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Overview
| Comment: | Restrict the RANDOM() function to have zero arguments. Ticket #3627. (CVS 6229) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
b8b546b6ed799dc1621ef7b06273249a |
| User & Date: | drh 2009-02-02 01:50:40 |
Context
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2009-02-02
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| 16:32 | Update the SUBSTR function so that works consistently when the 2nd parameter is 0. Ticket #3628. (CVS 6230) check-in: 5fc125d3 user: drh tags: trunk | |
| 01:50 | Restrict the RANDOM() function to have zero arguments. Ticket #3627. (CVS 6229) check-in: b8b546b6 user: drh tags: trunk | |
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2009-02-01
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| 19:42 | Fix SUBSTR() so that it returns NULL if any argument is NULL. Ticket #3626. (CVS 6228) check-in: 779fce82 user: drh tags: trunk | |
Changes
Changes to src/func.c.
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** This file contains the C functions that implement various SQL ** functions of SQLite. ** ** There is only one exported symbol in this file - the function ** sqliteRegisterBuildinFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: func.c,v 1.214 2009/02/01 19:42:38 drh Exp $ */ #include "sqliteInt.h" #include <stdlib.h> #include <assert.h> #include "vdbeInt.h" /* ................................................................................ FUNCTION(upper, 1, 0, 0, upperFunc ), FUNCTION(lower, 1, 0, 0, lowerFunc ), FUNCTION(coalesce, 1, 0, 0, 0 ), FUNCTION(coalesce, -1, 0, 0, ifnullFunc ), FUNCTION(coalesce, 0, 0, 0, 0 ), FUNCTION(hex, 1, 0, 0, hexFunc ), FUNCTION(ifnull, 2, 0, 1, ifnullFunc ), FUNCTION(random, -1, 0, 0, randomFunc ), FUNCTION(randomblob, 1, 0, 0, randomBlob ), FUNCTION(nullif, 2, 0, 1, nullifFunc ), FUNCTION(sqlite_version, 0, 0, 0, versionFunc ), FUNCTION(quote, 1, 0, 0, quoteFunc ), FUNCTION(last_insert_rowid, 0, 0, 0, last_insert_rowid), FUNCTION(changes, 0, 0, 0, changes ), FUNCTION(total_changes, 0, 0, 0, total_changes ), |
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** This file contains the C functions that implement various SQL ** functions of SQLite. ** ** There is only one exported symbol in this file - the function ** sqliteRegisterBuildinFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: func.c,v 1.215 2009/02/02 01:50:40 drh Exp $ */ #include "sqliteInt.h" #include <stdlib.h> #include <assert.h> #include "vdbeInt.h" /* ................................................................................ FUNCTION(upper, 1, 0, 0, upperFunc ), FUNCTION(lower, 1, 0, 0, lowerFunc ), FUNCTION(coalesce, 1, 0, 0, 0 ), FUNCTION(coalesce, -1, 0, 0, ifnullFunc ), FUNCTION(coalesce, 0, 0, 0, 0 ), FUNCTION(hex, 1, 0, 0, hexFunc ), FUNCTION(ifnull, 2, 0, 1, ifnullFunc ), FUNCTION(random, 0, 0, 0, randomFunc ), FUNCTION(randomblob, 1, 0, 0, randomBlob ), FUNCTION(nullif, 2, 0, 1, nullifFunc ), FUNCTION(sqlite_version, 0, 0, 0, versionFunc ), FUNCTION(quote, 1, 0, 0, quoteFunc ), FUNCTION(last_insert_rowid, 0, 0, 0, last_insert_rowid), FUNCTION(changes, 0, 0, 0, changes ), FUNCTION(total_changes, 0, 0, 0, total_changes ), |
Changes to test/where2.test.
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# May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing the use of indices in WHERE clauses # based on recent changes to the optimizer. # # $Id: where2.test,v 1.14 2008/10/07 23:46:39 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Build some test data # do_test where2-1.0 { ................................................................................ } } {85 6 7396 7402 nosort t1 *} # When constrained by a UNIQUE index, the ORDER BY clause is always ignored. # do_test where2-2.1 { queryplan { SELECT * FROM t1 WHERE w=85 ORDER BY random(5); } } {85 6 7396 7402 nosort t1 i1w} do_test where2-2.2 { queryplan { SELECT * FROM t1 WHERE x=6 AND y=7396 ORDER BY random(5); } } {85 6 7396 7402 sort t1 i1xy} do_test where2-2.3 { queryplan { SELECT * FROM t1 WHERE rowid=85 AND x=6 AND y=7396 ORDER BY random(5); } } {85 6 7396 7402 nosort t1 *} # Efficient handling of forward and reverse table scans. # do_test where2-3.1 { |
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# May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing the use of indices in WHERE clauses # based on recent changes to the optimizer. # # $Id: where2.test,v 1.15 2009/02/02 01:50:40 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Build some test data # do_test where2-1.0 { ................................................................................ } } {85 6 7396 7402 nosort t1 *} # When constrained by a UNIQUE index, the ORDER BY clause is always ignored. # do_test where2-2.1 { queryplan { SELECT * FROM t1 WHERE w=85 ORDER BY random(); } } {85 6 7396 7402 nosort t1 i1w} do_test where2-2.2 { queryplan { SELECT * FROM t1 WHERE x=6 AND y=7396 ORDER BY random(); } } {85 6 7396 7402 sort t1 i1xy} do_test where2-2.3 { queryplan { SELECT * FROM t1 WHERE rowid=85 AND x=6 AND y=7396 ORDER BY random(); } } {85 6 7396 7402 nosort t1 *} # Efficient handling of forward and reverse table scans. # do_test where2-3.1 { |