--disable_query_log # DATA DIRECTORY eval SET @data_dir = 'DATA DIRECTORY = ''/tmp'''; let $data_directory = `select @data_dir`; #INDEX DIRECTORY eval SET @indx_dir = 'INDEX DIRECTORY = ''/tmp'''; let $index_directory = `select @indx_dir`; --enable_query_log eval create table t1 (a float not null, primary key(a)) engine=$engine partition by key (a) ( partition pa1 $data_directory $index_directory max_rows=20 min_rows=2, partition pa2 $data_directory $index_directory max_rows=30 min_rows=3, partition pa3 $data_directory $index_directory max_rows=30 min_rows=4, partition pa4 $data_directory $index_directory max_rows=40 min_rows=2); show create table t1; insert into t1 values (-3.402823466E+38), (3.402823466E+38), (-1.5), (-1), (0), (1), (1.5); select * from t1; select * from t1 where a=1.5; delete from t1 where a=1.5; select * from t1; drop table t1; eval create table t2 (a float not null, primary key(a)) engine=$engine partition by key (a) partitions 10; show create table t2; insert into t2 values (-3.402823466E+38), (-3.402823466E+37), (-123.456), (0), (1234546.789), (123.456), (1.5); select * from t2; #result set is empty: Not a bug with float!! select * from t2 where a=123.456; delete from t2 where a=123.456; select * from t2; select * from t2 where a=1.5; delete from t2 where a=1.5; select * from t2; delete from t2; let $count=$maxrows; --echo $maxrows*3 inserts; --disable_query_log while ($count) { eval insert into t2 values ($count); eval insert into t2 values ($count+0.33); eval insert into t2 values ($count+0.75); dec $count; } --enable_query_log select count(*) from t2; drop table t2; eval create table t3 (a float not null, primary key(a)) engine=$engine partition by range (cast(floor(a) as signed)) subpartition by key (a) subpartitions 3 ( partition pa1 values less than (3), partition pa3 values less than (6), partition pa10 values less than (10) ); show create table t3; let $count=9; --echo $count*3 inserts; while ($count) { eval insert into t3 values ($count); eval insert into t3 values ($count+0.33); eval insert into t3 values ($count+0.75); dec $count; } select count(*) from t3; select * from t3; drop table t3; eval create table t4 (a float not null, primary key(a)) engine=$engine partition by list (cast(floor(a) as signed)) subpartition by key (a) subpartitions 3 ( partition pa1 values in (1,2,3), partition pa3 values in (4,5,6), partition pa10 values in (7,8,9,10) ); show create table t4; let $count=9; --echo $count*3 inserts; while ($count) { eval insert into t4 values ($count); eval insert into t4 values ($count+0.33); eval insert into t4 values ($count+0.75); dec $count; } select count(*) from t4; select * from t4; drop table t4;