--source include/have_sequence.inc # # Test of heap tables. # --disable_warnings drop table if exists t1; --enable_warnings create table t1 (a int not null,b int not null, primary key using BTREE (a)) engine=heap comment="testing heaps" avg_row_length=100 min_rows=1 max_rows=100; insert into t1 values(1,1),(2,2),(3,3),(4,4); delete from t1 where a=1 or a=0; #show table status like "t1"; show keys from t1; select * from t1; select * from t1 where a=4; update t1 set b=5 where a=4; update t1 set b=b+1 where a>=3; replace t1 values (3,3); select * from t1; alter table t1 add c int not null, add key using BTREE (c,a); drop table t1; create table t1 (a int not null,b int not null, primary key using BTREE (a)) engine=heap comment="testing heaps"; insert into t1 values(-2,-2),(-1,-1),(0,0),(1,1),(2,2),(3,3),(4,4); delete from t1 where a > -3; select * from t1; drop table t1; create table t1 (a int not null,b int not null, primary key using BTREE (a)) engine=heap comment="testing heaps"; insert into t1 values(1,1),(2,2),(3,3),(4,4); alter table t1 modify a int not null auto_increment, engine=myisam, comment="new myisam table"; #show table status like "t1"; select * from t1; drop table t1; create table t1 (a int not null) engine=heap; insert into t1 values (869751),(736494),(226312),(802616),(728912); select * from t1 where a > 736494; alter table t1 add unique uniq_id using BTREE (a); --sorted_result select * from t1 where a > 736494; select * from t1 where a = 736494; select * from t1 where a=869751 or a=736494; --sorted_result select * from t1 where a in (869751,736494,226312,802616); explain select * from t1 where a in (869751,736494,226312,802616); alter table t1 engine=myisam; explain select * from t1 where a in (869751,736494,226312,802616); insert into t1 values (1),(2),(3),(4),(5),(6); explain select * from t1 where a in (869751,736494,226312,802616); drop table t1; create table t1 (x int not null, y int not null, key x using BTREE (x,y), unique y using BTREE (y)) engine=heap; insert into t1 values (1,1),(2,2),(1,3),(2,4),(2,5),(2,6); explain select * from t1 where x=1; select * from t1 where x=1; select * from t1,t1 as t2 where t1.x=t2.y; explain select * from t1,t1 as t2 where t1.x=t2.y; drop table t1; create table t1 (a int) engine=heap; insert into t1 values(1); select max(a) from t1; drop table t1; CREATE TABLE t1 ( a int not null default 0, b int not null default 0, key using BTREE (a,b), key using BTREE (b) ) ENGINE=HEAP; insert into t1 values(1,1),(1,2),(2,3),(1,3),(1,4),(1,5),(1,6); select * from t1 where a=1; insert into t1 values(1,1),(1,2),(2,3),(1,3),(1,4),(1,5),(1,6); select * from t1 where a=1; --replace_result 0 x 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x explain select * from t1 where a=1 order by a,b; --replace_result 0 x 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x explain select * from t1 where a=1 order by b; select * from t1 where b=1; --replace_result 0 x 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x explain select * from t1 where b=1; drop table t1; create table t1 (id int unsigned not null, primary key using BTREE (id)) engine=HEAP; insert into t1 values(1); select max(id) from t1; insert into t1 values(2); select max(id) from t1; replace into t1 values(1); drop table t1; create table t1 (n int) engine=heap; drop table t1; create table t1 (n int) engine=heap; drop table if exists t1; # Test of non unique index CREATE table t1(f1 int not null,f2 char(20) not null,index(f2)) engine=heap; INSERT into t1 set f1=12,f2="bill"; INSERT into t1 set f1=13,f2="bill"; INSERT into t1 set f1=14,f2="bill"; INSERT into t1 set f1=15,f2="bill"; INSERT into t1 set f1=16,f2="ted"; INSERT into t1 set f1=12,f2="ted"; INSERT into t1 set f1=12,f2="ted"; INSERT into t1 set f1=12,f2="ted"; INSERT into t1 set f1=12,f2="ted"; delete from t1 where f2="bill"; select * from t1; drop table t1; # # Test when using part key searches # create table t1 (btn char(10) not null, key using BTREE (btn)) engine=heap; insert into t1 values ("hello"),("hello"),("hello"),("hello"),("hello"),("hello"),("hello"), ("a"),("b"),("c"),("d"),("e"),("f"),("g"),("h"),("i"); explain select * from t1 where btn like "i%"; --replace_column 9 # explain select * from t1 where btn like "h%"; explain select * from t1 where btn like "a%"; explain select * from t1 where btn like "b%"; # For the following the BTREE MAY notice that there is no possible matches select * from t1 where btn like "ff%"; select * from t1 where btn like " %"; select * from t1 where btn like "q%"; alter table t1 add column new_col char(1) not null, add key using BTREE (btn,new_col), drop key btn; update t1 set new_col=left(btn,1); explain select * from t1 where btn="a"; explain select * from t1 where btn="a" and new_col="a"; drop table t1; # # Test of NULL keys # CREATE TABLE t1 ( a int default NULL, b int default NULL, KEY a using BTREE (a), UNIQUE b using BTREE (b) ) engine=heap; INSERT INTO t1 VALUES (NULL,99),(99,NULL),(1,1),(2,2),(1,3); SELECT * FROM t1 WHERE a=NULL; explain SELECT * FROM t1 WHERE a IS NULL; SELECT * FROM t1 WHERE a<=>NULL; SELECT * FROM t1 WHERE b=NULL; explain SELECT * FROM t1 WHERE b IS NULL; SELECT * FROM t1 WHERE b<=>NULL; --error ER_DUP_ENTRY INSERT INTO t1 VALUES (1,3); DROP TABLE t1; CREATE TABLE t1 (a int, b int, c int, key using BTREE (a, b, c)) engine=heap; INSERT INTO t1 VALUES (1, NULL, NULL), (1, 1, NULL), (1, NULL, 1); SELECT * FROM t1 WHERE a=1 and b IS NULL; SELECT * FROM t1 WHERE a=1 and c IS NULL; SELECT * FROM t1 WHERE a=1 and b IS NULL and c IS NULL; DROP TABLE t1; # # Test when deleting all rows # CREATE TABLE t1 (a int not null, primary key using BTREE (a)) engine=heap; INSERT into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11); DELETE from t1 where a < 100; SELECT * from t1; DROP TABLE t1; # # Bug #9719: problem with delete # create table t1(a int not null, key using btree(a)) engine=heap; insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3); select a from t1 where a > 2 order by a; delete from t1 where a < 4; select a from t1 order by a; insert into t1 values (2), (2), (2), (1), (1), (3), (3), (3), (3); select a from t1 where a > 4 order by a; delete from t1 where a > 4; select a from t1 order by a; select a from t1 where a > 3 order by a; delete from t1 where a >= 2; select a from t1 order by a; drop table t1; # # Bug#26996 - Update of a Field in a Memory Table ends with wrong result # CREATE TABLE t1 ( c1 CHAR(3), c2 INTEGER, KEY USING BTREE(c1), KEY USING BTREE(c2) ) ENGINE= MEMORY; INSERT INTO t1 VALUES ('ABC',0), ('A',0), ('B',0), ('C',0); UPDATE t1 SET c2= c2 + 1 WHERE c1 = 'A'; SELECT * FROM t1; DROP TABLE t1; # # Bug#24985 - UTF8 ENUM primary key on MEMORY using BTREE # causes incorrect duplicate entries # CREATE TABLE t1 ( c1 ENUM('1', '2'), UNIQUE USING BTREE(c1) ) ENGINE= MEMORY DEFAULT CHARSET= utf8; INSERT INTO t1 VALUES('1'), ('2'); DROP TABLE t1; CREATE TABLE t1 ( c1 SET('1', '2'), UNIQUE USING BTREE(c1) ) ENGINE= MEMORY DEFAULT CHARSET= utf8; INSERT INTO t1 VALUES('1'), ('2'); DROP TABLE t1; # # BUG#30590 - delete from memory table with composite btree primary key # CREATE TABLE t1 (a INT, KEY USING BTREE(a)) ENGINE=MEMORY; INSERT INTO t1 VALUES(1),(2),(2); DELETE FROM t1 WHERE a=2; SELECT * FROM t1; DROP TABLE t1; --echo End of 4.1 tests # # BUG#18160 - Memory-/HEAP Table endless growing indexes # CREATE TABLE t1(val INT, KEY USING BTREE(val)) ENGINE=memory; INSERT INTO t1 VALUES(0); --replace_result 37 21 SELECT INDEX_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='t1'; UPDATE t1 SET val=1; --replace_result 37 21 SELECT INDEX_LENGTH FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='t1'; DROP TABLE t1; # # BUG#12873 - BTREE index on MEMORY table with multiple NULL values doesn't # work properly # CREATE TABLE t1 (a INT, UNIQUE USING BTREE(a)) ENGINE=MEMORY; INSERT INTO t1 VALUES(NULL),(NULL); DROP TABLE t1; # # Bug #30885: MEMORY returns incorrect data if BTREE index is used for NULL lookup # create table t1(a varchar(255), b varchar(255), key using btree (a,b)) engine=memory; insert into t1 values (1, 1), (3, 3), (2, 2), (NULL, 1), (NULL, NULL), (0, 0); select * from t1 where a is null; drop table t1; -- echo # -- echo # bug#39918 - memory (heap) engine crashing while executing self join with delete -- echo # CREATE TABLE t1(a INT, KEY USING BTREE (a)) ENGINE=MEMORY; INSERT INTO t1 VALUES(1),(1); DELETE a1 FROM t1 AS a1, t1 AS a2 WHERE a1.a=a2.a; DROP TABLE t1; --echo End of 5.0 tests -- echo # bit index in heap tables create table t1 (a bit(63) not null) engine=heap; insert into t1 values (869751),(736494),(226312),(802616),(728912); alter table t1 add unique uniq_id using BTREE (a); --sorted_result select 0+a from t1 where a > 736494; explain select 0+a from t1 where a > 736494; select 0+a from t1 where a = 736494; explain select 0+a from t1 where a = 736494; select 0+a from t1 where a=869751 or a=736494; explain select 0+a from t1 where a=869751 or a=736494; insert into t1 (a) select * from seq_1_to_100; select 0+a from t1 where a in (869751,736494,226312,802616); explain select 0+a from t1 where a in (869751,736494,226312,802616); drop table t1; --echo End of 5.3 tests # # Bug#27799513: POTENTIAL DOUBLE FREE OR CORRUPTION OF HEAP INFO (HP_INFO) # create table t1 (id int, a varchar(300) not null, key using btree(a)) engine=heap; insert t1 values (1, repeat('a', 300)); drop table t1; --echo End of 5.5 tests