prettier-plugin-sql

An opinionated sql formatter plugin for Prettier

Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing, taking various rules into account.

This plugin adds support for a lot of sql files through sql-formatter or node-sql-parser.

Notice

This plugin is still under development, its printer just wraps sql-formatter or node-sql-parser's default printer. Of course it should just work, but may not match prettier's format sometimes.

Requirements

prettier-plugin-sql is an evergreen module. 🌲 This module requires an LTS Node version (v12.0.0+).

Install

Using npm:

# npm
npm i -D prettier prettier-plugin-sql

# yarn
yarn add -D prettier prettier-plugin-sql

Usage

Once installed, Prettier plugins must be added to .prettierrc:

{
  "plugins": ["prettier-plugin-sql"]
}

Then:

# npx
npx prettier --write db.sql

# yarn
yarn prettier --write db.sql

SQL-in-JS with prettier-plugin-embed

Format SQL-in-JS tagged template literals by installing prettier-plugin-embed and configuring as follows:

prettier.config.mjs

/** @type {import('prettier').Config} */
const prettierConfig = {
  plugins: ['prettier-plugin-embed', 'prettier-plugin-sql'],
}

/** @type {import('prettier-plugin-embed').PrettierPluginEmbedOptions} */
const prettierPluginEmbedConfig = {
  embeddedSqlIdentifiers: ['sql'],
}

/** @type {import('prettier-plugin-sql').SqlBaseOptions} */
const prettierPluginSqlConfig = {
  language: 'postgresql',
  keywordCase: 'upper',
}

const config = {
  ...prettierConfig,
  ...prettierPluginEmbedConfig,
  ...prettierPluginSqlConfig,
}

export default config

Before formatting:

const animals = await sql`
  sELect  first_name,    species froM
   animals
         WhERE
 id = ${id}
`

After formatting:

const animals = await sql`
  SELECT
    first_name,
    species
  FROM
    animals
  WHERE
    id = ${id}
`

Parser Options

interface SqlOptions {
  formatter: 'sql-formatter' | 'node-sql-parser' // default `sql-formatter`

  // sql-formatter
  language:
    | 'sql'
    | 'bigquery'
    | 'db2'
    | 'db2i' // (experimental)
    | 'hive'
    | 'mariadb'
    | 'mysql'
    | 'n1ql'
    | 'postgresql'
    | 'plsql'
    | 'redshift'
    | 'singlestoredb'
    | 'snowflake'
    | 'spark'
    | 'sqlite'
    | 'transactsql'
    | 'tsql'
    | 'trino'
  // default `sql`
  dialect: string // `JSOX` **stringified**, please refer https://github.com/sql-formatter-org/sql-formatter/blob/master/docs/dialect.md for more details
  keywordCase: 'preserve' | 'upper' | 'lower' // default `preserve`
  dataTypeCase: 'preserve' | 'upper' | 'lower' // default `preserve`
  functionCase: 'preserve' | 'upper' | 'lower' // default `preserve`
  identifierCase: 'preserve' | 'upper' | 'lower' // default `preserve`, experimental
  indentStyle: 'standard' | 'tabularLeft' | 'tabularRight' // default `standard`
  logicalOperatorNewline: 'before' | 'after' // default `before`
  expressionWidth: number // default `50`
  linesBetweenQueries: number // default `1`
  denseOperators: boolean // default `false`
  newlineBeforeSemicolon: boolean // default `false`
  params: string // `JSOX` **stringified**, please refer https://github.com/sql-formatter-org/sql-formatter/blob/master/docs/params.md for more details
  paramTypes: string // `JSOX` **stringified**, please refer https://github.com/sql-formatter-org/sql-formatter/blob/master/docs/paramTypes.md for more details

  // node-sql-parser
  type: 'table' | 'column' // default `table`
  database:
    | 'bigquery'
    | 'db2'
    | 'hive'
    | 'mariadb'
    | 'mysql'
    | 'postgresql'
    | 'transactsql'
    | 'flinksql'
    | 'snowflake' // (alpha)
  // default `mysql`
}

More details on sql-formatter and node-sql-parser.

Sponsors

1stG	RxTS	UnTS

Backers

1stG	RxTS	UnTS

Changelog

Detailed changes for each release are documented in CHANGELOG.md.

License

MIT © [e-mail]