SQLModel creates an index for every field in SQLite

[rabinadk1]

First Check

• I added a very descriptive title to this issue.
• I used the GitHub search to find a similar issue and didn't find it.
• I searched the SQLModel documentation, with the integrated search.
• I already searched in Google "How to X in SQLModel" and didn't find any information.
• I already read and followed all the tutorial in the docs and didn't find an answer.
• I already checked if it is not related to SQLModel but to Pydantic.
• I already checked if it is not related to SQLModel but to SQLAlchemy.

Commit to Help

• I commit to help with one of those options 👆

Example Code

from typing import Optional

from sqlmodel import Field, SQLModel

# Data Models


class HeroCreate(SQLModel):
 """
 Data Model for Hero Creation
 """

 name: str
 secret_name: str
 age: Optional[int] = None


class HeroRead(HeroCreate):
 """
 Data Model for Hero Read
 """

 id: int


class HeroUpdate(SQLModel):
 """
 Data Model for Hero Update
 """

 name: Optional[str] = None
 secret_name: Optional[str] = None
 age: Optional[int] = None


# Table Models


class Hero(HeroCreate, table=True):
 """
 Table Model for Hero
 """

 id: Optional[int] = Field(default=None, primary_key=True)

Description

• Create a Hero Model
• Save it to the database using SQLModel.metadata.create_all(engine)
• The database has an index for every field.
  The default option should be no index, if not specified explicitly.

Operating System

Linux

Operating System Details

Kernel version: 5.14.14-arch1-1

SQLModel Version

0.0.4

Python Version

3.9.7

Additional Context

The output from the terminal when echo=True is shown below.

2021-11-06 15:45:40,513 INFO sqlalchemy.engine.Engine BEGIN (implicit)
2021-11-06 15:45:40,513 INFO sqlalchemy.engine.Engine PRAGMA main.table_info("user")
2021-11-06 15:45:40,513 INFO sqlalchemy.engine.Engine [raw sql] ()
2021-11-06 15:45:40,514 INFO sqlalchemy.engine.Engine PRAGMA temp.table_info("user")
2021-11-06 15:45:40,514 INFO sqlalchemy.engine.Engine [raw sql] ()
2021-11-06 15:45:40,515 INFO sqlalchemy.engine.Engine PRAGMA main.table_info("hero")
2021-11-06 15:45:40,515 INFO sqlalchemy.engine.Engine [raw sql] ()
2021-11-06 15:45:40,515 INFO sqlalchemy.engine.Engine PRAGMA temp.table_info("hero")
2021-11-06 15:45:40,515 INFO sqlalchemy.engine.Engine [raw sql] ()
2021-11-06 15:45:40,517 INFO sqlalchemy.engine.Engine 
CREATE TABLE user (
	username VARCHAR NOT NULL, 
	email VARCHAR, 
	full_name VARCHAR NOT NULL, 
	id INTEGER, 
	hashed_password VARCHAR NOT NULL, 
	PRIMARY KEY (id)
)


2021-11-06 15:45:40,517 INFO sqlalchemy.engine.Engine [no key 0.00026s] ()
2021-11-06 15:45:40,601 INFO sqlalchemy.engine.Engine CREATE INDEX ix_user_email ON user (email)
2021-11-06 15:45:40,601 INFO sqlalchemy.engine.Engine [no key 0.00030s] ()
2021-11-06 15:45:40,693 INFO sqlalchemy.engine.Engine CREATE INDEX ix_user_full_name ON user (full_name)
2021-11-06 15:45:40,693 INFO sqlalchemy.engine.Engine [no key 0.00037s] ()
2021-11-06 15:45:40,783 INFO sqlalchemy.engine.Engine CREATE INDEX ix_user_id ON user (id)
2021-11-06 15:45:40,783 INFO sqlalchemy.engine.Engine [no key 0.00049s] ()
2021-11-06 15:45:40,871 INFO sqlalchemy.engine.Engine CREATE INDEX ix_user_username ON user (username)
2021-11-06 15:45:40,872 INFO sqlalchemy.engine.Engine [no key 0.00035s] ()
2021-11-06 15:45:40,961 INFO sqlalchemy.engine.Engine CREATE INDEX ix_user_hashed_password ON user (hashed_password)
2021-11-06 15:45:40,961 INFO sqlalchemy.engine.Engine [no key 0.00029s] ()
2021-11-06 15:45:41,040 INFO sqlalchemy.engine.Engine 
CREATE TABLE hero (
	name VARCHAR NOT NULL, 
	secret_name VARCHAR NOT NULL, 
	age INTEGER, 
	id INTEGER, 
	PRIMARY KEY (id)
)


2021-11-06 15:45:41,040 INFO sqlalchemy.engine.Engine [no key 0.00029s] ()
2021-11-06 15:45:41,151 INFO sqlalchemy.engine.Engine CREATE INDEX ix_hero_secret_name ON hero (secret_name)
2021-11-06 15:45:41,151 INFO sqlalchemy.engine.Engine [no key 0.00029s] ()
2021-11-06 15:45:41,263 INFO sqlalchemy.engine.Engine CREATE INDEX ix_hero_age ON hero (age)
2021-11-06 15:45:41,263 INFO sqlalchemy.engine.Engine [no key 0.00028s] ()
2021-11-06 15:45:41,375 INFO sqlalchemy.engine.Engine CREATE INDEX ix_hero_id ON hero (id)
2021-11-06 15:45:41,375 INFO sqlalchemy.engine.Engine [no key 0.00050s] ()
2021-11-06 15:45:41,487 INFO sqlalchemy.engine.Engine CREATE INDEX ix_hero_name ON hero (name)
2021-11-06 15:45:41,487 INFO sqlalchemy.engine.Engine [no key 0.00050s] ()
2021-11-06 15:45:41,597 INFO sqlalchemy.engine.Engine COMMIT

[rabinadk1]

I think this issue is related to #11

[rabinadk1]

Resolved by #205