223 lines
6.2 KiB
Plaintext
223 lines
6.2 KiB
Plaintext
# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this file is testing compute SELECT statements and nested
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# views.
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#
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# $Id: select7.test,v 1.11 2007/09/12 17:01:45 danielk1977 Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix select7
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ifcapable compound {
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# A 3-way INTERSECT. Ticket #875
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ifcapable tempdb {
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do_test select7-1.1 {
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execsql {
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create temp table t1(x);
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insert into t1 values('amx');
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insert into t1 values('anx');
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insert into t1 values('amy');
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insert into t1 values('bmy');
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select * from t1 where x like 'a__'
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intersect select * from t1 where x like '_m_'
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intersect select * from t1 where x like '__x';
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}
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} {amx}
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}
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# Nested views do not handle * properly. Ticket #826.
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#
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ifcapable view {
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do_test select7-2.1 {
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execsql {
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CREATE TABLE x(id integer primary key, a TEXT NULL);
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INSERT INTO x (a) VALUES ('first');
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CREATE TABLE tempx(id integer primary key, a TEXT NULL);
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INSERT INTO tempx (a) VALUES ('t-first');
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CREATE VIEW tv1 AS SELECT x.id, tx.id FROM x JOIN tempx tx ON tx.id=x.id;
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CREATE VIEW tv1b AS SELECT x.id, tx.id FROM x JOIN tempx tx on tx.id=x.id;
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CREATE VIEW tv2 AS SELECT * FROM tv1 UNION SELECT * FROM tv1b;
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SELECT * FROM tv2;
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}
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} {1 1}
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} ;# ifcapable view
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} ;# ifcapable compound
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# Do not allow GROUP BY without an aggregate. Ticket #1039.
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#
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# Change: force any query with a GROUP BY clause to be processed as
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# an aggregate query, whether it contains aggregates or not.
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#
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ifcapable subquery {
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# do_test select7-3.1 {
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# catchsql {
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# SELECT * FROM (SELECT * FROM sqlite_master) GROUP BY name
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# }
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# } {1 {GROUP BY may only be used on aggregate queries}}
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do_test select7-3.1 {
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catchsql {
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SELECT * FROM (SELECT * FROM sqlite_master) GROUP BY name
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}
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} [list 0 [execsql {SELECT * FROM sqlite_master ORDER BY name}]]
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}
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# Ticket #2018 - Make sure names are resolved correctly on all
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# SELECT statements of a compound subquery.
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#
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ifcapable {subquery && compound} {
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do_test select7-4.1 {
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execsql {
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CREATE TABLE IF NOT EXISTS photo(pk integer primary key, x);
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CREATE TABLE IF NOT EXISTS tag(pk integer primary key, fk int, name);
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SELECT P.pk from PHOTO P WHERE NOT EXISTS (
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SELECT T2.pk from TAG T2 WHERE T2.fk = P.pk
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EXCEPT
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SELECT T3.pk from TAG T3 WHERE T3.fk = P.pk AND T3.name LIKE '%foo%'
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);
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}
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} {}
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do_test select7-4.2 {
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execsql {
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INSERT INTO photo VALUES(1,1);
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INSERT INTO photo VALUES(2,2);
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INSERT INTO photo VALUES(3,3);
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INSERT INTO tag VALUES(11,1,'one');
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INSERT INTO tag VALUES(12,1,'two');
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INSERT INTO tag VALUES(21,1,'one-b');
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SELECT P.pk from PHOTO P WHERE NOT EXISTS (
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SELECT T2.pk from TAG T2 WHERE T2.fk = P.pk
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EXCEPT
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SELECT T3.pk from TAG T3 WHERE T3.fk = P.pk AND T3.name LIKE '%foo%'
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);
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}
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} {2 3}
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}
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# ticket #2347
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#
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ifcapable {subquery && compound} {
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do_test select7-5.1 {
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catchsql {
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CREATE TABLE t2(a,b);
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SELECT 5 IN (SELECT a,b FROM t2);
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}
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} [list 1 \
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{only a single result allowed for a SELECT that is part of an expression}]
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do_test select7-5.2 {
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catchsql {
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SELECT 5 IN (SELECT * FROM t2);
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}
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} [list 1 \
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{only a single result allowed for a SELECT that is part of an expression}]
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do_test select7-5.3 {
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catchsql {
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SELECT 5 IN (SELECT a,b FROM t2 UNION SELECT b,a FROM t2);
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}
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} [list 1 \
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{only a single result allowed for a SELECT that is part of an expression}]
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do_test select7-5.4 {
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catchsql {
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SELECT 5 IN (SELECT * FROM t2 UNION SELECT * FROM t2);
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}
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} [list 1 \
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{only a single result allowed for a SELECT that is part of an expression}]
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}
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# Verify that an error occurs if you have too many terms on a
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# compound select statement.
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#
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if {[clang_sanitize_address]==0} {
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ifcapable compound {
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if {$SQLITE_MAX_COMPOUND_SELECT>0} {
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set sql {SELECT 0}
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set result 0
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for {set i 1} {$i<$SQLITE_MAX_COMPOUND_SELECT} {incr i} {
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append sql " UNION ALL SELECT $i"
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lappend result $i
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}
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do_test select7-6.1 {
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catchsql $sql
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} [list 0 $result]
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append sql { UNION ALL SELECT 99999999}
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do_test select7-6.2 {
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catchsql $sql
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} {1 {too many terms in compound SELECT}}
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}
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}
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}
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# This block of tests verifies that bug aa92c76cd4 is fixed.
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#
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do_test select7-7.1 {
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execsql {
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CREATE TABLE t3(a REAL);
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INSERT INTO t3 VALUES(44.0);
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INSERT INTO t3 VALUES(56.0);
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}
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} {}
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do_test select7-7.2 {
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execsql {
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pragma vdbe_trace = 0;
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SELECT (CASE WHEN a=0 THEN 0 ELSE (a + 25) / 50 END) AS categ, count(*)
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FROM t3 GROUP BY categ
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}
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} {1.38 1 1.62 1}
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do_test select7-7.3 {
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execsql {
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CREATE TABLE t4(a REAL);
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INSERT INTO t4 VALUES( 2.0 );
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INSERT INTO t4 VALUES( 3.0 );
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}
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} {}
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do_test select7-7.4 {
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execsql {
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SELECT (CASE WHEN a=0 THEN 'zero' ELSE a/2 END) AS t FROM t4 GROUP BY t;
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}
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} {1.0 1.5}
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do_test select7-7.5 {
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execsql { SELECT a=0, typeof(a) FROM t4 }
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} {0 real 0 real}
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do_test select7-7.6 {
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execsql { SELECT a=0, typeof(a) FROM t4 GROUP BY a }
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} {0 real 0 real}
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do_test select7-7.7 {
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execsql {
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CREATE TABLE t5(a TEXT, b INT);
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INSERT INTO t5 VALUES(123, 456);
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SELECT typeof(a), a FROM t5 GROUP BY a HAVING a<b;
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}
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} {text 123}
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do_execsql_test 8.0 {
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CREATE TABLE t01(x, y);
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CREATE TABLE t02(x, y);
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}
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do_catchsql_test 8.1 {
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SELECT * FROM (
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SELECT * FROM t01 UNION SELECT x FROM t02
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) WHERE y=1
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} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
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do_catchsql_test 8.2 {
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CREATE VIEW v0 as SELECT x, y FROM t01 UNION SELECT x FROM t02;
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EXPLAIN QUERY PLAN SELECT * FROM v0 WHERE x='0' OR y;
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} {1 {SELECTs to the left and right of UNION do not have the same number of result columns}}
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finish_test
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