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318 lines
7.7 KiB
Text
318 lines
7.7 KiB
Text
#structure of tests;
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#1 test of table containing single unique blob column;
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#2 test of table containing another unique int/ varchar etc column;
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#3 test of table containing multiple unique blob column like unique(a),unique(b);
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#4 test of table containing multiple multiple unique blob column like unique(a,b...),unique(c,d....);
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#structure of each test;
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#test if update works;
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#test update for duplicate entry;
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#test update for no change keys;
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#test update for ignore ;
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#test 1
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create table t1 (a blob unique);
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show keys from t1;
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Table t1
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Non_unique 0
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Key_name a
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Seq_in_index 1
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Column_name a
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Collation A
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Cardinality NULL
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Sub_part NULL
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Packed NULL
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Null YES
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Index_type HASH
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Comment
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Index_comment
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Ignored NO
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insert into t1 values(1),(2),(3),(4),(5);
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select * from t1;
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a
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1
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2
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3
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4
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5
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update t1 set a=11 where a=5;
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update t1 set a=a+20 where a=1;
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select * from t1;
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a
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21
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2
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3
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4
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11
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update t1 set a=3 where a=2;
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ERROR 23000: Duplicate entry '3' for key 'a'
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update t1 set a=4 where a=3;
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ERROR 23000: Duplicate entry '4' for key 'a'
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#no change in blob key
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update t1 set a=3 where a=3;
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update t1 set a=2 where a=2;
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select* from t1;
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a
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21
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2
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3
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4
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11
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#IGNORE;
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update ignore t1 set a=3 where a=2;
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update ignore t1 set a=4 where a=3;
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select * from t1;
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a
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21
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2
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3
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4
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11
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drop table t1;
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#test 2;
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create table t1 (a int primary key, b blob unique , c int unique );
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show keys from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t1 0 PRIMARY 1 a A 0 NULL NULL BTREE NO
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t1 0 c 1 c A NULL NULL NULL YES BTREE NO
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t1 0 b 1 b A NULL NULL NULL YES HASH NO
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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);
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select * from t1 limit 3;
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a b c
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1 1 1
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2 2 2
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3 3 3
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update t1 set b=34 where a=1;
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update t1 set b=a+c+b+34 where b=2;
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update t1 set b=a+10+b where c=3;
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select * from t1;
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a b c
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1 34 1
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2 40 2
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3 16 3
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4 4 4
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5 5 5
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6 6 6
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7 7 7
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truncate table t1;
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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);
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update t1 set b=4 where a=3;
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ERROR 23000: Duplicate entry '4' for key 'b'
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update t1 set b=a+1 where b=3;
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ERROR 23000: Duplicate entry '4' for key 'b'
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update t1 set b=a+1 where c=3;
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ERROR 23000: Duplicate entry '4' for key 'b'
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#no change in blob key
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update t1 set b=3 where a=3;
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update t1 set b=2 where b=2;
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update t1 set b=5 where c=5;
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select* from t1;
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a b c
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1 1 1
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2 2 2
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3 3 3
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4 4 4
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5 5 5
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6 6 6
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7 7 7
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#IGNORE;
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update ignore t1 set b=3 where a=2;
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update ignore t1 set b=4 where b=3;
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update ignore t1 set b=5 where c=3;
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select * from t1;
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a b c
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1 1 1
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2 2 2
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3 3 3
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4 4 4
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5 5 5
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6 6 6
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7 7 7
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drop table t1;
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#test 3;
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create table t1 (a blob unique, b blob unique , c blob unique);
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show keys from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t1 0 a 1 a A NULL NULL NULL YES HASH NO
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t1 0 b 1 b A NULL NULL NULL YES HASH NO
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t1 0 c 1 c A NULL NULL NULL YES HASH NO
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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);
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select * from t1 limit 3;
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a b c
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1 1 1
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2 2 2
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3 3 3
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update t1 set b=34 where a=1;
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update t1 set b=a+c+b+34 where b=2;
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update t1 set b=a+10+b where c=3;
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select * from t1;
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a b c
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1 34 1
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2 40 2
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3 16 3
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4 4 4
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5 5 5
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6 6 6
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7 7 7
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truncate table t1;
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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);
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update t1 set b=4 where a=3;
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ERROR 23000: Duplicate entry '4' for key 'b'
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update t1 set b=a+1 where b=3;
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ERROR 23000: Duplicate entry '4' for key 'b'
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update t1 set b=a+1 where c=3;
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ERROR 23000: Duplicate entry '4' for key 'b'
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#no change in blob key
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update t1 set b=3 where a=3;
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update t1 set b=2 where b=2;
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update t1 set b=5 where c=5;
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select* from t1;
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a b c
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1 1 1
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2 2 2
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3 3 3
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4 4 4
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5 5 5
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6 6 6
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7 7 7
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#IGNORE;
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update ignore t1 set b=3 where a=2;
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update ignore t1 set b=4 where b=3;
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update ignore t1 set b=5 where c=3;
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update ignore t1 set b=b+3 where a>1 or b>1 or c>1;
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select * from t1;
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a b c
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1 1 1
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2 2 2
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3 3 3
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4 4 4
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5 8 5
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6 9 6
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7 10 7
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update ignore t1 set b=b+5 where a>1 and b<5 and c<a+b;
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select * from t1;
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a b c
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1 1 1
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2 7 2
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3 3 3
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4 4 4
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5 8 5
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6 9 6
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7 10 7
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drop table t1;
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#test 4 ultimate test;
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create table t1 (a int primary key , b int, c blob , d blob , e varchar(2000), f int , g text,
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unique (b,c), unique (b,f),unique(e,g),unique(a,b,c,d,e,f,g));
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desc t1;
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Field Type Null Key Default Extra
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a int(11) NO PRI NULL
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b int(11) YES MUL NULL
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c blob YES NULL
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d blob YES NULL
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e varchar(2000) YES MUL NULL
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f int(11) YES NULL
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g text YES NULL
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL,
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`b` int(11) DEFAULT NULL,
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`c` blob DEFAULT NULL,
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`d` blob DEFAULT NULL,
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`e` varchar(2000) DEFAULT NULL,
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`f` int(11) DEFAULT NULL,
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`g` text DEFAULT NULL,
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PRIMARY KEY (`a`),
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UNIQUE KEY `b_2` (`b`,`f`),
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UNIQUE KEY `b` (`b`,`c`) USING HASH,
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UNIQUE KEY `e` (`e`,`g`) USING HASH,
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UNIQUE KEY `a` (`a`,`b`,`c`,`d`,`e`,`f`,`g`) USING HASH
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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show keys from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t1 0 PRIMARY 1 a A 0 NULL NULL BTREE NO
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t1 0 b_2 1 b A NULL NULL NULL YES BTREE NO
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t1 0 b_2 2 f A NULL NULL NULL YES BTREE NO
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t1 0 b 1 b A NULL NULL NULL YES HASH NO
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t1 0 b 2 c A NULL NULL NULL YES HASH NO
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t1 0 e 1 e A NULL NULL NULL YES HASH NO
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t1 0 e 2 g A NULL NULL NULL YES HASH NO
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t1 0 a 1 a A NULL NULL NULL HASH NO
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t1 0 a 2 b A NULL NULL NULL YES HASH NO
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t1 0 a 3 c A NULL NULL NULL YES HASH NO
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t1 0 a 4 d A NULL NULL NULL YES HASH NO
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t1 0 a 5 e A NULL NULL NULL YES HASH NO
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t1 0 a 6 f A NULL NULL NULL YES HASH NO
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t1 0 a 7 g A NULL NULL NULL YES HASH NO
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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),
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(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);
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select * from t1 limit 3;
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a b c d e f g
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1 1 1 1 1 1 1
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2 2 2 2 2 2 2
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3 3 3 3 3 3 3
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#key b_c
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update t1 set b=2 ,c=2 where a=1;
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ERROR 23000: Duplicate entry '2-2' for key 'b'
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update t1 set b=b+34, c=c+34 where e=1 and g=1 ;
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update t1 set b=35, c=35 where e=1 and g=1 ;
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update t1 set b=b+1, c=c+1 where a>0;
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ERROR 23000: Duplicate entry '3-3' for key 'b'
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update ignore t1 set b=b+1, c=c+1 where a>0;
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select * from t1 ;
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a b c d e f g
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1 37 37 1 1 1 1
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2 2 2 2 2 2 2
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3 3 3 3 3 3 3
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4 4 4 4 4 4 4
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5 5 5 5 5 5 5
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6 6 6 6 6 6 6
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7 7 7 7 7 7 7
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8 8 8 8 8 8 8
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9 10 10 9 9 9 9
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truncate table t1;
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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),
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(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);
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#key b_f no hash key
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update t1 set b=2 , f=2 where a=1;
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ERROR 23000: Duplicate entry '2-2' for key 'b_2'
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update t1 set b=b+33, f=f+33 where e=1 and g=1;
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update t1 set b=34, f=34 where e=1 and g=1 ;
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update t1 set b=b+1, f=f+1 where a>0;
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ERROR 23000: Duplicate entry '3-3' for key 'b_2'
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update ignore t1 set b=b+1, f=f+1 where a>0;
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select * from t1 ;
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a b c d e f g
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1 36 1 1 1 36 1
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2 2 2 2 2 2 2
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3 3 3 3 3 3 3
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4 4 4 4 4 4 4
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5 5 5 5 5 5 5
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6 6 6 6 6 6 6
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7 7 7 7 7 7 7
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8 8 8 8 8 8 8
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9 10 9 9 9 10 9
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truncate table t1;
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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),
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(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);
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#key e_g
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update t1 set e=2 , g=2 where a=1;
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ERROR 23000: Duplicate entry '2-2' for key 'e'
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update t1 set e=e+34, g=g+34 where a=1;
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update t1 set e=34, g=34 where e=1 and g=1 ;
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select * from t1 where a=1;
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a b c d e f g
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1 1 1 1 35 1 35
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update t1 set e=e+1, g=g+1 where a>0;
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ERROR 23000: Duplicate entry '3-3' for key 'e'
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update ignore t1 set e=e+1, g=g+1 where a>0;
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select * from t1 ;
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a b c d e f g
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1 1 1 1 37 1 37
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2 2 2 2 2 2 2
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3 3 3 3 3 3 3
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4 4 4 4 4 4 4
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5 5 5 5 5 5 5
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6 6 6 6 6 6 6
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7 7 7 7 7 7 7
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8 8 8 8 8 8 8
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9 9 9 9 10 9 10
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drop table t1;
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