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# 2022 May 17
#
# 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.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix joinH
do_execsql_test 1.0 {
CREATE TABLE t1(a INT);
CREATE TABLE t2(b INT);
INSERT INTO t2(b) VALUES(NULL);
}
db nullvalue NULL
do_execsql_test 1.1 {
SELECT DISTINCT a FROM t1 FULL JOIN t2 ON true WHERE (b ISNULL);
} {NULL}
do_execsql_test 1.2 {
SELECT a FROM t1 FULL JOIN t2 ON true;
} {NULL}
do_execsql_test 1.3 {
SELECT a FROM t1 FULL JOIN t2 ON true WHERE (b ISNULL);
} {NULL}
do_execsql_test 1.4 {
SELECT DISTINCT a FROM t1 FULL JOIN t2 ON true;
} {NULL}
#-----------------------------------------------------------
reset_db
do_execsql_test 2.0 {
CREATE TABLE r3(x);
CREATE TABLE r4(y INTEGER PRIMARY KEY);
INSERT INTO r4 VALUES(55);
}
do_execsql_test 2.1 {
SELECT 'value!' FROM r3 FULL JOIN r4 ON (y=x);
} {value!}
do_execsql_test 2.2 {
SELECT 'value!' FROM r3 FULL JOIN r4 ON (y=x) WHERE +y=55;
} {value!}
#-----------------------------------------------------------
reset_db
do_execsql_test 3.1 {
CREATE TABLE t0 (c0);
CREATE TABLE t1 (c0);
CREATE TABLE t2 (c0 , c1 , c2 , UNIQUE (c0), UNIQUE (c2 DESC));
INSERT INTO t2 VALUES ('x', 'y', 'z');
ANALYZE;
CREATE VIEW v0(c0) AS SELECT FALSE;
}
do_catchsql_test 3.2 {
SELECT * FROM t0 LEFT OUTER JOIN t1 ON v0.c0 INNER JOIN v0 INNER JOIN t2 ON (t2.c2 NOT NULL);
} {1 {ON clause references tables to its right}}
#-------------------------------------------------------------
reset_db
do_execsql_test 4.1 {
CREATE TABLE t1(a,b,c,d,e,f,g,h,PRIMARY KEY(a,b,c)) WITHOUT ROWID;
CREATE TABLE t2(i, j);
INSERT INTO t2 VALUES(10, 20);
}
do_execsql_test 4.2 {
SELECT (d IS NULL) FROM t1 RIGHT JOIN t2 ON (j=33);
} {1}
do_execsql_test 4.3 {
CREATE INDEX i1 ON t1( (d IS NULL), d );
}
do_execsql_test 4.4 {
SELECT (d IS NULL) FROM t1 RIGHT JOIN t2 ON (j=33);
} {1}
#-------------------------------------------------------------------------
#
reset_db
do_execsql_test 5.0 {
CREATE TABLE t0(w);
CREATE TABLE t1(x);
CREATE TABLE t2(y);
CREATE TABLE t3(z);
INSERT INTO t3 VALUES('t3val');
}
do_execsql_test 5.1 {
SELECT * FROM t1 INNER JOIN t2 ON (0) RIGHT OUTER JOIN t3;
} {{} {} t3val}
do_execsql_test 5.2 {
SELECT * FROM t1 INNER JOIN t2 ON (0) FULL OUTER JOIN t3;
} {{} {} t3val}
do_execsql_test 5.3 {
SELECT * FROM t3 LEFT JOIN t2 ON (0);
} {t3val {}}
do_execsql_test 5.4 {
SELECT * FROM t0 RIGHT JOIN t1 INNER JOIN t2 ON (0) RIGHT JOIN t3
} {{} {} {} t3val}
do_execsql_test 5.5 {
SELECT * FROM t0 RIGHT JOIN t1 INNER JOIN t2 ON (0)
} {}
reset_db
db null NULL
do_execsql_test 6.0 {
CREATE TABLE t1(a INT);
CREATE TABLE t2(b INT);
INSERT INTO t1 VALUES(3);
SELECT CASE WHEN t2.b THEN 0 ELSE 1 END FROM t1 LEFT JOIN t2 ON true;
} {1}
do_execsql_test 6.1 {
SELECT * FROM t1 LEFT JOIN t2 ON true WHERE CASE WHEN t2.b THEN 0 ELSE 1 END;
} {3 NULL}
finish_test
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