59 lines
1.5 KiB
Plaintext
59 lines
1.5 KiB
Plaintext
# 2020-12-16
|
|
#
|
|
# 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. The
|
|
# focus of this file is flattening UNION ALL sub-queries.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
set testprefix unionall
|
|
|
|
do_execsql_test 1.0 {
|
|
CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
|
|
CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
|
|
CREATE TABLE t1_c(e INTEGER PRIMARY KEY, f TEXT);
|
|
|
|
INSERT INTO t1_a VALUES(1, 'one'), (4, 'four');
|
|
INSERT INTO t1_b VALUES(2, 'two'), (5, 'five');
|
|
INSERT INTO t1_c VALUES(3, 'three'), (6, 'six');
|
|
|
|
CREATE VIEW t1 AS
|
|
SELECT a, b FROM t1_a UNION ALL
|
|
SELECT c, d FROM t1_b UNION ALL
|
|
SELECT e, f FROM t1_c;
|
|
|
|
CREATE TABLE i1(x);
|
|
INSERT INTO i1 VALUES(2), (5), (6), (1);
|
|
}
|
|
|
|
do_execsql_test 1.1 {
|
|
SELECT a, b FROM (
|
|
SELECT a, b FROM t1_a UNION ALL
|
|
SELECT c, d FROM t1_b UNION ALL
|
|
SELECT e, f FROM t1_c
|
|
) ORDER BY a
|
|
} {
|
|
1 one 2 two 3 three 4 four 5 five 6 six
|
|
}
|
|
|
|
do_execsql_test 1.2 {
|
|
SELECT a, b FROM t1 ORDER BY a
|
|
} {
|
|
1 one 2 two 3 three 4 four 5 five 6 six
|
|
}
|
|
|
|
do_execsql_test 1.3 {
|
|
SELECT a, b FROM i1, t1 WHERE a=x ORDER BY a
|
|
} {1 one 2 two 5 five 6 six}
|
|
|
|
|
|
finish_test
|