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table type possible_keys key key_len ref rows Extra
t1 ref a a 5 const 3 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 9 const,const 1 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 9 const,const 1 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 const a,b a 9 const,const 1
table type possible_keys key key_len ref rows Extra
t1 index NULL a 8 NULL 12 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 range a,b a 9 NULL 3 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 ref a,b b 4 const 2 where used
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 range a,b a 9 NULL 2 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 range a a 5 NULL 1 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 range a a 5 NULL 1 where used; Using index
a b
NULL 7
NULL 9
NULL 9
a b
NULL 7
a b
1 1
2 2
a b
1 1
2 2
a b
NULL 9
NULL 9
a b
NULL 7
7 7
a b
NULL 7
NULL 9
NULL 9
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 where used
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 where used
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 where used
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 1 where used
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 12 where used
table type possible_keys key key_len ref rows Extra
t1 range a,b a 5 NULL 12 where used
table type possible_keys key key_len ref rows Extra
t1 range a,b a 5 NULL 4 where used
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 where used
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 where used
table type possible_keys key key_len ref rows Extra
t1 range a a 5 NULL 1 where used
table type possible_keys key key_len ref rows Extra
t1 range a,b a 5 NULL 4 where used
table type possible_keys key key_len ref rows Extra
t1 range a a 5 NULL 1 where used
table type possible_keys key key_len ref rows Extra
t1 range b b 12 NULL 1 where used
a b c
NULL 7 0
NULL 9 0
NULL 9 0
a b c
NULL 7 0
a b c
1 1 0
2 2 0
a b c
1 1 0
2 2 0
a b c
NULL 9 0
NULL 9 0
a b c
NULL 7 0
7 7 0
a b c
NULL 7 0
NULL 9 0
NULL 9 0
a b c
6 6 0
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