fn_registry/functions/infra/clickhouse_open.md

name, kind, lang, domain, version, purity, signature, description, tags, uses_functions, uses_types, returns, returns_optional, error_type, imports, params, output, tested, tests, test_file_path, file_path

name	kind	lang	domain	version	purity	signature	description	tags	uses_functions	uses_types	returns	returns_optional	error_type	imports	params	output	tested	tests	test_file_path	file_path
clickhouse_open	function	go	infra	1.0.0	impure	func ClickHouseOpen(host string, port int, user, password, database string) (*sql.DB, error)	Conecta a ClickHouse construyendo DSN clickhouse://user:pass@host:port/database.	database clickhouse connection sql olap pendiente-usar		db_config_go_infra		false	error_go_core	database/sql github.com/ClickHouse/clickhouse-go/v2	name desc host hostname del servidor ClickHouse name desc port puerto de ClickHouse (9000 para protocolo nativo, 8123 para HTTP) name desc user nombre de usuario para autenticacion name desc password contraseña para autenticacion name desc database nombre de la base de datos a conectar	conexion sql.DB abierta a ClickHouse con ping verificado	false			functions/infra/clickhouse_open.go

Ejemplo

db, err := ClickHouseOpen("localhost", 9000, "default", "", "analytics")
if err != nil {
    log.Fatal(err)
}
defer DBClose(db)

rows, err := DBQuery(db, "SELECT event, count() FROM events GROUP BY event")

Notas

Usa el driver github.com/ClickHouse/clickhouse-go/v2 registrado como "clickhouse". Puerto por defecto de ClickHouse es 9000 (nativo) o 8123 (HTTP). Hace ping al abrir para verificar conectividad.