giacomomasseron: “As I supposed ... but this is not an entity-relationship dia…”

Son Tran @tbsonOct 2260c3d91

I added one column to a customers table while testing a modular monolith schema, and two modules quietly started depending on each other. The column was last_order_id, pointing at the ordering module's orders. Orders already pointed at customers. My pg_constraint query, the one…

giacomomasseron @giacomomasseronOct 22a156b02

What ERD stands for?

ADAMAS @dev-adamasOct 221adf4ee

entity-relationship diagram, a visual blueprint that maps out how data is structured and connected inside a database

giacomomasseron @giacomomasseronOct 22

As I supposed ... but this is not an entity-relationship diagram. I do not know why on the web there is this misconception of this diagram.

14:05 · Oct 22, 2026commit cdb08c8

ADAMAS @dev-adamasOct 22

Lol! 😂 l think it's only slightly different, it's just a basic demo l suppose

Son Tran @tbson6d

This one called Context Map. Suppose your ERD have so many entities that organized in several groups (I called it context view). This is the relationship between context views. We can see dependencies between them based their foreign key (and virtual relationship if needed).

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