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Overview
| Comment: | In the OP_Column opcode, when extracting a field that is past the end of a short record (because the row was originally inserted prior to ALTER TABLE ADD COLUMN) then make sure the output register is fully NULL and does not contain leftover flags (such as MEM_Ephem) from its previous use. Fix for ticket [43107840f1c02]. |
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| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
24780f8ddc1683fc62180e6961dc6bfe |
| User & Date: | drh 2014-10-29 00:58:38.898 |
References
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2014-10-29
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| 01:13 | In the OP_Column opcode, when extracting a field that is past the end of a short record (because the row was originally inserted prior to ALTER TABLE ADD COLUMN) then make sure the output register is fully NULL and does not contain leftover flags (such as MEM_Ephem) from its previous use. Fix for ticket [43107840f1c02]. This is a cherrypick of check-in [24780f8ddc1683fc]. (check-in: 304ea6ba6f user: drh tags: branch-3.8.7) | |
Context
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2014-10-29
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| 18:20 | Fix the %c format character in sqlite3VXPrintf() so that it correctly handles precisions larger than 70. (check-in: 08a27440f1 user: drh tags: trunk) | |
| 01:13 | In the OP_Column opcode, when extracting a field that is past the end of a short record (because the row was originally inserted prior to ALTER TABLE ADD COLUMN) then make sure the output register is fully NULL and does not contain leftover flags (such as MEM_Ephem) from its previous use. Fix for ticket [43107840f1c02]. This is a cherrypick of check-in [24780f8ddc1683fc]. (check-in: 304ea6ba6f user: drh tags: branch-3.8.7) | |
| 00:58 | In the OP_Column opcode, when extracting a field that is past the end of a short record (because the row was originally inserted prior to ALTER TABLE ADD COLUMN) then make sure the output register is fully NULL and does not contain leftover flags (such as MEM_Ephem) from its previous use. Fix for ticket [43107840f1c02]. (check-in: 24780f8ddc user: drh tags: trunk) | |
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2014-10-28
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| 20:49 | Add new test file e_totalchanges.test, containing tests of the sqlite3_total_changes() interface. (check-in: f84af4adcc user: dan tags: trunk) | |
Changes
Changes to src/vdbe.c.
| ︙ | ︙ | |||
2437 2438 2439 2440 2441 2442 2443 |
** still not up to p2, that means that the record has fewer than p2
** columns. So the result will be either the default value or a NULL.
*/
if( pC->nHdrParsed<=p2 ){
if( pOp->p4type==P4_MEM ){
sqlite3VdbeMemShallowCopy(pDest, pOp->p4.pMem, MEM_Static);
}else{
| | | 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 |
** still not up to p2, that means that the record has fewer than p2
** columns. So the result will be either the default value or a NULL.
*/
if( pC->nHdrParsed<=p2 ){
if( pOp->p4type==P4_MEM ){
sqlite3VdbeMemShallowCopy(pDest, pOp->p4.pMem, MEM_Static);
}else{
sqlite3VdbeMemSetNull(pDest);
}
goto op_column_out;
}
}
/* Extract the content for the p2+1-th column. Control can only
** reach this point if aOffset[p2], aOffset[p2+1], and pC->aType[p2] are
|
| ︙ | ︙ |
Changes to test/update.test.
| ︙ | ︙ | |||
600 601 602 603 604 605 606 607 608 |
catchsql {
UPDATE t4 SET a=1;
}
} {1 {no such column: nosuchcol}}
} ;# ifcapable {trigger}
finish_test
| > > > > > > > > > > > > > > | 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 |
catchsql {
UPDATE t4 SET a=1;
}
} {1 {no such column: nosuchcol}}
} ;# ifcapable {trigger}
# Ticket [https://www.sqlite.org/src/tktview/43107840f1c02] on 2014-10-29
# An assertion fault on UPDATE
#
do_execsql_test update-15.1 {
CREATE TABLE t15(a INTEGER PRIMARY KEY, b);
INSERT INTO t15(a,b) VALUES(10,'abc'),(20,'def'),(30,'ghi');
ALTER TABLE t15 ADD COLUMN c;
CREATE INDEX t15c ON t15(c);
INSERT INTO t15(a,b)
VALUES(5,'zyx'),(15,'wvu'),(25,'tsr'),(35,'qpo');
UPDATE t15 SET c=printf("y%d",a) WHERE c IS NULL;
SELECT a,b,c,'|' FROM t15 ORDER BY a;
} {5 zyx y5 | 10 abc y10 | 15 wvu y15 | 20 def y20 | 25 tsr y25 | 30 ghi y30 | 35 qpo y35 |}
finish_test
|