from t1 where b=5;
select count(*) from t1 where c=5;
select count(*) from t1 where c=10;
select count(*) from t1 where a=2 and b=5;
select count(*) from t1 where c=10 and b=5;
select count(*) from t1 where c=5 and b=5;
set optimizer_trace="enabled=on";
select count(*) from t1 where a=2 and b=5 and c=10;
set @trace=(select trace from INFORMATION_SCHEMA.OPTIMIZER_TRACE);
# The second JSON_EXTRACT is for --view-protocol which wraps every select:
select
JSON_DETAILED(
JSON_EXTRACT(
JSON_EXTRACT(@trace, '$**.considered_execution_plans'),
'$[0]'
)
) as JS;
select JSON_DETAILED(JSON_EXTRACT(@trace, '$**.selectivity_for_indexes')) as JS;
select count(*) from t1 where a=2 and b=5 and c=5;
set @trace=(select trace from INFORMATION_SCHEMA.OPTIMIZER_TRACE);
# The second JSON_EXTRACT is for --view-protocol which wraps every select:
select
JSON_DETAILED(
JSON_EXTRACT(
JSON_EXTRACT(@trace, '$**.considered_execution_plans'),
'$[0]'
)
) as JS;
select JSON_DETAILED(JSON_EXTRACT(@trace, '$**.selectivity_for_indexes')) as JS;
--echo # Ensure that we only use selectivity from non used index for simple cases
select count(*) from t1 where (a=2 and b= 5);
select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) as JS
from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
--echo # All of the following should have selectivity=1 for index 'b'
select count(*) from t1 where (a=2 and b between 0 and 100);
select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) as JS
from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
select count(*) from t1 where (a in (2,3) and b between 0 and 100);
select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) as JS
from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
select count(*) from t1 where (a>2 and b between 0 and 100);
select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) as JS
from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
select count(*) from t1 where (a>=2 and b between 0 and 100);
select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) as JS
from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
select count(*) from t1 where (a<=2 and b between 0 and 100);
select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) as JS
from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
select count(*) from t1 where (a<2 and b between 0 and 100);
select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) as JS
from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
select count(*) from t1 where (a between 2 and 3 and b between 0 and 100);
select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) as JS
from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
drop table t1;
set optimizer_trace='enabled=off';
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