Managing State Cost in Cairo Contracts: A Practical Guide to Minimizing Constraints
Learn how to keep Cairo contract verification cheap by aligning state updates with its memory‑model constraints.
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cairoPostgreSQL : NOT VALID constraint vs validation trigger
I have a table with a "currency" column. I'd like to prevent further insertion of certain currencies, without removing the existing ones. Initially I was thinking of a validation trigger. Then I discovered the NOT VALID option of ALTER TABLE ADD CONSTRAINT , which prevents the validation of existing data. The documentation seems to imply that the NOT VALID o
How to add foreign key in PostgreSQL
I created this first table named 'bookstore' where Primary Key is book_name: create table bookstore (book_name varchar primary key, author varchar, price decimal); I am trying to create a second table named 'name' where name is primary key. I want to make this primary key- author.name as a foreign key of bookstore.author. create table author (name varchar pr
Auto Layout Limits: Nested Min/Max Constraint Behavior
Goal To understand how Adobe XD’s Auto Layout handles min/max constraints when a nested Auto Layout frame is resized. Constraints & Uncertainty Auto Layout supports fixed, minimum, and maximum sizing for items. When a frame with its own Auto Layout is placed inside another Auto Layout, the inner frame’s constraints are not fully propagated to the outer c
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