N3 Formula <-> SQLAlchemy Store error

[tduval-unifylogic]

Greetings!

I have a need to store formulas in Conjunctive Graphs as depicted in tests here in a SQLAlchemy backed store using Postgres.

I can run the tests just fine, but when I switch over the store using the code below, I receive the error in the image below.

registerplugins()
store = plugin.get("SQLAlchemy", Store)(identifier="")
cg = ConjunctiveGraph(store=store)
cg.open(my_verified_sql_alchemy_connection_string, create=True)
testN3 = """
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix : <http://test/> .
{:a :b :c;a :foo} => {:a :d :c,?y}.
_:foo a rdfs:Class.
:a :d :c."""
cg.parse(data=testN3, format='n3')

Any help on what I might be doing wrong? I am aware that my store needs to be a 'formula aware' store. Is there something I am not setting (or setting incorrectly?)

I created a PR #93 with the fix.

[tduval-unifylogic]

Thanks for this! Any ETA on release?

[tduval-unifylogic]

works! thanks a ton!