@@ -1328,19 +1328,19 @@ select t2.fld3 from t2 where fld3 LIKE 'don_t_find_me_please%';
fld3
explain select t2.fld3 from t2 where fld3 = 'honeysuckle';
table type possible_keys key key_len ref rows Extra
t2 ref fld3 fld3 30 const 1 where used; Using index
t2 ref fld3 fld3 30 const 1 Using where; Using index
explain select fld3 from t2 ignore index (fld3) where fld3 = 'honeysuckle';
table type possible_keys key key_len ref rows Extra
t2 index NULL fld3 30 NULL 1199 where used; Using index
t2 index NULL fld3 30 NULL 1199 Using where; Using index
explain select fld3 from t2 use index (fld1) where fld3 = 'honeysuckle';
table type possible_keys key key_len ref rows Extra
t2 index NULL fld3 30 NULL 1199 where used; Using index
t2 index NULL fld3 30 NULL 1199 Using where; Using index
explain select fld3 from t2 use index (fld3) where fld3 = 'honeysuckle';
table type possible_keys key key_len ref rows Extra
t2 ref fld3 fld3 30 const 1 where used; Using index
t2 ref fld3 fld3 30 const 1 Using where; Using index
explain select fld3 from t2 use index (fld1,fld3) where fld3 = 'honeysuckle';
table type possible_keys key key_len ref rows Extra
t2 ref fld3 fld3 30 const 1 where used; Using index
t2 ref fld3 fld3 30 const 1 Using where; Using index
explain select fld3 from t2 ignore index (fld3,not_used);
Key column 'not_used' doesn't exist in table
explain select fld3 from t2 use index (not_used);
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@@ -1351,7 +1351,7 @@ honeysuckle
honoring
explain select t2.fld3 from t2 where fld3 >= 'honeysuckle' and fld3 <= 'honoring' order by fld3;
table type possible_keys key key_len ref rows Extra
t2 range fld3 fld3 30 NULL 2 where used; Using index
t2 range fld3 fld3 30 NULL 2 Using where; Using index
select fld1,fld3 from t2 where fld3="Colombo" or fld3 = "nondecreasing" order by fld3;
fld1 fld3
148504 Colombo
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@@ -1371,7 +1371,7 @@ fld1
250502
explain select fld1 from t2 where fld1=250501 or fld1="250502";
table type possible_keys key key_len ref rows Extra
t2 range fld1 fld1 4 NULL 2 where used; Using index
t2 range fld1 fld1 4 NULL 2 Using where; Using index
select fld1 from t2 where fld1=250501 or fld1=250502 or fld1 >= 250505 and fld1 <= 250601 or fld1 between 250501 and 250502;
fld1
250501
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@@ -1380,7 +1380,7 @@ fld1
250601
explain select fld1 from t2 where fld1=250501 or fld1=250502 or fld1 >= 250505 and fld1 <= 250601 or fld1 between 250501 and 250502;
table type possible_keys key key_len ref rows Extra
t2 range fld1 fld1 4 NULL 4 where used; Using index
t2 range fld1 fld1 4 NULL 4 Using where; Using index
select fld1,fld3 from t2 where companynr = 37 and fld3 like 'f%';
fld1 fld3
218401 faithful
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@@ -1807,8 +1807,8 @@ select distinct fld3 from t2,t3 where t2.companynr = 34 and t2.fld1=t3.t2nr orde
fld3
explain select t3.t2nr,fld3 from t2,t3 where t2.companynr = 34 and t2.fld1=t3.t2nr order by t3.t2nr,fld3;
table type possible_keys key key_len ref rows Extra
t2 ALL fld1 NULL NULL NULL 1199 where used; Using temporary; Using filesort
t3 eq_ref PRIMARY PRIMARY 4 t2.fld1 1 where used; Using index
t2 ALL fld1 NULL NULL NULL 1199 Using where; Using temporary; Using filesort
t3 eq_ref PRIMARY PRIMARY 4 t2.fld1 1 Using where; Using index
explain select * from t3 as t1,t3 where t1.period=t3.period order by t3.period;
table type possible_keys key key_len ref rows Extra
t1 ALL period NULL NULL NULL 41810 Using temporary; Using filesort
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@@ -2575,11 +2575,11 @@ companynr companyname
explain select t2.companynr,companyname from t2 left join t4 using (companynr) where t4.companynr is null;
table type possible_keys key key_len ref rows Extra
t2 ALL NULL NULL NULL NULL 1199
t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 where used; Not exists
t4 eq_ref PRIMARY PRIMARY 1 test.t2.companynr 1 Using where; Not exists
explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr is null;
table type possible_keys key key_len ref rows Extra
t4 ALL NULL NULL NULL NULL 12
t2 ALL NULL NULL NULL NULL 1199 where used; Not exists
t2 ALL NULL NULL NULL NULL 1199 Using where; Not exists
select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
companynr companynr
37 36
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@@ -2587,7 +2587,7 @@ companynr companynr
explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
table type possible_keys key key_len ref rows Extra
t2 ALL NULL NULL NULL NULL 1199 Using temporary
t4 index NULL PRIMARY 1 NULL 12 where used; Using index
t4 index NULL PRIMARY 1 NULL 12 Using where; Using index
select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008;