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Overview
| Comment: | Fix foreign key CASCADE for cases where the parent key is an INTEGER PRIMARY KEY and the parent table contains other columns named "rowid", "_rowid_", and "oid". |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
ed3cbaab6ad49b0cb5b17e44def26c86 |
| User & Date: | drh 2015-04-10 12:04:57 |
Context
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2015-04-10
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| 16:05 | In sqlite3_declare_vtab(), avoid accessing the database structure until after the "api-armour" safety-check has completed and the db mutex has been obtained. check-in: 860e4f8a user: dan tags: trunk | |
| 12:04 | Fix foreign key CASCADE for cases where the parent key is an INTEGER PRIMARY KEY and the parent table contains other columns named "rowid", "_rowid_", and "oid". check-in: ed3cbaab user: drh tags: trunk | |
| 07:55 | Do not allow virtual table constructors to be called recursively. check-in: 0a72726d user: dan tags: trunk | |
Changes
Changes to src/fkey.c.
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Token tFromCol; /* Name of column in child table */
Token tToCol; /* Name of column in parent table */
int iFromCol; /* Idx of column in child table */
Expr *pEq; /* tFromCol = OLD.tToCol */
iFromCol = aiCol ? aiCol[i] : pFKey->aCol[0].iFrom;
assert( iFromCol>=0 );
tToCol.z = pIdx ? pTab->aCol[pIdx->aiColumn[i]].zName : "oid";
tFromCol.z = pFKey->pFrom->aCol[iFromCol].zName;
tToCol.n = sqlite3Strlen30(tToCol.z);
tFromCol.n = sqlite3Strlen30(tFromCol.z);
/* Create the expression "OLD.zToCol = zFromCol". It is important
** that the "OLD.zToCol" term is on the LHS of the = operator, so
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| > |
1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 |
Token tFromCol; /* Name of column in child table */
Token tToCol; /* Name of column in parent table */
int iFromCol; /* Idx of column in child table */
Expr *pEq; /* tFromCol = OLD.tToCol */
iFromCol = aiCol ? aiCol[i] : pFKey->aCol[0].iFrom;
assert( iFromCol>=0 );
assert( pIdx!=0 || (pTab->iPKey>=0 && pTab->iPKey<pTab->nCol) );
tToCol.z = pTab->aCol[pIdx ? pIdx->aiColumn[i] : pTab->iPKey].zName;
tFromCol.z = pFKey->pFrom->aCol[iFromCol].zName;
tToCol.n = sqlite3Strlen30(tToCol.z);
tFromCol.n = sqlite3Strlen30(tFromCol.z);
/* Create the expression "OLD.zToCol = zFromCol". It is important
** that the "OLD.zToCol" term is on the LHS of the = operator, so
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Changes to test/fkey2.test.
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#-------------------------------------------------------------------------
# The following tests, fkey2-11.*, test CASCADE actions.
#
drop_all_tables
do_test fkey2-11.1.1 {
execsql {
CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
CREATE TABLE t2(c, d, FOREIGN KEY(c) REFERENCES t1(a) ON UPDATE CASCADE);
INSERT INTO t1 VALUES(10, 100);
INSERT INTO t2 VALUES(10, 100);
UPDATE t1 SET a = 15;
SELECT * FROM t2;
}
} {15 100}
#-------------------------------------------------------------------------
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#-------------------------------------------------------------------------
# The following tests, fkey2-11.*, test CASCADE actions.
#
drop_all_tables
do_test fkey2-11.1.1 {
execsql {
CREATE TABLE t1(a INTEGER PRIMARY KEY, b, rowid, _rowid_, oid);
CREATE TABLE t2(c, d, FOREIGN KEY(c) REFERENCES t1(a) ON UPDATE CASCADE);
INSERT INTO t1 VALUES(10, 100, 'abc', 'def', 'ghi');
INSERT INTO t2 VALUES(10, 100);
UPDATE t1 SET a = 15;
SELECT * FROM t2;
}
} {15 100}
#-------------------------------------------------------------------------
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