sql/test/dialects/join-tests.js

sql builder

'use strict';

var Harness = require('./support');
var user = Harness.defineUserTable();
var post = Harness.definePostTable();
var comment = Harness.defineCommentTable();

Harness.test({
  query: user.select(user.name, post.content).from(user.join(post).on(user.id.equals(post.userId))),
  pg: {
    text  : 'SELECT "user"."name", "post"."content" FROM "user" INNER JOIN "post" ON ("user"."id" = "post"."userId")',
    string: 'SELECT "user"."name", "post"."content" FROM "user" INNER JOIN "post" ON ("user"."id" = "post"."userId")'
  },
  sqlite: {
    text  : 'SELECT "user"."name", "post"."content" FROM "user" INNER JOIN "post" ON ("user"."id" = "post"."userId")',
    string: 'SELECT "user"."name", "post"."content" FROM "user" INNER JOIN "post" ON ("user"."id" = "post"."userId")'
  },
  mysql: {
    text  : 'SELECT `user`.`name`, `post`.`content` FROM `user` INNER JOIN `post` ON (`user`.`id` = `post`.`userId`)',
    string: 'SELECT `user`.`name`, `post`.`content` FROM `user` INNER JOIN `post` ON (`user`.`id` = `post`.`userId`)'
  },
  params: []
});

Harness.test({
  query: user.join(post).on(user.id.equals(post.userId)),
  pg: {
    text  : '"user" INNER JOIN "post" ON ("user"."id" = "post"."userId")',
    string: '"user" INNER JOIN "post" ON ("user"."id" = "post"."userId")'
  },
  sqlite: {
    text  : '"user" INNER JOIN "post" ON ("user"."id" = "post"."userId")',
    string: '"user" INNER JOIN "post" ON ("user"."id" = "post"."userId")'
  },
  mysql: {
    text  : '`user` INNER JOIN `post` ON (`user`.`id` = `post`.`userId`)',
    string: '`user` INNER JOIN `post` ON (`user`.`id` = `post`.`userId`)'
  },
  params: []
});

Harness.test({
  query: user
    .select(user.name, post.content, comment.text)
    .from(
    user
    .join(post).on(user.id.equals(post.userId))
    .join(comment).on(post.id.equals(comment.postId))),
  pg: {
    text  : 'SELECT "user"."name", "post"."content", "comment"."text" FROM "user" INNER JOIN "post" ON ("user"."id" = "post"."userId") INNER JOIN "comment" ON ("post"."id" = "comment"."postId")',
    string: 'SELECT "user"."name", "post"."content", "comment"."text" FROM "user" INNER JOIN "post" ON ("user"."id" = "post"."userId") INNER JOIN "comment" ON ("post"."id" = "comment"."postId")'
  },
  sqlite: {
    text  : 'SELECT "user"."name", "post"."content", "comment"."text" FROM "user" INNER JOIN "post" ON ("user"."id" = "post"."userId") INNER JOIN "comment" ON ("post"."id" = "comment"."postId")',
    string: 'SELECT "user"."name", "post"."content", "comment"."text" FROM "user" INNER JOIN "post" ON ("user"."id" = "post"."userId") INNER JOIN "comment" ON ("post"."id" = "comment"."postId")'
  },
  mysql: {
    text  : 'SELECT `user`.`name`, `post`.`content`, `comment`.`text` FROM `user` INNER JOIN `post` ON (`user`.`id` = `post`.`userId`) INNER JOIN `comment` ON (`post`.`id` = `comment`.`postId`)',
    string: 'SELECT `user`.`name`, `post`.`content`, `comment`.`text` FROM `user` INNER JOIN `post` ON (`user`.`id` = `post`.`userId`) INNER JOIN `comment` ON (`post`.`id` = `comment`.`postId`)'
  },
  params: []
});

Harness.test({
  query: user.select(user.name, post.content).from(user.leftJoin(post).on(user.id.equals(post.userId))),
  pg: {
    text  : 'SELECT "user"."name", "post"."content" FROM "user" LEFT JOIN "post" ON ("user"."id" = "post"."userId")',
    string: 'SELECT "user"."name", "post"."content" FROM "user" LEFT JOIN "post" ON ("user"."id" = "post"."userId")'
  },
  sqlite: {
    text  : 'SELECT "user"."name", "post"."content" FROM "user" LEFT JOIN "post" ON ("user"."id" = "post"."userId")',
    string: 'SELECT "user"."name", "post"."content" FROM "user" LEFT JOIN "post" ON ("user"."id" = "post"."userId")'
  },
  mysql: {
    text  : 'SELECT `user`.`name`, `post`.`content` FROM `user` LEFT JOIN `post` ON (`user`.`id` = `post`.`userId`)',
    string: 'SELECT `user`.`name`, `post`.`content` FROM `user` LEFT JOIN `post` ON (`user`.`id` = `post`.`userId`)'
  },
  params: []
});

Harness.test({
  query: user
    .select(user.name, post.content)
    .from(
    user
    .leftJoin(post).on(user.id.equals(post.userId))
    .leftJoin(comment).on(post.id.equals(comment.postId))),
  pg: {
    text  : 'SELECT "user"."name", "post"."content" FROM "user" LEFT JOIN "post" ON ("user"."id" = "post"."userId") LEFT JOIN "comment" ON ("post"."id" = "comment"."postId")',
    string: 'SELECT "user"."name", "post"."content" FROM "user" LEFT JOIN "post" ON ("user"."id" = "post"."userId") LEFT JOIN "comment" ON ("post"."id" = "comment"."postId")'
  },
  sqlite: {
    text  : 'SELECT "user"."name", "post"."content" FROM "user" LEFT JOIN "post" ON ("user"."id" = "post"."userId") LEFT JOIN "comment" ON ("post"."id" = "comment"."postId")',
    string: 'SELECT "user"."name", "post"."content" FROM "user" LEFT JOIN "post" ON ("user"."id" = "post"."userId") LEFT JOIN "comment" ON ("post"."id" = "comment"."postId")'
  },
  mysql: {
    text  : 'SELECT `user`.`name`, `post`.`content` FROM `user` LEFT JOIN `post` ON (`user`.`id` = `post`.`userId`) LEFT JOIN `comment` ON (`post`.`id` = `comment`.`postId`)',
    string: 'SELECT `user`.`name`, `post`.`content` FROM `user` LEFT JOIN `post` ON (`user`.`id` = `post`.`userId`) LEFT JOIN `comment` ON (`post`.`id` = `comment`.`postId`)'
  },
  params: []
});

var subposts = post
  .subQuery('subposts')
  .select(
  post.content,
  post.userId.as('subpostUserId'))
  .from(post);

Harness.test({
  query: user
    .select(user.name, subposts.content)
    .from(user.join(subposts)
    .on(user.id.equals(subposts.subpostUserId))),
  pg: {
    text  : 'SELECT "user"."name", "subposts"."content" FROM "user" INNER JOIN (SELECT "post"."content", "post"."userId" AS "subpostUserId" FROM "post") subposts ON ("user"."id" = "subposts"."subpostUserId")',
    string: 'SELECT "user"."name", "subposts"."content" FROM "user" INNER JOIN (SELECT "post"."content", "post"."userId" AS "subpostUserId" FROM "post") subposts ON ("user"."id" = "subposts"."subpostUserId")'
  },
  sqlite: {
    text  : 'SELECT "user"."name", "subposts"."content" FROM "user" INNER JOIN (SELECT "post"."content", "post"."userId" AS "subpostUserId" FROM "post") subposts ON ("user"."id" = "subposts"."subpostUserId")',
    string: 'SELECT "user"."name", "subposts"."content" FROM "user" INNER JOIN (SELECT "post"."content", "post"."userId" AS "subpostUserId" FROM "post") subposts ON ("user"."id" = "subposts"."subpostUserId")'
  },
  mysql: {
    text  : 'SELECT `user`.`name`, `subposts`.`content` FROM `user` INNER JOIN (SELECT `post`.`content`, `post`.`userId` AS `subpostUserId` FROM `post`) subposts ON (`user`.`id` = `subposts`.`subpostUserId`)',
    string: 'SELECT `user`.`name`, `subposts`.`content` FROM `user` INNER JOIN (SELECT `post`.`content`, `post`.`userId` AS `subpostUserId` FROM `post`) subposts ON (`user`.`id` = `subposts`.`subpostUserId`)'
  },
  params: []
});