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Fixed bug with UPDATE/DELETE on UNIQUE key which could be NULL

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monty@donna.mysql.fi
2001-04-10 11:32:28 +03:00
parent 7f21a7a6da
commit 3c82d4a2e1
7 changed files with 135 additions and 15 deletions
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28
mysql-test/r/null_key.result
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@@ -92,3 +92,31 @@ NULL 9 0
NULL 9 0
a b c
6 6 0
table type possible_keys key key_len ref rows Extra
t1 ref idx1 idx1 5 const 1 where used
table type possible_keys key key_len ref rows Extra
t1 const idx1 idx1 5 const 1
id
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id
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id uniq_id
3 1
4 2
7 3
8 4
id uniq_id
3 1
4 2
7 3
8 4