As I transition to postgres from mongodb due to the recent announcement, I've noticed that the IDs are simply numerical and auto-incremented. I've attempted a few solutions:
Does anyone have any guidance on how to achieve this? I really do not want the post ID to be an automatically incremented number.
When it comes to auto-incremented ids and uuids, they represent different concepts. Using uuids as primary keys often involves using random values, making duplicates highly unlikely due to the vast range of possible values.
To create an auto-generated uuid primary key, you can use the following SQL statement:
CREATE TABLE my_table (
id UUID DEFAULT MD5(RANDOM()::TEXT || CLOCK_TIMESTAMP()::TEXT)::UUID PRIMARY KEY,
… other column definitions …
);
The pgcrypto extension offers a function for generating random uuids as well:
CREATE EXTENSION IF NOT EXISTS pgcrypto;
CREATE TABLE my_table (
id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
… other column definitions …
);
It's worth noting that starting from Postgres 13, installing the pgcrypto extension for gen_random_uuid() is no longer required.
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