Does, updating catalog table on postgres11 is good idea as it runs quicker? and I noticed this catelog update valid for future data only not existing ,is this true in all cases? UPDATE pg_catalog.pg_attribute SET attnotnull = TRUE WHERE attrelid…
I am using sqlalchemy with postgresql, Tables Shape[id, name, timestamp, user_id]#user_id referring id column in user table User[id, name] this query - query1 = self.session.query(Shape.timestamp, Shape.name, User.id, extract('day', Shape.timestamp).label('day'), extract('hour', Shape.timestamp).label('hour'), func.count(Shape.id).label("total"), ) .join(User, User.id==Shape.user_id) .filter(Shape.timestamp.between(from_datetime, to_datetime)) .group_by(Shape.user_id) .group_by('hour') .all()…
I can't make a request. I have 3 tables. I would like to have the following result: services id name 1 service1 2 service2 settings id name default_value 1 setting1 10 2 setting2 false services_settings id service_id setting_id value 1…
I'm trying to figure out why the outer query returns nothing if the second sub query has no return value even if the first does? SELECT * FROM ( SELECT category_id FROM story_category WHERE story_category.story_id = 9998 ) AS c,…
I have two tables: A and B A provider_id date 111 date 222 date 333 date B provider_id status date 111 initialized date 111 released date 222 failed date The result I want provider_id status date 111 released A date…
I have a table containing two columns : Fruits & Color Fruits Color Apple Red Orange Orange grape NULL On the other hand, i have another table, with only fruits, and an empty Color column. Fruits Color banana NULL Orange…
I am trying to get the sum of multiple values of a column in a single row with LEFT JOIN. Here are the tables CREATE TABLE stocks ( id text NOT NULL, quantity bigint NOT NULL DEFAULT 1 ); CREATE…
I've got the following tables: person (id), person_agency (person_id, agency_id) and agency(id, type) this is my query: select p.id, a.id from person p left join person_agency pa on p.id = pa.person_id left join agency a on pa.agency_id = a.id where…
I want to create an enum column in a Supabase table. Supabase uses Postgres under the hood, so I understand that technically it is possible if I do it manually using SQL. But is there any way I can do…
I am confused to understand the difference between Linq's Count() for IQueryable and Linq's Count() for IEnumerable. I have the following method which has to return the same result of the counts, but enumerableCount equals 2 while queryableCount is 0:…