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Asked: 2026-05-25T23:54:09+00:00

I’m using postgresql and python and I need to store data group by week

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I’m using postgresql and python and I need to store data group by week of the year. So, there’s plenty alternatives:

  • week and year in two separated fields
  • a date pointing to the start of the week (or a random day of the week)
  • And, the one I like: an interval type.

I never use it, but reading the docs, seems to fit. But then, reading psycopg docs I found interval mapped to python timedelta object… seems weird to me, a timedelta is just a difference.

So, there are two question here, really:

  1. Can I handle this choice using psycopg2?
  2. Is the better alternative?

Thanks

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1 Answer

  1. Editorial Team

    The PostgreSQL interval type isn’t really what you’re looking for — it’s specifically intended for storing an arbitrary length of time, ranging anywhere from a microsecond to a few million years. An interval has no starting or ending point; it’s just a measure of “how long”.

    If you’re specifically after storing which week an event is associated with, you’re probably better off with either of your first two options.

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