def query(connection):
# Get the physical plan for a test query
catalog = MyriaCatalog(connection)
servers = catalog.get_num_servers()
parser = myrialparser.Parser()
processor = interpreter.StatementProcessor(catalog, True)
program = """
books = scan(Brandon:Demo:MoreBooks);
longerBooks = [from books where pages > 300 emit name];
store(longerBooks, Brandon:Demo:LongerBooks);
"""
statement_list = parser.parse(program)
processor.evaluate(statement_list)
pd = processor.get_physical_plan(target_alg=MyriaLeftDeepTreeAlgebra())
json = processor.get_json_from_physical_plan(pd)
return {'rawQuery': program,
'logicalRa': 'empty',
'fragments': json}
def setUp(self):
# SQLAlchemy
self.db = SQLCatalog(
sqlalchemy.create_engine('sqlite:///:memory:', echo=True))
self.db.add_table(self.emp_key, self.emp_schema)
self.db.add_tuples(self.emp_key, self.emp_schema, self.emp_table)
# MyriaL
self.parser = parser.Parser()
self.processor = interpreter.StatementProcessor(self.db)
from raco.myrial import interpreter as MyrialInterpreter
from raco.language import MyriaAlgebra
from raco.myrialang import compile_to_json
from raco.viz import get_dot
from raco.myrial.keywords import get_keywords
from raco import scheme
from examples import examples, demo3_examples
from pagination import Pagination
import myria
# We need a (global) lock on the Myrial parser because yacc is not Threadsafe.
# .. see uwescience/datalogcompiler#39
# .. (https://github.com/uwescience/datalogcompiler/issues/39)
myrial_parser_lock = Lock()
myrial_parser = MyrialParser.Parser()
JINJA_ENVIRONMENT = jinja2.Environment(
loader=jinja2.FileSystemLoader('templates'),
extensions=['jinja2.ext.autoescape'],
autoescape=True)
version_file_path = os.path.join(os.path.dirname(__file__), 'VERSION')
branch_file_path = os.path.join(os.path.dirname(__file__), 'BRANCH')
try:
with open(version_file_path, 'r') as version_file:
VERSION = version_file.read().strip()
except:
VERSION = "commit version file not found"
def setUp(self):
self.db = self.create_db()
self.parser = parser.Parser()
self.new_processor()
def __init__(self, catalog):
self.parser = parser.Parser()
self.processor = interpreter.StatementProcessor(catalog)