---
name: fetch_data_frame
kind: function
lang: go
domain: datascience
version: "1.0.0"
purity: impure
signature: "func FetchDataFrame(dsn, query string) ([]map[string]any, error)"
description: "Ejecuta una consulta SQL contra un DSN y retorna los resultados como slice de mapas columna-valor."
tags: [datascience, io, bigquery, fetch]
uses_functions: []
uses_types: []
returns: []
returns_optional: false
error_type: "error_go_core"
imports: ["fmt"]
params:
  - name: dsn
    desc: "connection string para la BD (ej: 'user:pass@tcp(host:3306)/dbname', 'bigquery://project-id')"
  - name: query
    desc: "consulta SQL a ejecutar (ej: 'SELECT * FROM users WHERE status = \"active\"')"
output: "slice de mapas columna-valor (ej: [{'id': 1, 'name': 'Alice'}, {'id': 2, 'name': 'Bob'}])"
tested: false
tests: []
test_file_path: ""
file_path: "functions/datascience/fetch_data_frame.go"
---