Richard Ollier wrote:
Hello,
For a project I have a table containing products and flags.
The columns of this table are of 2 kinds :
- Not null data (id, column1, column2)
- Flags (100 different flags set to 1 or 0)
Over the time the number of flag will increase from 100 to 200 or more.
Having 200 flags as 200 fields... Writing queries on that is going to be
painful.
I would probably look at bitwise operations, although 200 bits is quite
a bit larger than a bigint. Maybe an array of ints would work...
I don't suppose you expect 2^200 different combinations, maybe some of
the flags can be grouped together?
--
Alban Hertroys
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