3 ms·

What's in them?

• jayanmn 8mo ago
  Property1 to 20 or more is an example. There are better ways to do it but I have seen columns for storing ‘anything’
  • Spivak 8mo ago
    Sounds like a generic form of single table inheritance. I don't honestly see any other way to do it (punting to a JSON field is effectively the same thing) when you have potentially thousands of parts all with their own super specific relevant attributes. I've worked on multiple products that have had a concept of "custom fields" who did it this way too.
• unclad5968 8mo ago
  Data from measurement tools. Everything about the tool configuration, time of measurement, operator ID, usually a bunch of electrical data (we make laser diodes) like current, potential, power, and a bunch of emission related data.
  • arethuza 8mo ago
    I think I'd rather work with very wide tables than the entity-attribute-value approach - which seems like a good idea but rapidly becomes a mess...