# # MDEV-371 Unique indexes for blobs # --echo #structure of tests; --echo #1 test of table containing single unique blob column; --echo #2 test of table containing another unique int/ varchar etc column; --echo #3 test of table containing multiple unique blob column like unique(a),unique(b); --echo #4 test of table containing multiple multiple unique blob column like unique(a,b...),unique(c,d....); --echo #structure of each test; --echo #test if update works; --echo #test update for duplicate entry; --echo #test update for no change keys; --echo #test update for ignore ; --echo #test 1 create table t1 (a blob unique); query_vertical show keys from t1; insert into t1 values(1),(2),(3),(4),(5); select * from t1; update t1 set a=11 where a=5; update t1 set a=a+20 where a=1; select * from t1; --error ER_DUP_ENTRY update t1 set a=3 where a=2; --error ER_DUP_ENTRY update t1 set a=4 where a=3; --echo #no change in blob key update t1 set a=3 where a=3; update t1 set a=2 where a=2; select* from t1; --echo #IGNORE; update ignore t1 set a=3 where a=2; update ignore t1 set a=4 where a=3; select * from t1; drop table t1; --echo #test 2; create table t1 (a int primary key, b blob unique , c int unique ); show keys from t1; insert into t1 values(1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),(6,6,6),(7,7,7); select * from t1 limit 3; update t1 set b=34 where a=1; update t1 set b=a+c+b+34 where b=2; update t1 set b=a+10+b where c=3; select * from t1; truncate table t1; insert into t1 values(1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),(6,6,6),(7,7,7); --error ER_DUP_ENTRY update t1 set b=4 where a=3; --error ER_DUP_ENTRY update t1 set b=a+1 where b=3; --error ER_DUP_ENTRY update t1 set b=a+1 where c=3; --echo #no change in blob key update t1 set b=3 where a=3; update t1 set b=2 where b=2; update t1 set b=5 where c=5; select* from t1; --echo #IGNORE; update ignore t1 set b=3 where a=2; update ignore t1 set b=4 where b=3; update ignore t1 set b=5 where c=3; select * from t1; drop table t1; --echo #test 3; create table t1 (a blob unique, b blob unique , c blob unique); show keys from t1; insert into t1 values(1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),(6,6,6),(7,7,7); select * from t1 limit 3; update t1 set b=34 where a=1; update t1 set b=a+c+b+34 where b=2; update t1 set b=a+10+b where c=3; select * from t1; truncate table t1; insert into t1 values(1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),(6,6,6),(7,7,7); --error ER_DUP_ENTRY update t1 set b=4 where a=3; --error ER_DUP_ENTRY update t1 set b=a+1 where b=3; --error ER_DUP_ENTRY update t1 set b=a+1 where c=3; --echo #no change in blob key update t1 set b=3 where a=3; update t1 set b=2 where b=2; update t1 set b=5 where c=5; select* from t1; --echo #IGNORE; update ignore t1 set b=3 where a=2; update ignore t1 set b=4 where b=3; update ignore t1 set b=5 where c=3; update ignore t1 set b=b+3 where a>1 or b>1 or c>1; select * from t1; update ignore t1 set b=b+5 where a>1 and b<5 and c0; update ignore t1 set b=b+1, c=c+1 where a>0; select * from t1 ; truncate table t1; insert into t1 values(1,1,1,1,1,1,1),(2,2,2,2,2,2,2),(3,3,3,3,3,3,3),(4,4,4,4,4,4,4), (5,5,5,5,5,5,5),(6,6,6,6,6,6,6),(7,7,7,7,7,7,7),(8,8,8,8,8,8,8),(9,9,9,9,9,9,9); --echo #key b_f no hash key --error ER_DUP_ENTRY update t1 set b=2 , f=2 where a=1; update t1 set b=b+33, f=f+33 where e=1 and g=1; update t1 set b=34, f=34 where e=1 and g=1 ; --error ER_DUP_ENTRY update t1 set b=b+1, f=f+1 where a>0; update ignore t1 set b=b+1, f=f+1 where a>0; select * from t1 ; truncate table t1; insert into t1 values(1,1,1,1,1,1,1),(2,2,2,2,2,2,2),(3,3,3,3,3,3,3),(4,4,4,4,4,4,4), (5,5,5,5,5,5,5),(6,6,6,6,6,6,6),(7,7,7,7,7,7,7),(8,8,8,8,8,8,8),(9,9,9,9,9,9,9); --echo #key e_g --error ER_DUP_ENTRY update t1 set e=2 , g=2 where a=1; update t1 set e=e+34, g=g+34 where a=1; update t1 set e=34, g=34 where e=1 and g=1 ; select * from t1 where a=1; --error ER_DUP_ENTRY update t1 set e=e+1, g=g+1 where a>0; update ignore t1 set e=e+1, g=g+1 where a>0; select * from t1 ; drop table t1;