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Ongoing observations by End Point people

Authorize.Net Transaction IDs to increase in size

A sign of their success, is going to break through Transaction ID numbers greater than 2,147,483,647 (or 2^31), which happens to exceed the maximum size of a signed MySQL int() column and the default Postgres "integer".

It probably makes sense to ensure that your transaction ID columns are large enough proactively - this would not be a fun bug to run into ex-post-facto.

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