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| 1 # 2013 March 05 |
| 2 # |
| 3 # The author disclaims copyright to this source code. In place of |
| 4 # a legal notice, here is a blessing: |
| 5 # |
| 6 # May you do good and not evil. |
| 7 # May you find forgiveness for yourself and forgive others. |
| 8 # May you share freely, never taking more than you give. |
| 9 # |
| 10 #*********************************************************************** |
| 11 # This file implements regression tests for SQLite library. Specifically, |
| 12 # it tests that ticket [fc7bd6358f]: |
| 13 # |
| 14 # The following SQL yields an incorrect result (zero rows) in all |
| 15 # versions of SQLite between 3.6.14 and 3.7.15.2: |
| 16 # |
| 17 # CREATE TABLE t(textid TEXT); |
| 18 # INSERT INTO t VALUES('12'); |
| 19 # INSERT INTO t VALUES('34'); |
| 20 # CREATE TABLE i(intid INTEGER PRIMARY KEY); |
| 21 # INSERT INTO i VALUES(12); |
| 22 # INSERT INTO i VALUES(34); |
| 23 # |
| 24 # SELECT t1.textid AS a, i.intid AS b, t2.textid AS c |
| 25 # FROM t t1, i, t t2 |
| 26 # WHERE t1.textid = i.intid |
| 27 # AND t1.textid = t2.textid; |
| 28 # |
| 29 # The correct result should be two rows, one with 12|12|12 and the other |
| 30 # with 34|34|34. With this bug, no rows are returned. Bisecting shows that |
| 31 # this bug was introduced with check-in [dd4d67a67454] on 2009-04-23. |
| 32 # |
| 33 |
| 34 set testdir [file dirname $argv0] |
| 35 source $testdir/tester.tcl |
| 36 |
| 37 do_test tkt-fc7bd6358f.100 { |
| 38 db eval { |
| 39 CREATE TABLE t(textid TEXT); |
| 40 INSERT INTO t VALUES('12'); |
| 41 INSERT INTO t VALUES('34'); |
| 42 CREATE TABLE i(intid INTEGER PRIMARY KEY); |
| 43 INSERT INTO i VALUES(12); |
| 44 INSERT INTO i VALUES(34); |
| 45 } |
| 46 } {} |
| 47 unset -nocomplain from |
| 48 unset -nocomplain where |
| 49 unset -nocomplain a |
| 50 unset -nocomplain b |
| 51 foreach {a from} { |
| 52 1 {FROM t t1, i, t t2} |
| 53 2 {FROM i, t t1, t t2} |
| 54 3 {FROM t t1, t t2, i} |
| 55 } { |
| 56 foreach {b where} { |
| 57 1 {WHERE t1.textid=i.intid AND t1.textid=t2.textid} |
| 58 2 {WHERE i.intid=t1.textid AND t1.textid=t2.textid} |
| 59 3 {WHERE t1.textid=i.intid AND i.intid=t2.textid} |
| 60 4 {WHERE t1.textid=i.intid AND t2.textid=i.intid} |
| 61 5 {WHERE i.intid=t1.textid AND i.intid=t2.textid} |
| 62 6 {WHERE i.intid=t1.textid AND t2.textid=i.intid} |
| 63 7 {WHERE t1.textid=t2.textid AND i.intid=t2.textid} |
| 64 8 {WHERE t1.textid=t2.textid AND t2.textid=i.intid} |
| 65 } { |
| 66 do_test tkt-fc7bd6358f.110.$a.$b.1 { |
| 67 db eval {PRAGMA automatic_index=ON} |
| 68 db eval "SELECT t1.textid, i.intid, t2.textid $from $where" |
| 69 } {12 12 12 34 34 34} |
| 70 do_test tkt-fc7bd6358f.110.$a.$b.2 { |
| 71 db eval {PRAGMA automatic_index=OFF} |
| 72 db eval "SELECT t1.textid, i.intid, t2.textid $from $where" |
| 73 } {12 12 12 34 34 34} |
| 74 } |
| 75 } |
| 76 |
| 77 |
| 78 finish_test |
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