![]() Whereas Table, Sequence, we need to quote the individual elements so "schema" has always been separate at that level. The string "x.y.z" sent to ForeignKey is only used internally to locate another Table/Column within the MetaData. The column it references, that belongs to a table which may have a schema, but ForeignKey doesn't need the separate schema information because it ultimately is pointing to an actual Column object on another Table, which also has "schema" taken care of. I added for this idea.īasically from the ForeignKey perspective it's an element of a Table, and the directives to generate a foreign key constraint don't include the schema where the constraint itself lives that's part of its parent Table and is already handled. ![]() Maybe having "schema" as an option and just having two ways to do it.arg. INSERT logic to deduplicate rows before passing them to PostgreSQL. Maybe ForeignKey and ForeignKe圜onstraint should accept a "schema" argument instead, though if that were the case I'd deprecate the other method since we try not to have multiple ways to do something.but that would be hard at this point since there's thousands of apps that do it the current way. The ON CONFLICT statement inserts the same row twice, as identified by the values in. This is a case where looking at it from my perspective, I'd never see it that way, but from someone coming into it from the API usage side, yeah that seems pretty obvious. 15:38:52 ESTLOG: unexpected EOF on client connection Name) VALUES (nextval('"test.customer_custid_seq"'), E'Test') 15:38:52 ESTSTATEMENT: INSERT INTO test.customer (custid, (nextval(\'"test.customer_custid_seq"\'), %(name)s) RETURNING 'INSERT INTO test.customer (custid, name) VALUES "test.customer_custid_seq" does not exist Return getattr(self.registry(), name)(*args, **kwargs)įile "/usr/local/lib64/python2.7/site-packages/sqlalchemy/engine/īase.py", line 1532, in _execute_clauseelement Implicit index "customer_pkey" for table "customer"įile "/usr/local/lib64/python2.7/site-packages/sqlalchemy/orm/ Psql:test.sql:7: NOTICE: CREATE TABLE / PRIMARY KEY will create "customer_custid_seq" for serial column "customer.custid" Psql:test.sql:7: NOTICE: CREATE TABLE will create implicit sequence The output from running that all that looks like createdb psql -f test.sql test ![]() Session = scoped_session(sessionmaker(bind=engine)) Mapper(Customer, customer_table, properties=)Įngine = create_engine('postgresql psycopg2://', connect_args = MetaData, ForeignKey, BigInteger, CHAR, Date, Integer, NUMERIC,įrom sqlalchemy.orm import mapper, relationship, backref,Ĭustomer_table = Table('customer', metadata,Ĭolumn('custid', Integer, Sequence('test.customer_custid_seq'), The test database I'm running this against looks like this:įrom sqlalchemy import create_engine, Table, Column, Sequence, Reason is adding the "" which PostgreSQL doesn't like.Ĭould somebody help me work out why SQLAlchemy is adding in the extra Single quotes that are around the sequence name in the query (ie.Ĭhange the custid to be nextval('test.customer_custid_seq')) in theĬommand line psql the INSERT works fine. But if I remove the double quotes that are inside the Running this query in psql from the command line reproduces the errorĪccurately. 15:38:52 ESTERROR: relation "test.customer_custid_seq" (custid, name) VALUES (nextval('"test.customer_custid_seq"'), E'Test') 15:38:52 ESTLOG: statement: INSERT INTO test.customer Postgres Plus 8.4 on openSUSE 11.4 圆4, with Python 2.7, SQLAlchemyĠ.7.2 and psycopg2 2.4.2. SQLAlchemy will generate an INSERT statement for a table with a SERIAL QVals = ', '.I've come across a bug (hopefully in my configuration) where %s : %s : %s' % (cust_name, cust_id, report_date)Īnd here’s how a dynamic query can be built to minimize the lines of saveNew(cls, dict_params): Print 'Exception occurred while saving cust_data. Param31, param32, param33, param34, param35, param36, param37, param38, param39, param40)Ĭur.execute(qInsert, (cust_name, cust_id, report_date, Param1, param2, param3, param4, param5, param6, param7, param8, param9, param10, QInsert = """INSERT INTO cust_data(cust_name, cust_id, report_date, Here’s what the previous method looks like for the INSERT with all the columns specified save(cls, dict_params):Ĭur = dbConn.cursor(cursor_factory = ) But over time, the columns of the table have been increasing, as we started to get more analytics back. I have a script that inserts thousands of rows into a database daily. ![]()
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