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Fixed optimizer bug in ORDER BY where some ORDER BY parts where ignored.

Extended default arguments to be up to 4095 characters
This commit is contained in:
monty@tik.mysql.fi
2001-07-30 22:49:39 +03:00
parent 1ebd29ac6e
commit 1731161ff4
5 changed files with 136 additions and 1042 deletions

View File

@@ -111,3 +111,34 @@ DateOfAction TransactionID
member_id nickname voornaam
1
2
gid sid uid
104620 5 15
103867 5 27
103962 5 27
104619 5 75
104505 5 117
103853 5 250
gid sid uid
104620 5 15
103867 5 27
103962 5 27
104619 5 75
104505 5 117
103853 5 250
table type possible_keys key key_len ref rows Extra
t1 index PRIMARY PRIMARY 4 NULL 6 Using index
t2 eq_ref PRIMARY,uid PRIMARY 4 t1.gid 1
t3 eq_ref PRIMARY PRIMARY 2 t2.uid 1 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 index PRIMARY PRIMARY 4 NULL 6 Using index
t3 eq_ref PRIMARY PRIMARY 2 t1.gid 1 where used
table type possible_keys key key_len ref rows Extra
t1 index PRIMARY PRIMARY 4 NULL 6 Using index; Using temporary; Using filesort
t2 eq_ref PRIMARY,uid PRIMARY 4 t1.gid 1
t3 eq_ref PRIMARY PRIMARY 2 t2.uid 1 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 index PRIMARY PRIMARY 4 NULL 6 Using index; Using temporary; Using filesort
t3 eq_ref PRIMARY PRIMARY 2 t1.gid 1 where used
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort
t3 eq_ref PRIMARY PRIMARY 2 t1.skr 1 where used