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Safety

postgresql/require-where-in-delete

Require a WHERE clause on DELETE.

  • Type problem
  • Recommended error
  • Fixable no

Why this matters

A `DELETE` without `WHERE` empties the entire table — almost always a mistake. Use `TRUNCATE` if you actually mean to wipe the table.

Examples

Incorrect

Incorrect
DELETE FROM users;

Correct

Correct
DELETE FROM users WHERE id = 1;
Correct
DELETE FROM sessions WHERE expires_at < now();

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/require-where-in-delete": "error",
    },
  },
];

Options

This rule has no options.

Try this rule

Edit the SQL — only require-where-in-delete is enabled.

Pre-filled with the first incorrect example. Toggle off in the rule shelf to see how the diagnostic disappears.

0 errors 0 warnings parse 0ms · rules 0ms
Diagnostics

No issues found.

2 rules enabled.

Rule under test require-where-in-delete — plus no-syntax-error as a safety net.
eslint-plugin-postgresql

An ESLint plugin that lints .sql files with real PostgreSQL grammar and a curated set of best-practice rules.

© 2026 eslint-plugin-postgresql contributors Built on libpg-query · PostgreSQL 17