well, it's just my two cents from an info I got a long time ago. I might be wrong now, so ...
best regards, Richard. On 08/27/2015 06:54 AM, Cornelius Kölbel wrote:
Hello, this is maybe more about the database design. I want to store several boolean states of an object. The object may also have more than one state and the available possible states may increase in future. So I want to avoid adding BOOL columns for every new state and I though, hey, what about bit fields - one column, that can store many boolean information/flags. I understand that MySQL provides a datatype BIT, but which may lead to problems, depending on the version and table type. What about sqlalchemy? Is there a reasonable way to use bit masks? Would you recommend anyway to avoid such a design, since it is not that what SQL originally was designed for? I also want the program to be able to run on mysql or postgres or whatever. So maybe choosing bit masks is a bad idea anyway, since it might lead to problems with different database backends? Thanks a lot for your thoughts Cornelius
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