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Overview
| Comment: | Check that a unique index uses the default collation sequences for each column before using it as part of a foreign key constraint operation. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 64154174cf8a53bd9be818db53cb0e58 |
| User & Date: | dan 2009-09-29 15:41:58 |
Context
|
2009-09-29
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| 16:38 | Use the affinity and collation sequence associated with the parent key when finding child table rows to apply a foreign key action to. check-in: 9a4b7ec2 user: dan tags: trunk | |
| 15:41 | Check that a unique index uses the default collation sequences for each column before using it as part of a foreign key constraint operation. check-in: 64154174 user: dan tags: trunk | |
| 11:28 | Remove an unused variable from fkey.c. check-in: 582bd768 user: dan tags: trunk | |
Changes
Changes to src/fkey.c.
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for(i=0; i<nCol; i++) aiCol[i] = pFKey->aCol[i].iFrom;
}
break;
}
}else{
/* If zKey is non-NULL, then this foreign key was declared to
** map to an explicit list of columns in table pParent. Check if this
** index matches those columns. */
int i, j;
for(i=0; i<nCol; i++){
char *zIdxCol = pParent->aCol[pIdx->aiColumn[i]].zName;
for(j=0; j<nCol; j++){
if( sqlite3StrICmp(pFKey->aCol[j].zCol, zIdxCol)==0 ){
if( aiCol ) aiCol[i] = pFKey->aCol[j].iFrom;
break;
}
}
if( j==nCol ) break;
|
| > > > > > > > > > > > > > > | |
237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 |
for(i=0; i<nCol; i++) aiCol[i] = pFKey->aCol[i].iFrom;
}
break;
}
}else{
/* If zKey is non-NULL, then this foreign key was declared to
** map to an explicit list of columns in table pParent. Check if this
** index matches those columns. Also, check that the index uses
** the default collation sequences for each column. */
int i, j;
for(i=0; i<nCol; i++){
int iCol = pIdx->aiColumn[i]; /* Index of column in parent tbl */
char *zDfltColl; /* Def. collation for column */
char *zIdxCol; /* Name of indexed column */
/* If the index uses a collation sequence that is different from
** the default collation sequence for the column, this index is
** unusable. Bail out early in this case. */
zDfltColl = pParent->aCol[iCol].zColl;
if( !zDfltColl ){
zDfltColl = "BINARY";
}
if( sqlite3StrICmp(pIdx->azColl[i], zDfltColl) ) break;
zIdxCol = pParent->aCol[iCol].zName;
for(j=0; j<nCol; j++){
if( sqlite3StrICmp(pFKey->aCol[j].zCol, zIdxCol)==0 ){
if( aiCol ) aiCol[i] = pFKey->aCol[j].iFrom;
break;
}
}
if( j==nCol ) break;
|
Changes to test/fkey2.test.
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} {}
foreach {tn zSql res} $FkeySimpleTests {
if {$res == "0 {}"} { set res {0 1} }
do_test fkey2-1.3.$tn { catchsql $zSql } $res
}
execsql { PRAGMA count_changes = 0 }
drop_all_tables
# Special test: When the parent key is an IPK, make sure the affinity of
# the IPK is not applied to the child key value before it is inserted
# into the child table.
do_test fkey2-1.4.1 {
execsql {
CREATE TABLE i(i INTEGER PRIMARY KEY);
CREATE TABLE j(j REFERENCES i);
INSERT INTO i VALUES(35);
INSERT INTO j VALUES('35.0');
SELECT j, typeof(j) FROM j;
}
} {35.0 text}
do_test fkey2-1.4.2 {
catchsql { DELETE FROM i }
} {1 {foreign key constraint failed}}
# Same test using a regular primary key with integer affinity.
drop_all_tables
do_test fkey2-1.5.1 {
execsql {
CREATE TABLE i(i INT UNIQUE);
CREATE TABLE j(j REFERENCES i(i));
INSERT INTO i VALUES('35.0');
INSERT INTO j VALUES('35.0');
SELECT j, typeof(j) FROM j;
SELECT i, typeof(i) FROM i;
}
} {35.0 text 35 integer}
do_test fkey2-1.5.2 {
catchsql { DELETE FROM i }
} {1 {foreign key constraint failed}}
# Use a collation sequence on the parent key.
drop_all_tables
do_test fkey2-1.6.1 {
execsql {
CREATE TABLE i(i TEXT COLLATE nocase PRIMARY KEY);
CREATE TABLE j(j TEXT COLLATE binary REFERENCES i(i));
INSERT INTO i VALUES('SQLite');
INSERT INTO j VALUES('sqlite');
}
catchsql { DELETE FROM i }
} {1 {foreign key constraint failed}}
# Use the parent key collation even if it is default and the child key
# has an explicit value.
drop_all_tables
do_test fkey2-1.6.2 {
execsql {
CREATE TABLE i(i TEXT PRIMARY KEY); -- Colseq is "BINARY"
CREATE TABLE j(j TEXT COLLATE nocase REFERENCES i(i));
INSERT INTO i VALUES('SQLite');
}
catchsql { INSERT INTO j VALUES('sqlite') }
} {1 {foreign key constraint failed}}
do_test fkey2-1.6.3 {
execsql {
INSERT INTO i VALUES('sqlite');
INSERT INTO j VALUES('sqlite');
DELETE FROM i WHERE i = 'SQLite';
}
catchsql { DELETE FROM i WHERE i = 'sqlite' }
} {1 {foreign key constraint failed}}
................................................................................
execsql BEGIN;
catchsql { UPDATE ab SET a = 5 }
} {1 {constraint failed}}
do_test fkey2-3.1.5 {
execsql COMMIT;
execsql { SELECT * FROM ab; SELECT * FROM cd; SELECT * FROM ef }
} {1 b 1 d 1 e}
do_test fkey2-3.2.1 {
execsql BEGIN;
catchsql { DELETE FROM ab }
} {1 {foreign key constraint failed}}
do_test fkey2-3.2.2 {
execsql COMMIT
execsql { SELECT * FROM ab; SELECT * FROM cd; SELECT * FROM ef }
................................................................................
do_test fkey2-9.1.4 {
execsql { SELECT * FROM t1 }
} {2 two}
do_test fkey2-9.1.5 {
catchsql { DELETE FROM t1 }
} {1 {foreign key constraint failed}}
#-------------------------------------------------------------------------
# The following tests, fkey2-10.*, test "foreign key mismatch" and
# other errors.
#
set tn 1
foreach zSql [list {
CREATE TABLE p(a PRIMARY KEY, b);
................................................................................
CREATE TABLE c(x REFERENCES p(c));
} {
CREATE TABLE c(x REFERENCES v(y));
CREATE VIEW v AS SELECT x AS y FROM c;
} {
CREATE TABLE p(a, b, PRIMARY KEY(a, b));
CREATE TABLE c(x REFERENCES p);
}] {
drop_all_tables
do_test fkey2-10.1.$tn {
execsql $zSql
catchsql { INSERT INTO c DEFAULT VALUES }
} {1 {foreign key mismatch}}
................................................................................
x REFERENCES t1 ON UPDATE RESTRICT DEFERRABLE INITIALLY DEFERRED
);
INSERT INTO t1 VALUES(1, 'one');
INSERT INTO t1 VALUES(2, 'two');
INSERT INTO t1 VALUES(3, 'three');
}
} {}
do_test fkey2-12.1.2 {
execsql "BEGIN"
execsql "INSERT INTO t2 VALUES('two')"
} {}
do_test fkey2-12.1.3 {
execsql "UPDATE t1 SET b = 'four' WHERE b = 'one'"
} {}
|
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} {}
foreach {tn zSql res} $FkeySimpleTests {
if {$res == "0 {}"} { set res {0 1} }
do_test fkey2-1.3.$tn { catchsql $zSql } $res
}
execsql { PRAGMA count_changes = 0 }
drop_all_tables
do_test fkey2-1.4.0 {
execsql [string map {/D/ {}} $FkeySimpleSchema]
execsql { PRAGMA count_changes = 1 }
} {}
foreach {tn zSql res} $FkeySimpleTests {
if {$res == "0 {}"} { set res {0 1} }
execsql BEGIN
do_test fkey2-1.4.$tn { catchsql $zSql } $res
execsql COMMIT
}
execsql { PRAGMA count_changes = 0 }
drop_all_tables
# Special test: When the parent key is an IPK, make sure the affinity of
# the IPK is not applied to the child key value before it is inserted
# into the child table.
do_test fkey2-1.5.1 {
execsql {
CREATE TABLE i(i INTEGER PRIMARY KEY);
CREATE TABLE j(j REFERENCES i);
INSERT INTO i VALUES(35);
INSERT INTO j VALUES('35.0');
SELECT j, typeof(j) FROM j;
}
} {35.0 text}
do_test fkey2-1.5.2 {
catchsql { DELETE FROM i }
} {1 {foreign key constraint failed}}
# Same test using a regular primary key with integer affinity.
drop_all_tables
do_test fkey2-1.6.1 {
execsql {
CREATE TABLE i(i INT UNIQUE);
CREATE TABLE j(j REFERENCES i(i));
INSERT INTO i VALUES('35.0');
INSERT INTO j VALUES('35.0');
SELECT j, typeof(j) FROM j;
SELECT i, typeof(i) FROM i;
}
} {35.0 text 35 integer}
do_test fkey2-1.6.2 {
catchsql { DELETE FROM i }
} {1 {foreign key constraint failed}}
# Use a collation sequence on the parent key.
drop_all_tables
do_test fkey2-1.7.1 {
execsql {
CREATE TABLE i(i TEXT COLLATE nocase PRIMARY KEY);
CREATE TABLE j(j TEXT COLLATE binary REFERENCES i(i));
INSERT INTO i VALUES('SQLite');
INSERT INTO j VALUES('sqlite');
}
catchsql { DELETE FROM i }
} {1 {foreign key constraint failed}}
# Use the parent key collation even if it is default and the child key
# has an explicit value.
drop_all_tables
do_test fkey2-1.7.2 {
execsql {
CREATE TABLE i(i TEXT PRIMARY KEY); -- Colseq is "BINARY"
CREATE TABLE j(j TEXT COLLATE nocase REFERENCES i(i));
INSERT INTO i VALUES('SQLite');
}
catchsql { INSERT INTO j VALUES('sqlite') }
} {1 {foreign key constraint failed}}
do_test fkey2-1.7.3 {
execsql {
INSERT INTO i VALUES('sqlite');
INSERT INTO j VALUES('sqlite');
DELETE FROM i WHERE i = 'SQLite';
}
catchsql { DELETE FROM i WHERE i = 'sqlite' }
} {1 {foreign key constraint failed}}
................................................................................
execsql BEGIN;
catchsql { UPDATE ab SET a = 5 }
} {1 {constraint failed}}
do_test fkey2-3.1.5 {
execsql COMMIT;
execsql { SELECT * FROM ab; SELECT * FROM cd; SELECT * FROM ef }
} {1 b 1 d 1 e}
do_test fkey2-3.2.1 {
execsql BEGIN;
catchsql { DELETE FROM ab }
} {1 {foreign key constraint failed}}
do_test fkey2-3.2.2 {
execsql COMMIT
execsql { SELECT * FROM ab; SELECT * FROM cd; SELECT * FROM ef }
................................................................................
do_test fkey2-9.1.4 {
execsql { SELECT * FROM t1 }
} {2 two}
do_test fkey2-9.1.5 {
catchsql { DELETE FROM t1 }
} {1 {foreign key constraint failed}}
do_test fkey2-9.2.1 {
execsql {
CREATE TABLE pp(a, b, c, PRIMARY KEY(b, c));
CREATE TABLE cc(d DEFAULT 3, e DEFAULT 1, f DEFAULT 2,
FOREIGN KEY(f, d) REFERENCES pp
ON UPDATE SET DEFAULT
ON DELETE SET NULL
);
INSERT INTO pp VALUES(1, 2, 3);
INSERT INTO pp VALUES(4, 5, 6);
INSERT INTO pp VALUES(7, 8, 9);
}
} {}
do_test fkey2-9.2.2 {
execsql {
INSERT INTO cc VALUES(6, 'A', 5);
INSERT INTO cc VALUES(6, 'B', 5);
INSERT INTO cc VALUES(9, 'A', 8);
INSERT INTO cc VALUES(9, 'B', 8);
UPDATE pp SET b = 1 WHERE a = 7;
SELECT * FROM cc;
}
} {6 A 5 6 B 5 3 A 2 3 B 2}
do_test fkey2-9.2.3 {
execsql {
DELETE FROM pp WHERE a = 4;
SELECT * FROM cc;
}
} {{} A {} {} B {} 3 A 2 3 B 2}
#-------------------------------------------------------------------------
# The following tests, fkey2-10.*, test "foreign key mismatch" and
# other errors.
#
set tn 1
foreach zSql [list {
CREATE TABLE p(a PRIMARY KEY, b);
................................................................................
CREATE TABLE c(x REFERENCES p(c));
} {
CREATE TABLE c(x REFERENCES v(y));
CREATE VIEW v AS SELECT x AS y FROM c;
} {
CREATE TABLE p(a, b, PRIMARY KEY(a, b));
CREATE TABLE c(x REFERENCES p);
} {
CREATE TABLE p(a COLLATE binary, b);
CREATE UNIQUE INDEX i ON p(a COLLATE nocase);
CREATE TABLE c(x REFERENCES p(a));
}] {
drop_all_tables
do_test fkey2-10.1.$tn {
execsql $zSql
catchsql { INSERT INTO c DEFAULT VALUES }
} {1 {foreign key mismatch}}
................................................................................
x REFERENCES t1 ON UPDATE RESTRICT DEFERRABLE INITIALLY DEFERRED
);
INSERT INTO t1 VALUES(1, 'one');
INSERT INTO t1 VALUES(2, 'two');
INSERT INTO t1 VALUES(3, 'three');
}
} {}
do_test fkey2-12.1.2 {
execsql "BEGIN"
execsql "INSERT INTO t2 VALUES('two')"
} {}
do_test fkey2-12.1.3 {
execsql "UPDATE t1 SET b = 'four' WHERE b = 'one'"
} {}
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