erd.sketch

ERD diagram from PostgreSQL SQL

You do not pick the dialect from a list — it shows in the script itself. Here is what the editor finds in a typical PostgreSQL schema.

The inputschema.sql
CREATE TABLE users (
    id BIGSERIAL PRIMARY KEY,
    email       VARCHAR(255) NOT NULL UNIQUE,
    full_name   VARCHAR(120),
    is_active   BOOLEAN NOT NULL,
    created_at  TIMESTAMPTZ NOT NULL
);

CREATE TABLE orders (
    id BIGSERIAL PRIMARY KEY,
    user_id     BIGINT NOT NULL REFERENCES users(id),
    total       NUMERIC(12,2) NOT NULL,
    note        TEXT,
    placed_at   TIMESTAMPTZ NOT NULL
);
Detected as
PostgreSQL
Told apart by
SERIAL · TIMESTAMPTZ · BOOLEAN

Parsed: 2 tables, 1 relation

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The script stays in the browser: both parsing and generation run on your machine, nothing goes to a server.

Types of this dialect the editor knows

INTEGERBIGINTSMALLINTSERIALBIGSERIALNUMERIC(12,2)REALDOUBLE PRECISIONBOOLEANTEXTVARCHAR(255)CHAR(2)DATETIMETIMESTAMPTIMESTAMPTZUUIDJSONBJSONBYTEAINET