postgresql/no-natural-join

Why this matters

Join columns are implicit. Add a column with a matching name to either side later and the join silently changes shape. Use `JOIN ... USING (...)` or `JOIN ... ON ...`.

Examples

SELECT * FROM a NATURAL JOIN b;

SELECT * FROM a JOIN b USING (id);

SELECT * FROM a JOIN b ON a.id = b.id;

Configure it

// eslint.config.js
import postgresql from "eslint-plugin-postgresql";

export default [
  {
    files: ["**/*.sql"],
    languageOptions: {
      parser: postgresql.configs.recommended.languageOptions.parser,
    },
    plugins: { postgresql },
    rules: {
      "postgresql/no-natural-join": "error",
    },
  },
];

Options

This rule has no options.