0bb28106be
doing the flattening optimization or evaluating subqueries. Otherwise, the result set column names are generated incorrectly or after they are needed. (CVS 553) FossilOrigin-Name: 08f27cb36805d38648274b6fe91dec43a5910057
152 lines
3.2 KiB
Plaintext
152 lines
3.2 KiB
Plaintext
# 2002 February 26
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#
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# 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 VIEW statements.
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#
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# $Id: view.test,v 1.4 2002/05/08 11:54:16 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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do_test view-1.0 {
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execsql {
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CREATE TABLE t1(a,b,c);
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INSERT INTO t1 VALUES(1,2,3);
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INSERT INTO t1 VALUES(4,5,6);
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INSERT INTO t1 VALUES(7,8,9);
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SELECT * FROM t1;
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}
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} {1 2 3 4 5 6 7 8 9}
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do_test view-1.1 {
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execsql {
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BEGIN;
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CREATE VIEW v1 AS SELECT a,b FROM t1;
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SELECT * FROM v1 ORDER BY a;
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}
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} {1 2 4 5 7 8}
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do_test view-1.2 {
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catchsql {
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ROLLBACK;
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SELECT * FROM v1 ORDER BY a;
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}
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} {1 {no such table: v1}}
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do_test view-1.3 {
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execsql {
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CREATE VIEW v1 AS SELECT a,b FROM t1;
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SELECT * FROM v1 ORDER BY a;
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}
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} {1 2 4 5 7 8}
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do_test view-1.3.1 {
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db close
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sqlite db test.db
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execsql {
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SELECT * FROM v1 ORDER BY a;
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}
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} {1 2 4 5 7 8}
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do_test view-1.4 {
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catchsql {
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DROP VIEW v1;
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SELECT * FROM v1 ORDER BY a;
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}
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} {1 {no such table: v1}}
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do_test view-1.5 {
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execsql {
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CREATE VIEW v1 AS SELECT a,b FROM t1;
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SELECT * FROM v1 ORDER BY a;
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}
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} {1 2 4 5 7 8}
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do_test view-1.6 {
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catchsql {
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DROP TABLE t1;
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SELECT * FROM v1 ORDER BY a;
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}
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} {1 {no such table: t1}}
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do_test view-1.7 {
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execsql {
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CREATE TABLE t1(x,a,b,c);
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INSERT INTO t1 VALUES(1,2,3,4);
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INSERT INTO t1 VALUES(4,5,6,7);
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INSERT INTO t1 VALUES(7,8,9,10);
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SELECT * FROM v1 ORDER BY a;
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}
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} {2 3 5 6 8 9}
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do_test view-1.8 {
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db close
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sqlite db test.db
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execsql {
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SELECT * FROM v1 ORDER BY a;
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}
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} {2 3 5 6 8 9}
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do_test view-2.1 {
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execsql {
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CREATE VIEW v2 AS SELECT * FROM t1 WHERE a>5
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}; # No semicolon
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execsql2 {
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SELECT * FROM v2;
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}
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} {x 7 a 8 b 9 c 10}
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do_test view-2.2 {
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catchsql {
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INSERT INTO v2 VALUES(1,2,3,4);
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}
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} {1 {view v2 may not be modified}}
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do_test view-2.3 {
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catchsql {
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UPDATE v2 SET a=10 WHERE a=5;
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}
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} {1 {view v2 may not be modified}}
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do_test view-2.4 {
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catchsql {
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DELETE FROM v2;
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}
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} {1 {view v2 may not be modified}}
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do_test view-2.5 {
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execsql {
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INSERT INTO t1 VALUES(11,12,13,14);
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SELECT * FROM v2 ORDER BY x;
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}
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} {7 8 9 10 11 12 13 14}
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do_test view-2.6 {
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execsql {
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SELECT x FROM v2 WHERE a>10
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}
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} {11}
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# Test that column name of views are generated correctly.
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#
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do_test view-3.1 {
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execsql2 {
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SELECT * FROM v1 LIMIT 1
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}
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} {a 2 b 3}
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do_test view-3.2 {
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execsql2 {
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SELECT * FROM v2 LIMIT 1
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}
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} {x 7 a 8 b 9 c 10}
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do_test view-3.3 {
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execsql2 {
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DROP VIEW v1;
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CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1;
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SELECT * FROM v1 LIMIT 1
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}
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} {xyz 2 pqr 7 c-b 1}
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do_test view-3.4 {
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execsql2 {
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CREATE VIEW v3 AS SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY b;
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SELECT * FROM v3 LIMIT 4;
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}
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} {b 2 b 3 b 5 b 6}
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finish_test
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