Why do you want to use this, out of sql standard, statement in the first place
According to the documentation the operation performed when there is a match id/index is DELETE then INSERT and not UPDATE.
If you have on delete FK constraint or any auto increment columns you are going to face some issues.
I advice you not to use it at all.
Use a stored procedure instead then you can bypass the REPLACE limitation of having a PK or unique index.
This way you also use one transaction to the database.
Check out the new CakePHP Questions site http://cakeqs.org and help others with their CakePHP related questions.According to the documentation the operation performed when there is a match id/index is DELETE then INSERT and not UPDATE.
If you have on delete FK constraint or any auto increment columns you are going to face some issues.
I advice you not to use it at all.
Use a stored procedure instead then you can bypass the REPLACE limitation of having a PK or unique index.
This way you also use one transaction to the database.
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