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Re: Best way to store and retrieve photo from PostGreSQL

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Store the pictures in the filesystem and only the path, description and
other metadata in the database. My suggestion ;-)


Andreas
Don't do that - the filesystems are not transactional (at least not the usual ones), so you'll lose the ability to use transactions. Imagine what happens when you do an unlink() and then the transaction fails for some reason - there's no way to 'rollback' the filesystem operation. I've seen this solution (storing images in filesystem) mostly in MySQL applications, but that's because of (a) lack of transactions in MySQL and (b) somehow sub-optimal handling of binary data as MySQL loads all the data even if it's not needed (this was true for MySQL 3.23 - I'm not sure about the current releases).

Anyway, I do recommend storing images in the database, using a 'bytea' column for the binary data (and load them only if reallly needed, using proper projection). You can do some benchmarks, but I've never head performance problems with it on PostgreSQL and the ability to use transactions was invaluable (it saved us hundreds of hours when the machine went down for some reason).

Tomas


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