turso/testing/join.test

#!/usr/bin/env tclsh

set testdir [file dirname $argv0]
source $testdir/tester.tcl

do_execsql_test cross-join {
    select * from users, products limit 1;
} {1|Jamie|Foster|dylan00@example.com|496-522-9493|62375\ Johnson\ Rest\ Suite\ 322|West\ Lauriestad|IL|35865|94|1|hat|79.0}

do_execsql_test cross-join-specific-columns {
    select first_name, price from users, products limit 1;
} {Jamie|79.0}

do_execsql_test inner-join-pk {
    select users.first_name as user_name, products.name as product_name from users join products on users.id = products.id;
} {Jamie|hat
Cindy|cap
Tommy|shirt
Jennifer|sweater
Edward|sweatshirt
Nicholas|shorts
Aimee|jeans
Rachel|sneakers
Matthew|boots
Daniel|coat
Travis|accessories}

do_execsql_test inner-join-non-pk-unqualified {
    select first_name, name from users join products on first_name != name limit 1;
} {Jamie|hat}

do_execsql_test inner-join-non-pk-qualified {
    select users.first_name as user_name, products.name as product_name from users join products on users.first_name = products.name;
} {}

do_execsql_test inner-join-self {
    select u1.first_name as user_name, u2.first_name as neighbor_name from users u1 join users as u2 on u1.id = u2.id + 1 limit 1;
} {Cindy|Jamie}

do_execsql_test inner-join-self-with-where {
    select u1.first_name as user_name, u2.first_name as neighbor_name from users u1 join users as u2 on u1.id = u2.id + 1 where u1.id = 5 limit 1;
} {Edward|Jennifer}

# Uncomment this test when it works. Sqlite3 returns 'Aaron' due to the way it reorders tables in the join based on the where clause.
#do_execsql_test inner-join-with-where-2 {
#    select u.first_name from users u join products as p on u.first_name != p.name where u.last_name = 'Williams' limit 1;
#} {Laura} <-- sqlite3 returns 'Aaron'