I have a Postgres addresses table with rows such as: id data 1 {"name": "Scott", "addresses": [{"city": "London", "street": "street 1"}, {"city": "Berlin", "street": "street 2"}]} 2 {"name": "Tiger", "addresses": [{"city": "Tokyo", "street": "street 3"}, {"city": "Zurich", "street": "street 4"}]}…
Let's say I have a bands and a genres table who are connected through a join table called j_band_genres. Combined, this is my data: ID Names Genres 1 The Beatles Pop, Rock 2 The Rolling Stones Rock 3 Boney M.…
I have a Post model: class Post(models.Model): profile = models.ForeignKey(Profile, related_name="posts", on_delete=CASCADE) project = models.ForeignKey(Project, related_name="posts", on_delete=CASCADE) title = models.CharField(verbose_name="Title", max_length=150) body = models.TextField(verbose_name="Content", max_length=1300) image_url = models.URLField(max_length=256, null=True, blank=True) liked_by = models.ManyToManyField(Profile, related_name="post_likes") date_published = models.DateTimeField(auto_now_add=True, verbose_name="Date published") date_modified…
> user = Session.query(User).filter_by(id=user_id).first() > print("Active Session", {'id': user.id, 'email': user.email} ) > Session.commit() > Session.close() > user = Session.query(User).filter_by(id=user_id).first() > print("After closing session", {'id': user.id, 'email': user.email}) i am trying to close session using python and sqlalchemy but after…
I am trying to establish a non-blocking connection to a PostgreSQL database using the libpq library in C, and I want to be able to trigger a notification or callback function once the connection is established. I know that PQconnectStart()…
I have the following table structure: create table system_log ( id bigserial primary key, details jsonb ); Data in 'details' column is json with inner json: { "prop1": "value1", "prop2": "value2", "body": "{"prop3": "value3"}" } How to select data from…
I am trying to add support for the following query for an AGE project that converts Cypher queries to SQL: MATCH p=({name: 'agens-graph'})-[{lang: 'java'}]->(m) RETURN *; This successfully converts into the following: SELECT * FROM cypher('test', $$ MATCH p=({name: 'agens-graph'})-[{lang:…
I want to create a server in pgAdmin 4 but it's not working. enter image description here should actually work like this. enter image description here I'm a Linux Ubuntu 22.04 user. I tried create a server, but it didn't…
I read the new version in django document, I am follow this post , but doesn't work: **conn = _connect(dsn, connection_factory=connection_factory, **kwasync)** django.db.utils.OperationalError: definition of service "Servers" not found here is my processing: 1.I create the file ".pg_service.conf" in %APPDATA%,…
In PostgreSQL source code and its extensions like Apache/age I find Datum data type is used everywhere. I'd like to know where it's defined and what it's used for.