I like to store my current data along with historic data. I did the following: CREATE TABLE version ( sn serial PRIMARY KEY, id int NOT NULL, del timestamp, name text, UNIQUE NULLS NOT DISTINCT (id, del) ); sn is…
How do I get the rows for each year by scenario that are associated to the latest scenario for each year while being at-most prior month (future budgets & forecast scenarios exist as well) Fields: scenario (VARCHAR) Distinguishes between budget…
I have set up three containers that are networked because I would like to use Hadoop and Hive with PostgreSQL. You can access Docker set up via https://github.com/jcool12/hadoop-docker/tree/main/hivepost so you can download the folders/ files to run it. The Hadoop…
When i run the script this error is raised. But, the files are in this directory, i tried multiple ways to find these files. I tried the os.path.join("mydir", "myfile") method. But the file was not found. So i searched a…
I have a stored procedure which attempts to write to two tables, related via a foreign key constraint. Slightly simplified table definitions: CREATE TABLE station_event ( station_code VARCHAR(3) NOT NULL, user_id INTEGER NOT NULL, event_dtm TIMESTAMPTZ NOT NULL DEFAULT now(),…
there's an aspect of Postgres memory allocation about large data object I don't understand. In more details, statistics about memory allocation don't match with allocation calculated considering involved tables PostgreSQL version: 12 I have 5 tables using lob fields in…
In Postgres, does the EXISTS operator have the highest precedence of all? For example: SELECT 1 + EXISTS (SELECT 1)::int; It seems to be missing from the manual page. Though the highest one is ::, meaning EXISTS would be higher?…
I'm not a frequent SQL user, but lately it has become something that I've been using regularly and starting to enjoy it! Currently, I am using a postres database with my data. Long story short, I am looking for my…
I have a model Item with the corresponding database table items where is currently about 240,000 records. I need to generate statistics from the data in the items table on my dashboard. Currently, I am trying to do it this…
I need to get list of transactions with list of logs and tags inside each transaction and the most important make search by field in logs and tags and unite it all. Example below is search by field1 and tag1.…