alt Hacker NewsI think you’re responding to the general idea of a relational database, not Postgres, and definitely not what’s in the article (DR;CA).
Postgres has built in data types and functions that allows it to work with unstructured json documents, like you would use in MongoDB.
Replies
sgarland • yesterday at 10:52 PM
"Work with" != "work well." GIN indices aren't the same as B+tree, and even then, you'll have to decide / know about jsonb_path_ops vs. the default operator class. Or you just accept sub-optimal performance, I suppose.
The lack of a rigid schema makes it super fun as well. Does this attribute exist in this row? Who knows! Maybe there's a long-forgotten version lurking, waiting to be retrieved, that will utterly bork the calling app.
That feature is definitely part of why it's still so relevant. The hstore approach wasn't nearly enough when it was all PG offered.