SEDE

SEDE (Stack Exchange Data Explorer) is new dataset for Text-to-SQL tasks with more than 12,000 SQL queries and their natural language description. It's based on a real usage of users from the Stack Exchange Data Explorer platform, which brings complexities and challenges never seen before in any other semantic parsing dataset like including complex nesting, dates manipulation, numeric and text manipulation, parameters, and most importantly: under-specification and hidden-assumptions.

Paper (NLP4Prog workshop at ACL2021): Text-to-SQL in the Wild: A Naturally-Occurring Dataset Based on Stack Exchange Data.

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Setup Instructions

Create a new Python 3.7 virtual environment:

python3.7 -m venv .venv

Activate the virtual environment:

source .venv/bin/activate

Install dependencies:

pip install -r requirements.txt

Add the project directory to python PATH:

export PYTHONPATH=/your/projects-directories/sede:$PYTHONPATH

One can run all commands by just running make command, or running them step by step by the following commands:

Run pylint:

make lint

Run black:

make black_check

Run tests (required JSQL running for this - please see "Running JSQLParser" chapter):

make unit_test

Add the virtual environment to Jupyter Notebook:

python3.7 -m ipykernel install --user --name=.venv

Now you can enter into Jupyter with the command jupyter notebook and when creating a new notebook you will need to choose the .venv environment.

Folders Navigation

• src - source code
• configs - contains configuration files for running experiments
• data/sede - train/val/test sets of SEDE. Note - files with the _original suffix are the ones that we kept original as coming from SEDE without our fixes. See our paper for more details.
• notebooks - some helper Jupyter notebooks.
• stackexchange_schema - holds file that respresents the SEDE schema.

Running JSQLParser

Clone JSQLParser-as-a-Service project: git clone https://github.com/hirupert/jsqlparser-as-a-service.git

Enter the folder with cd jsqlparser-as-a-service

Build the JSQLParser-as-a-Service image using the following command: docker build -t jsqlparser-as-a-service .

Running the image inside a docker container in port 8079: docker run -d -p 8079:8079 jsqlparser-as-a-service

Test that the docker is running by running the following command:

curl --location --request POST 'http://localhost:8079/sqltojson' \
--header 'Content-Type: application/json' \
--data-raw '{
    "sql":"select salary from employees where salary < (select max(salary) from employees)"
}'

Training T5 model

Training SEDE:

python main_allennlp.py train configs/t5_text2sql_sede.jsonnet -s experiments/name_of_experiment --include-package src

Training Spider:

In order to run our model + Partial Components Match F1 metric on Spider dataset, one must download Spider dataset from here: https://yale-lily.github.io/spider and save it under data/spider folder inside the root project directory. After that, one can run the following command in order to train our model on Spider dataset:

python main_allennlp.py train configs/t5_text2sql_spider.jsonnet -s experiments/name_of_experiment --include-package src

Evaluation (SEDE)

Run evaluation on SEDE validation set with:

python main_allennlp.py evaluate experiments/name_of_experiment data/sede/val.jsonl --output-file experiments/name_of_experiment/val_predictions.sql --cuda-device 0 --batch-size 10 --include-package src

Run evaluation on SEDE test set with:

python main_allennlp.py evaluate experiments/name_of_experiment data/sede/test.jsonl --output-file experiments/name_of_experiment/test_predictions.sql --cuda-device 0 --batch-size 10 --include-package src

Note - In order to evaluate a trained model on Spider, one needs to replace the experiment name and the data path to: data/spider/dev.json.

Inference (SEDE)

Predict SQL queries on SEDE validation set with:

python main_allennlp.py predict experiments/name_of_experiment data/sede/val.jsonl --output-file experiments/name_of_experiment/val_predictions.sql --use-dataset-reader --predictor seq2seq2 --cuda-device 0 --batch-size 10 --include-package src

Predict SQL queries on SEDE test set with:

python main_allennlp.py predict experiments/name_of_experiment data/sede/test.jsonl --output-file experiments/name_of_experiment/val_predictions.sql --use-dataset-reader --predictor seq2seq2 --cuda-device 0 --batch-size 10 --include-package src

Note - In order to run inference with a trained model on Spider (validation set), one needs to replace the experiment name and the data path to: data/spider/dev.json.

Acknowledgements

We thank Kevin Montrose and the rest of the Stack Exchange team for providing the raw query log.