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#
# ROR-index_merge tests.
#
--disable_warnings
drop table if exists t0,t1,t2;
--enable_warnings
--disable_query_log
create table t1
(
/* Field names reflect value(rowid) distribution, st=STairs, swt= SaWTooth */
st_a int not null,
swt1a int not null,
swt2a int not null,
st_b int not null,
swt1b int not null,
swt2b int not null,
/* fields/keys for row retrieval tests */
key1 int,
key2 int,
key3 int,
key4 int,
/* make rows much bigger then keys */
filler1 char (200),
filler2 char (200),
filler3 char (200),
filler4 char (200),
filler5 char (200),
filler6 char (200),
/* order of keys is important */
key sta_swt12a(st_a,swt1a,swt2a),
key sta_swt1a(st_a,swt1a),
key sta_swt2a(st_a,swt2a),
key sta_swt21a(st_a,swt2a,swt1a),
key st_a(st_a),
key stb_swt1a_2b(st_b,swt1b,swt2a),
key stb_swt1b(st_b,swt1b),
key st_b(st_b),
key(key1),
key(key2),
key(key3),
key(key4)
) ;
# Fill table
create table t0 as select * from t1;
let $cnt=1000;
while ($cnt)
{
eval insert into t0 values (1, 2, 3, 1, 2, 3, 0, 0, 0, 0, 'data1', 'data2', 'data3', 'data4', 'data5', 'data6');
dec $cnt;
}
alter table t1 disable keys;
let $1=4;
while ($1)
{
let $2=4;
while ($2)
{
let $3=4;
while ($3)
{
eval insert into t1 select $1, $2, $3, $1 ,$2, $3, key1, key2, key3, key4, filler1, filler2, filler3, filler4, filler5, filler6 from t0;
dec $3;
}
dec $2;
}
dec $1;
}
# Row retrieval tests
# -1 is used for values 'out of any range we are using'
# insert enough rows for index intersection to be used for (key1,key2)
insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 100, 100,'key1-key2-key3-key4');
let $cnt=400;
while ($cnt)
{
eval insert into t1 (key1, key2, key3, key4, filler1) values (100, -1, 100, -1,'key1-key3');
dec $cnt;
}
let $cnt=400;
while ($cnt)
{
eval insert into t1 (key1, key2, key3, key4, filler1) values (-1, 100, -1, 100,'key2-key4');
dec $cnt;
}
alter table t1 enable keys;
--enable_query_log
select count(*) from t1;
# One row results tests for cases where a single row matches all conditions
explain select key1,key2 from t1 where key1=100 and key2=100;
select key1,key2 from t1 where key1=100 and key2=100;
explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
# Several-rows results
insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, -1, -1, 'key1-key2');
insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, 100, 100, 'key4-key3');
# ROR-intersection, not covering
explain select key1,key2,filler1 from t1 where key1=100 and key2=100;
select key1,key2,filler1 from t1 where key1=100 and key2=100;
# ROR-intersection, covering
explain select key1,key2 from t1 where key1=100 and key2=100;
select key1,key2 from t1 where key1=100 and key2=100;
# ROR-union of ROR-intersections
explain select key1,key2,key3,key4 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
select key1,key2,key3,key4 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
# 3-way ROR-intersection
explain select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100;
select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100;
# ROR-union(ROR-intersection, ROR-range)
insert into t1 (key1,key2,key3,key4,filler1) values (101,101,101,101, 'key1234-101');
explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=101;
select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=101;
# Run some ROR updates/deletes
select key1,key2, filler1 from t1 where key1=100 and key2=100;
update t1 set filler1='to be deleted' where key1=100 and key2=100;
update t1 set key1=200,key2=200 where key1=100 and key2=100;
delete from t1 where key1=200 and key2=200;
select key1,key2,filler1 from t1 where key2=100 and key2=200;
# ROR-union(ROR-intersection) with one of ROR-intersection giving empty
# results
explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
delete from t1 where key3=100 and key4=100;
# ROR-union with all ROR-intersections giving empty results
explain select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
select key1,key2,key3,key4,filler1 from t1 where key1=100 and key2=100 or key3=100 and key4=100;
# ROR-intersection with empty result
explain select key1,key2 from t1 where key1=100 and key2=100;
select key1,key2 from t1 where key1=100 and key2=100;
# ROR-union tests with various cases.
# All scans returning duplicate rows:
insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-1');
insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-2');
insert into t1 (key1, key2, key3, key4, filler1) values (100, 100, 200, 200,'key1-key2-key3-key4-3');
explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, -1, 200,'key4');
explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
insert into t1 (key1, key2, key3, key4, filler1) values (-1, -1, 200, -1,'key3');
explain select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
select key1,key2,key3,key4,filler1 from t1 where key3=200 or (key1=100 and key2=100) or key4=200;
##
## Optimizer tests
##
# Check that the shortest key is used for ROR-intersection, covering and non-covering.
explain select * from t1 where st_a=1 and st_b=1;
explain select st_a,st_b from t1 where st_a=1 and st_b=1;
# Check if "ingore index" syntax works
explain select st_a from t1 ignore index (st_a) where st_a=1 and st_b=1;
# Do many tests
# Check that keys that don't improve selectivity are skipped.
#
explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1;
explain select * from t1 where st_b=1 and swt1b=1 and swt2b=1;
explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
explain select * from t1 ignore index (sta_swt21a, stb_swt1a_2b)
where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
explain select * from t1 ignore index (sta_swt21a, sta_swt12a, stb_swt1a_2b)
where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
explain select * from t1 ignore index (sta_swt21a, sta_swt12a, stb_swt1a_2b, stb_swt1b)
where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
explain select * from t1
where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1;
explain select * from t1
where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
explain select st_a from t1
where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
explain select st_a from t1
where st_a=1 and swt1a=1 and st_b=1 and swt1b=1 and swt1b=1;
drop table t0,t1;
# 'Partially' covered fields test
create table t2 (
a char(10),
b char(10),
filler1 char(255),
filler2 char(255),
key(a(5)),
key(b(5))
);
--disable_query_log
let $1=8;
while ($1)
{
eval insert into t2 values (repeat(char($1+64), 8),repeat(char($1+64), 8),'filler1', 'filler2');
dec $1;
}
insert into t2 select * from t2;
insert into t2 select * from t2;
--enable_query_log
# The table row buffer is reused. Fill it with rows that don't match.
select count(a) from t2 where a='BBBBBBBB';
select count(a) from t2 where b='BBBBBBBB';
# BUG#1:
explain select count(a) from t2 where a='AAAAAAAA' and b='AAAAAAAA';
select count(a) from t2 where a='AAAAAAAA' and b='AAAAAAAA';
select count(a) from t2 ignore index(a,b) where a='AAAAAAAA' and b='AAAAAAAA';
insert into t2 values ('ab', 'ab', 'uh', 'oh');
explain select a from t2 where a='ab';
drop table t2;
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