# 2002 May 24 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. # # This file implements tests for joins, including outer joins. # set testdir [file dirname $argv0] source $testdir/tester.tcl set testprefix join2 do_test join2-1.1 { execsql { CREATE TABLE t1(a,b); INSERT INTO t1 VALUES(1,11); INSERT INTO t1 VALUES(2,22); INSERT INTO t1 VALUES(3,33); SELECT * FROM t1; } } {1 11 2 22 3 33} do_test join2-1.2 { execsql { CREATE TABLE t2(b,c); INSERT INTO t2 VALUES(11,111); INSERT INTO t2 VALUES(33,333); INSERT INTO t2 VALUES(44,444); SELECT * FROM t2; } } {11 111 33 333 44 444}; do_test join2-1.3 { execsql { CREATE TABLE t3(c,d); INSERT INTO t3 VALUES(111,1111); INSERT INTO t3 VALUES(444,4444); INSERT INTO t3 VALUES(555,5555); SELECT * FROM t3; } } {111 1111 444 4444 555 5555} do_test join2-1.4 { execsql { SELECT * FROM t1 NATURAL JOIN t2 NATURAL JOIN t3 } } {1 11 111 1111} do_test join2-1.5 { execsql { SELECT * FROM t1 NATURAL JOIN t2 NATURAL LEFT OUTER JOIN t3 } } {1 11 111 1111 3 33 333 {}} do_test join2-1.6 { execsql { SELECT * FROM t1 NATURAL LEFT OUTER JOIN t2 NATURAL JOIN t3 } } {1 11 111 1111} ifcapable subquery { do_test join2-1.7 { execsql { SELECT * FROM t1 NATURAL LEFT OUTER JOIN (t2 NATURAL JOIN t3) } } {1 11 111 1111 2 22 {} {} 3 33 {} {}} } #------------------------------------------------------------------------- # Check that ticket [25e335f802ddc] has been resolved. It should be an # error for the ON clause of a LEFT JOIN to refer to a table to its right. # do_execsql_test 2.0 { CREATE TABLE aa(a); CREATE TABLE bb(b); CREATE TABLE cc(c); INSERT INTO aa VALUES('one'); INSERT INTO bb VALUES('one'); INSERT INTO cc VALUES('one'); } do_catchsql_test 2.1 { SELECT * FROM aa LEFT JOIN cc ON (a=b) JOIN bb ON (b=c); } {1 {ON clause references tables to its right}} do_catchsql_test 2.2 { SELECT * FROM aa JOIN cc ON (a=b) JOIN bb ON (b=c); } {0 {one one one}} finish_test