Update: I added: from psycopg2.extras import Json
And wrapped my value: a_dictionary = Json(a_dictionary) Which moved me forward to: sqlalchemy.exc.ProgrammingError: (ProgrammingError) function update_json_with_oplog_entry(json, unknown) does not exist How do I define argument types of a custom function? On Friday, August 22, 2014 11:50:01 AM UTC-4, Stefan Urbanek wrote: > > Hi, > > I have a custom PostgreSQL function that takes two JSON-type arguments: > > CREATE OR REPLACE FUNCTION "update_json"(original json, update_obj json) > > > When I try to use the function in sqlalchemy: > > a_dictionary = dict(...) > > value = sqlalchemy.sql.func.update_json(a_json_column, a_dictionary) > > table.update().values(a_json_column=value) > > > It fails with: > > sqlalchemy.exc.ProgrammingError: (ProgrammingError) can't adapt type > 'dict' > > > What am I missing? > > Thanks, > > Stefan > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
