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test/tkt2391.test
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danielk1977
Consider explicit collate clauses when matching WHERE constraints to indices. Fix for #2391. (CVS 4040)
29 май 2007, 16:11
29 май 2007, 16:11
bcbb04e
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# # 2007 May 28 # # 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. # #*********************************************************************** # $Id: tkt2391.test,v 1.1 2007/05/29 12:11:30 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl do_test tkt2391.1 { execsql { CREATE TABLE folders(folderid, parentid, foldername COLLATE binary); INSERT INTO folders VALUES(1, 3, 'FolderA'); INSERT INTO folders VALUES(1, 3, 'folderB'); INSERT INTO folders VALUES(4, 0, 'FolderC'); } } {} do_test tkt2391.2 { execsql { SELECT count(*) FROM folders WHERE foldername < 'FolderC'; } } {1} do_test tkt2391.3 { execsql { SELECT count(*) FROM folders WHERE foldername < 'FolderC' COLLATE nocase; } } {2} # This demonstrates the bug. Creating the index causes SQLite to ignore # the "COLLATE nocase" clause and use the default collation sequence # for column "foldername" instead (happens to be BINARY in this case). # do_test tkt2391.4 { execsql { CREATE INDEX f_i ON folders(foldername); SELECT count(*) FROM folders WHERE foldername < 'FolderC' COLLATE nocase; } } {2} finish_test