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I've really been enjoying using sqlmodel for my projects that need a database. One thing that I definitely lacked on for too long was indexing my database. I hit a point with one database where it was taking 7s for pretty simple paginated queries to return 10 records.
For every field that you will be querying on, you can create an index, by
setting it equal to Field(index=True)
class Hero(SQLModel, table=True): id: int | None = Field(default=None, primary_key=True) name: str = Field(index=True) secret_name: str age: int | None = Field(default=None, index=True)
example courtesy of the docs
Note
primary keys are indexed by default.
The docs cover this pretty well, and in quite depth - Optimizing Queries