Update sql_implementation.py to include sqlachemy output in debug log…

…ging. (#782)

* Update sql_implementation.py to include sqlachemy output in debug logging.

The current logging scheme directly prints the query as rendered by str(q); the following is the output from logging.info(f"ECA query: {q}") in function _equivalent_class_relationships.

INFO:root:ECA query: SELECT statements.subject AS statements_subject, statements.predicate AS statements_predicate, statements.object AS statements_object
FROM statements
WHERE statements.predicate = ? AND statements.object IN (__[POSTCOMPILE_object_1]) AND statements.object IN (SELECT class_node.id
FROM class_node)

With this change, when running at logging level DEBUG, anytime a query is executed sqlachemy will also writes it's logging output, which is the following:
INFO:sqlalchemy.engine.Engine:SELECT statements.subject AS statements_subject, statements.predicate AS statements_predicate, statements.object AS statements_object
FROM statements
WHERE statements.predicate = ? AND statements.object IN (?) AND statements.object IN (SELECT class_node.id
FROM class_node)
INFO:sqlalchemy.engine.Engine:[generated in 0.00023s] ('owl:equivalentClass', 'MONDO:0000550')

In the Sqlalchemy logging, the ambiguous term "(__[POSTCOMPILE_object_1])" isn't stated and instead replaced with a query parameter, and the query parameters are outputted on a second line.

* Update sql_implementation.py

Corrected lint errors

src/oaklib/implementations/sqldb/sql_implementation.py

@@ -365,6 +365,11 @@ def __post_init__(self):
             logging.info(f"Locator, post-processed: {locator}")
             self.engine = create_engine(locator)
 
+            if(logging.root.level <= logging.DEBUG):
+                #If oaklib is running at DEBUG level logging; record all queries from sqlachemy on execution.
+                #This line is equivalent to create_engine(locator,echo=True)
+                logging.getLogger('sqlalchemy.engine.Engine').setLevel(logging.INFO)
+
     @property
     def session(self):
         if self._session is None: