lekovr / d2-erd-from-postgres

Create a D2 ERD Diagram from your existing postgres schema (golang port)

Hi there 👋

I write software and share it worldwide here.

Some of my projects are grouped in the following organizations:

• dopos - Docker powered servers
• pgmig - Postgresql migrations
• apisite - Access to SQL API from templates and external clients

d2-erd-from-postgres's Issues

Place primary key info as "is_pk" flag in column attributes

In current version

1. SQL returns a column "primary_key" which holds one column name
2. If primary key contains 2 or more columns, there will be 2 or more rows for table, each for appropriate column, and 2 or more d2 table definition

What would be better

• Place primary key info as "is_pk" flag in column attributes

Decode column types 'USER-DEFINED' and 'ARRAY'

Use more informative data instead

Use real column order

Show tables columns accordingly its order in database

Port to Go

Future improvements would be convenient to see (and make) on golang

Avoid multiple constraints

In d2 v0.3.0 there are some open issues:

• [FR] sql_table: Support PK and FK composed by 2+ attributes
• [FR] sql_table: support multiple constraints on columns

So, if column has both PK and FK flags there is no correct presentation format.

It would be nice to have the following temporary solution:

• If column has both PK and FK flags, set PK constraint only (FK will be shown as arrow to linked table in this case)

Move schema name (public) into variable

So it might be changed by flag in future