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155 lines
4.0 KiB
Plaintext
155 lines
4.0 KiB
Plaintext
# 2007 June 8
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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 that terms in the ON clause of
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# a LEFT OUTER JOIN are not used with indices. See ticket #3015.
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#
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# $Id: where6.test,v 1.2 2008/04/17 19:14:02 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# Build some test data
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#
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do_test where6-1.1 {
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execsql {
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CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c);
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INSERT INTO t1 VALUES(1,3,1);
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INSERT INTO t1 VALUES(2,4,2);
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CREATE TABLE t2(x INTEGER PRIMARY KEY);
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INSERT INTO t2 VALUES(3);
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SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1;
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}
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} {1 3 1 3 2 4 2 {}}
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do_test where6-1.2 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON x=b AND c=1;
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}
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} {1 3 1 3 2 4 2 {}}
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do_test where6-1.3 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c;
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}
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} {1 3 1 3 2 4 2 {}}
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do_test where6-1.4 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON b=x AND 1=c;
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}
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} {1 3 1 3 2 4 2 {}}
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ifcapable explain {
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do_test where6-1.5 {
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explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c}
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} [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1}]
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do_test where6-1.6 {
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explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c}
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} [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1}]
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}
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do_test where6-1.11 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1;
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}
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} {1 3 1 3}
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do_test where6-1.12 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE c=1;
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}
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} {1 3 1 3}
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do_test where6-1.13 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE 1=c;
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}
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} {1 3 1 3}
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do_test where6-2.1 {
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execsql {
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CREATE INDEX i1 ON t1(c);
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SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1;
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}
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} {1 3 1 3 2 4 2 {}}
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do_test where6-2.2 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON x=b AND c=1;
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}
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} {1 3 1 3 2 4 2 {}}
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do_test where6-2.3 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c;
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}
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} {1 3 1 3 2 4 2 {}}
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do_test where6-2.4 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON b=x AND 1=c;
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}
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} {1 3 1 3 2 4 2 {}}
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ifcapable explain {
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do_test where6-2.5 {
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explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b AND 1=c}
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} [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x AND c=1}]
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do_test where6-2.6 {
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explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c}
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} [explain_no_trace {SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1}]
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}
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do_test where6-2.11 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE c=1;
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}
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} {1 3 1 3}
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do_test where6-2.12 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE c=1;
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}
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} {1 3 1 3}
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do_test where6-2.13 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON x=b WHERE 1=c;
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}
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} {1 3 1 3}
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do_test where6-2.14 {
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execsql {
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SELECT * FROM t1 LEFT JOIN t2 ON b=x WHERE 1=c;
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}
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} {1 3 1 3}
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# Ticket [ebdbadade5b]:
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# If the ON close on a LEFT JOIN is of the form x=y where both x and y
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# are indexed columns on tables to left of the join, then do not use that
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# term with indices to either table.
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#
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do_test where6-3.1 {
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db eval {
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CREATE TABLE t4(x UNIQUE);
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INSERT INTO t4 VALUES('abc');
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INSERT INTO t4 VALUES('def');
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INSERT INTO t4 VALUES('ghi');
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CREATE TABLE t5(a, b, c, PRIMARY KEY(a,b));
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INSERT INTO t5 VALUES('abc','def',123);
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INSERT INTO t5 VALUES('def','ghi',456);
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SELECT t4a.x, t4b.x, t5.c, t6.v
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FROM t4 AS t4a
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INNER JOIN t4 AS t4b
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LEFT JOIN t5 ON t5.a=t4a.x AND t5.b=t4b.x
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LEFT JOIN (SELECT 1 AS v) AS t6 ON t4a.x=t4b.x
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ORDER BY 1, 2, 3;
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}
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} {abc abc {} 1 abc def 123 {} abc ghi {} {} def abc {} {} def def {} 1 def ghi 456 {} ghi abc {} {} ghi def {} {} ghi ghi {} 1}
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finish_test
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