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Make sure dependencies on the right-hand side of IN operators are checked

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correctly.  Ticket #1433. (CVS 2706)

FossilOrigin-Name: 21740794ab81924442f358a6adbbe6d5590cf58d
This commit is contained in:
drh
2005-09-17 13:07:13 +00:00
parent 4190d4b53e
commit f5b1138bae
4 changed files with 210 additions and 19 deletions
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13
manifest
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@@ -1,5 +1,5 @@
C Updates\sto\sthe\sFAQ.\s(CVS\s2705)
D 2005-09-17T02:34:05
C Make\ssure\sdependencies\son\sthe\sright-hand\sside\sof\sIN\soperators\sare\schecked\ncorrectly.\s\sTicket\s#1433.\s(CVS\s2706)
D 2005-09-17T13:07:13
F Makefile.in 12784cdce5ffc8dfb707300c34e4f1eb3b8a14f1
F Makefile.linux-gcc 06be33b2a9ad4f005a5f42b22c4a19dab3cbb5c7
F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -87,7 +87,7 @@ F src/vdbeapi.c 85bbe1d0243a89655433d60711b4bd71979b59cd
F src/vdbeaux.c e3a815a88bbf68f17880f5bc077e1c35d14b9409
F src/vdbefifo.c 9efb94c8c3f4c979ebd0028219483f88e57584f5
F src/vdbemem.c fea0744936008831daa17cdc75056c3ca1469690
F src/where.c 53a54c1434be9afa45db3558d9ae09450acea273
F src/where.c a595744df3ce50c5d875bae06798054bbef1d7f9
F tclinstaller.tcl 046e3624671962dc50f0481d7c25b38ef803eb42
F test/all.test 7f0988442ab811dfa41793b5b550f5828ce316f3
F test/alter.test 9d6837a3d946b73df692b7cef2a7644d2e2f6bc6
@@ -217,6 +217,7 @@ F test/tester.tcl 98ecdc5723b3b2be5a8a5c3a7f38fa53031466ee
F test/thread1.test 776c9e459b75ba905193b351926ac4019b049f35
F test/threadtest1.c 6029d9c5567db28e6dc908a0c63099c3ba6c383b
F test/threadtest2.c 97a830d53c24c42290501fdfba4a6e5bdd34748b
F test/tkt1443.test c056bfdabb6c3144bca6f70ce52d32d25101c3b4
F test/trace.test 9fd28695c463b90c2d32c387a432e01eb26e8ccf
F test/trans.test 10506dc30305cfb8c4098359f7f6f64786f69c5e
F test/trigger1.test 152aed5a1fa90709fe171f2ca501a6b7f7901479
@@ -307,7 +308,7 @@ F www/tclsqlite.tcl ddcf912ea48695603c8ed7efb29f0812ef8d1b49
F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
P 5b6dc12b7d25d999be5d282cd0b06e02e2bda765
R 4c6f66bbc06ea3f6edd3c1720650c250
P 0eaf430d9538ece1a3d1300db91f269577a5e028
R 56daf0fd324c3c63c9831d6786cf42e7
U drh
Z db383a7aa31dfbfb4a753232e7f9eb89
Z 3c070837de28d59d54c656780119322f

2
manifest.uuid
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@@ -1 +1 @@
0eaf430d9538ece1a3d1300db91f269577a5e028
21740794ab81924442f358a6adbbe6d5590cf58d

40
src/where.c
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@@ -16,7 +16,7 @@
** so is applicable. Because this module is responsible for selecting
** indices, you might also think of this module as the "query optimizer".
**
** $Id: where.c,v 1.172 2005/09/16 02:38:11 drh Exp $
** $Id: where.c,v 1.173 2005/09/17 13:07:13 drh Exp $
*/
#include "sqliteInt.h"
@@ -304,6 +304,7 @@ static void createMask(ExprMaskSet *pMaskSet, int iCursor){
** the bitmasks together.
*/
static Bitmask exprListTableUsage(ExprMaskSet*, ExprList*);
static Bitmask exprSelectTableUsage(ExprMaskSet*, Select*);
static Bitmask exprTableUsage(ExprMaskSet *pMaskSet, Expr *p){
Bitmask mask = 0;
if( p==0 ) return 0;
@@ -314,14 +315,7 @@ static Bitmask exprTableUsage(ExprMaskSet *pMaskSet, Expr *p){
mask = exprTableUsage(pMaskSet, p->pRight);
mask |= exprTableUsage(pMaskSet, p->pLeft);
mask |= exprListTableUsage(pMaskSet, p->pList);
if( p->pSelect ){
Select *pS = p->pSelect;
mask |= exprListTableUsage(pMaskSet, pS->pEList);
mask |= exprListTableUsage(pMaskSet, pS->pGroupBy);
mask |= exprListTableUsage(pMaskSet, pS->pOrderBy);
mask |= exprTableUsage(pMaskSet, pS->pWhere);
mask |= exprTableUsage(pMaskSet, pS->pHaving);
}
mask |= exprSelectTableUsage(pMaskSet, p->pSelect);
return mask;
}
static Bitmask exprListTableUsage(ExprMaskSet *pMaskSet, ExprList *pList){
@@ -334,6 +328,19 @@ static Bitmask exprListTableUsage(ExprMaskSet *pMaskSet, ExprList *pList){
}
return mask;
}
static Bitmask exprSelectTableUsage(ExprMaskSet *pMaskSet, Select *pS){
Bitmask mask;
if( pS==0 ){
mask = 0;
}else{
mask = exprListTableUsage(pMaskSet, pS->pEList);
mask |= exprListTableUsage(pMaskSet, pS->pGroupBy);
mask |= exprListTableUsage(pMaskSet, pS->pOrderBy);
mask |= exprTableUsage(pMaskSet, pS->pWhere);
mask |= exprTableUsage(pMaskSet, pS->pHaving);
}
return mask;
}
/*
** Return TRUE if the given operator is one of the operators that is
@@ -542,7 +549,13 @@ static void exprAnalyze(
if( sqlite3_malloc_failed ) return;
prereqLeft = exprTableUsage(pMaskSet, pExpr->pLeft);
if( pExpr->op==TK_IN ){
assert( pExpr->pRight==0 );
pTerm->prereqRight = exprListTableUsage(pMaskSet, pExpr->pList)
| exprSelectTableUsage(pMaskSet, pExpr->pSelect);
}else{
pTerm->prereqRight = exprTableUsage(pMaskSet, pExpr->pRight);
}
pTerm->prereqAll = prereqAll = exprTableUsage(pMaskSet, pExpr);
pTerm->leftCursor = -1;
pTerm->iParent = -1;
@@ -550,6 +563,7 @@ static void exprAnalyze(
if( allowedOp(pExpr->op) && (pTerm->prereqRight & prereqLeft)==0 ){
Expr *pLeft = pExpr->pLeft;
Expr *pRight = pExpr->pRight;
assert( prereqAll == (pTerm->prereqRight | prereqLeft) ); /* ticket 1433 */
if( pLeft->op==TK_COLUMN ){
pTerm->leftCursor = pLeft->iTable;
pTerm->leftColumn = pLeft->iColumn;
@@ -608,7 +622,13 @@ static void exprAnalyze(
#ifndef SQLITE_OMIT_OR_OPTIMIZATION
/* Attempt to convert OR-connected terms into an IN operator so that
** they can make use of indices.
** they can make use of indices. Example:
**
** x = expr1 OR expr2 = x OR x = expr3
**
** is converted into
**
** x IN (expr1,expr2,expr3)
*/
else if( pExpr->op==TK_OR ){
int ok;

170
test/tkt1443.test Normal file
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@@ -0,0 +1,170 @@
# 2005 September 17
#
# 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests to verify that ticket #1433 has been
# fixed.
#
# The problem in ticket #1433 was that the dependencies on the right-hand
# side of an IN operator were not being checked correctly. So in an
# expression of the form:
#
# t1.x IN (1,t2.b,3)
#
# the optimizer was missing the fact that the right-hand side of the IN
# depended on table t2. It was checking dependencies based on the
# Expr.pRight field rather than Expr.pList and Expr.pSelect.
#
# Such a bug could be verifed using a less elaborate test case. But
# this test case (from the original bug poster) exercises so many different
# parts of the system all at once, that it seemed like a good one to
# include in the test suite.
#
# $Id: tkt1443.test,v 1.1 2005/09/17 13:07:13 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Construct the sample database.
#
do_test tkt1433-1.0 {
sqlite3 db :memory:
execsql {
CREATE TABLE Items(
itemId integer primary key,
item str unique
);
INSERT INTO "Items" VALUES(0, 'ALL');
INSERT INTO "Items" VALUES(1, 'double:source');
INSERT INTO "Items" VALUES(2, 'double');
INSERT INTO "Items" VALUES(3, 'double:runtime');
INSERT INTO "Items" VALUES(4, '.*:runtime');
CREATE TABLE Labels(
labelId INTEGER PRIMARY KEY,
label STR UNIQUE
);
INSERT INTO "Labels" VALUES(0, 'ALL');
INSERT INTO "Labels" VALUES(1, 'localhost@rpl:linux');
INSERT INTO "Labels" VALUES(2, 'localhost@rpl:branch');
CREATE TABLE LabelMap(
itemId INTEGER,
labelId INTEGER,
branchId integer
);
INSERT INTO "LabelMap" VALUES(1, 1, 1);
INSERT INTO "LabelMap" VALUES(2, 1, 1);
INSERT INTO "LabelMap" VALUES(3, 1, 1);
INSERT INTO "LabelMap" VALUES(1, 2, 2);
INSERT INTO "LabelMap" VALUES(2, 2, 3);
INSERT INTO "LabelMap" VALUES(3, 2, 3);
CREATE TABLE Users (
userId INTEGER PRIMARY KEY,
user STRING UNIQUE,
salt BINARY,
password STRING
);
INSERT INTO "Users" VALUES(1, 'test', 'Šæ$d',
'43ba0f45014306bd6df529551ffdb3df');
INSERT INTO "Users" VALUES(2, 'limited', 'ªš>S',
'cf07c8348fdf675cc1f7696b7d45191b');
CREATE TABLE UserGroups (
userGroupId INTEGER PRIMARY KEY,
userGroup STRING UNIQUE
);
INSERT INTO "UserGroups" VALUES(1, 'test');
INSERT INTO "UserGroups" VALUES(2, 'limited');
CREATE TABLE UserGroupMembers (
userGroupId INTEGER,
userId INTEGER
);
INSERT INTO "UserGroupMembers" VALUES(1, 1);
INSERT INTO "UserGroupMembers" VALUES(2, 2);
CREATE TABLE Permissions (
userGroupId INTEGER,
labelId INTEGER NOT NULL,
itemId INTEGER NOT NULL,
write INTEGER,
capped INTEGER,
admin INTEGER
);
INSERT INTO "Permissions" VALUES(1, 0, 0, 1, 0, 1);
INSERT INTO "Permissions" VALUES(2, 2, 4, 0, 0, 0);
}
} {}
# Run the query with an index
#
do_test tkt1443-1.1 {
execsql {
select distinct
Items.Item as trove, UP.pattern as pattern
from
( select
Permissions.labelId as labelId,
PerItems.item as pattern
from
Users, UserGroupMembers, Permissions
left outer join Items as PerItems
on Permissions.itemId = PerItems.itemId
where
Users.user = 'limited'
and Users.userId = UserGroupMembers.userId
and UserGroupMembers.userGroupId = Permissions.userGroupId
) as UP join LabelMap on ( UP.labelId = 0 or
UP.labelId = LabelMap.labelId ),
Labels, Items
where
Labels.label = 'localhost@rpl:branch'
and Labels.labelId = LabelMap.labelId
and LabelMap.itemId = Items.itemId
ORDER BY +trove, +pattern
}
} {double .*:runtime double:runtime .*:runtime double:source .*:runtime}
# Create an index and rerun the query.
# Verify that the results are the same
#
do_test tkt1443-1.2 {
execsql {
CREATE UNIQUE INDEX PermissionsIdx
ON Permissions(userGroupId, labelId, itemId);
select distinct
Items.Item as trove, UP.pattern as pattern
from
( select
Permissions.labelId as labelId,
PerItems.item as pattern
from
Users, UserGroupMembers, Permissions
left outer join Items as PerItems
on Permissions.itemId = PerItems.itemId
where
Users.user = 'limited'
and Users.userId = UserGroupMembers.userId
and UserGroupMembers.userGroupId = Permissions.userGroupId
) as UP join LabelMap on ( UP.labelId = 0 or
UP.labelId = LabelMap.labelId ),
Labels, Items
where
Labels.label = 'localhost@rpl:branch'
and Labels.labelId = LabelMap.labelId
and LabelMap.itemId = Items.itemId
ORDER BY +trove, +pattern
}
} {double .*:runtime double:runtime .*:runtime double:source .*:runtime}
finish_test