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--- |
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pretty_name: SchemaPile |
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tags: |
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- SQL |
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- Schemas |
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dataset_info: |
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features: |
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- name: ID |
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dtype: string |
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- name: FILENAME |
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dtype: string |
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- name: URL |
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dtype: string |
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- name: LICENSE |
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dtype: string |
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- name: PERMISSIVE |
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dtype: bool |
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- name: TABLES |
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list: |
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- name: TABLE_NAME |
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dtype: string |
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- name: COLUMNS |
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list: |
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- name: NAME |
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dtype: string |
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- name: TYPE |
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dtype: string |
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- name: NULLABLE |
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dtype: bool |
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- name: UNIQUE |
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dtype: bool |
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- name: DEFAULT |
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dtype: string |
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- name: CHECKS |
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sequence: string |
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- name: IS_PRIMARY |
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dtype: bool |
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- name: IS_INDEX |
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dtype: bool |
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- name: VALUES |
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sequence: string |
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- name: PRIMARY_KEYS |
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sequence: string |
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- name: FOREIGN_KEYS |
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list: |
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- name: COLUMNS |
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sequence: string |
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- name: FOREIGN_TABLE |
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dtype: string |
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- name: REFERRED_COLUMNS |
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sequence: string |
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- name: ON_DELETE |
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dtype: string |
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- name: ON_UPDATE |
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dtype: string |
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- name: CHECKS |
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sequence: string |
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- name: INDEXES |
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sequence: string |
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splits: |
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- name: full |
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num_bytes: 142346554 |
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num_examples: 22989 |
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download_size: 39308883 |
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dataset_size: 142346554 |
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configs: |
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- config_name: default |
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data_files: |
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- split: full |
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path: data/full-* |
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--- |
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# SchemaPile |
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### Usage |
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```python |
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from datasets import load_dataset |
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ds = load_dataset("trl-lab/schemapile", split="full") |
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print(f"Loaded dataset with {len(ds)} records.") |
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print(ds[0]) |
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``` |
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### Description |
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SchemaPile is a collection of database schemas extracted from various sources, normalized for consistency and ease of use in machine learning workflows. Each record contains metadata (`INFO`), licensing information, permissiveness, and a list of tables with detailed column specifications. |
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### Schema |
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- **INFO:** |
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- `ID`: Unique identifier (from filename prefix) |
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- `FILENAME`: Original filename |
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- Additional metadata fields |
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- **LICENSE:** License string (if available) |
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- **PERMISSIVE:** Boolean indicating permissive license |
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- **TABLES:** List of tables, each with: |
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- `TABLE_NAME`: Name of the table |
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- `COLUMNS`: List of columns, each with: |
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- `NAME`, `TYPE`, `NULLABLE`, `UNIQUE`, `DEFAULT`, `CHECKS`, `IS_PRIMARY`, `IS_INDEX`, `VALUES` |
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- `PRIMARY_KEYS`, `FOREIGN_KEYS`, `CHECKS`, `INDEXES` |
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### Citation |
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If you use SchemaPile in your research, please cite: |
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> ```bibtex |
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> @article{dohmen2024schemapile, |
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> title={Schemapile: A large collection of relational database schemas}, |
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> author={D{"o}hmen, Till and Geacu, Radu and Hulsebos, Madelon and Schelter, Sebastian}, |
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> journal={Proceedings of the ACM on Management of Data}, |
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> volume={2}, |
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> number={3}, |
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> pages={1--25}, |
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> year={2024}, |
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> publisher={ACM New York, NY, USA} |
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> ``` |
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**[Read the paper](https://schemapile.github.io/assets/SchemaPile.pdf)** |
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### Website |
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For more information, visit the [SchemaPile website](https://schemapile.github.io/). |
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### License |
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See individual record `LICENSE` fields for details. The `PERMISSIVE` flag indicates whether the schema is under a permissive license. |
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