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from typing import List
from haystack import component
import pandas as pd
pd.set_option('display.max_rows', None)
pd.set_option('display.max_columns', None)
pd.set_option('display.width', None)
pd.set_option('display.max_colwidth', None)
import sqlite3
from utils import TEMP_DIR
@component
class SQLiteQuery:
def __init__(self, sql_database: str):
self.connection = sqlite3.connect(sql_database, check_same_thread=False)
@component.output_types(results=List[str], queries=List[str])
def run(self, queries: List[str], session_hash):
print("ATTEMPTING TO RUN QUERY")
dir_path = TEMP_DIR / str(session_hash)
results = []
for query in queries:
result = pd.read_sql(query, self.connection)
result.to_csv(f'{dir_path}/query.csv', index=False)
results.append(f"{result}")
self.connection.close()
return {"results": results, "queries": queries}
def sqlite_query_func(queries: List[str], session_hash):
dir_path = TEMP_DIR / str(session_hash)
sql_query = SQLiteQuery(f'{dir_path}/data_source.db')
try:
result = sql_query.run(queries, session_hash)
if len(result["results"][0]) > 1000:
print("QUERY TOO LARGE")
return {"reply": "query result too large to be processed by llm, the query results are in our query.csv file. If you need to display the results directly, perhaps use the table_generation_func function."}
else:
return {"reply": result["results"][0]}
except Exception as e:
reply = f"""There was an error running the SQL Query = {queries}
The error is {e},
You should probably try again.
"""
return {"reply": reply}
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