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Fixed a bug in key optimizing handling where the expression

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WHERE column_name = key_column_name was calculated as true
for NULL values.
This commit is contained in:
monty@hundin.mysql.fi
2002-10-14 17:04:12 +03:00
parent 00e86fb5cc
commit 68963e91b2
6 changed files with 79 additions and 5 deletions
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6
mysql-test/r/null_key.result
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@@ -120,3 +120,9 @@ id uniq_id
4 2
7 3
8 4
order_id product_id product_type
order_id product_id product_type
3d7ce39b5d4b3e3d22aaafe9b633de51 1206029 3
3d7ce39b5d4b3e3d22aaafe9b633de51 5880836 3
id id
id id