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Converting 32 Bit INT to 64 Bit MySQL BIGINT Integer data types

Anything I should know before simply converting all the form types?

     
6:51 am on Jul 31, 2010 (gmt 0)

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WebmasterWorld Senior Member jab_creations is a WebmasterWorld Top Contributor of All Time 10+ Year Member

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There are a few limitations that I can see hitting by using the 32 bit INT field type in MySQL including the epoch issue so my question is rather simple: should I expect any potential problems in my production environment if I just go through all my database tables and convert the types from INT to BIGINT?

- John