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Overview
| Comment: | Fix a problem with the fix for [9cf6c9bb51] (commit [658b84d7]) that could cause a cursor to be left in an invalid state following a (rowid < text-value) search. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
bc7d2c1656396bb4f5f1f814e60dbf81 |
| User & Date: | dan 2019-05-14 20:25:22 |
Context
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2019-05-15
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| 10:16 | Simplify the "Verifying Code Authenticity" section of the README.md file. No code changes. check-in: adebffc1 user: drh tags: trunk | |
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2019-05-14
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| 22:25 | Merge all the latest trunk enhancements into the reuse-schema branch. check-in: 018f3199 user: drh tags: reuse-schema | |
| 22:02 | Merge the latest trunk enhancements into the wal2 branch. check-in: 23ec34e4 user: drh tags: wal2 | |
| 21:51 | Merge the latest trunk enhancements into begin-concurrent-pnu. check-in: e70878b3 user: drh tags: begin-concurrent-pnu | |
| 21:51 | Merge the latest trunk enhancements into begin-concurrent. check-in: 5d3a6e18 user: drh tags: begin-concurrent | |
| 20:25 | Fix a problem with the fix for [9cf6c9bb51] (commit [658b84d7]) that could cause a cursor to be left in an invalid state following a (rowid < text-value) search. check-in: bc7d2c16 user: dan tags: trunk | |
| 19:20 | New test cases in test/fuzzdata8.db. check-in: 228e1087 user: drh tags: trunk | |
Changes
Changes to src/vdbe.c.
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oc = pOp->opcode;
eqOnly = 0;
pC->nullRow = 0;
#ifdef SQLITE_DEBUG
pC->seekOp = pOp->opcode;
#endif
if( pC->isTable ){
/* The BTREE_SEEK_EQ flag is only set on index cursors */
assert( sqlite3BtreeCursorHasHint(pC->uc.pCursor, BTREE_SEEK_EQ)==0
|| CORRUPT_DB );
/* The input value in P3 might be of any type: integer, real, string,
** blob, or NULL. But it needs to be an integer before we can do
................................................................................
goto abort_due_to_error;
}
if( eqOnly && r.eqSeen==0 ){
assert( res!=0 );
goto seek_not_found;
}
}
pC->deferredMoveto = 0;
pC->cacheStatus = CACHE_STALE;
#ifdef SQLITE_TEST
sqlite3_search_count++;
#endif
if( oc>=OP_SeekGE ){ assert( oc==OP_SeekGE || oc==OP_SeekGT );
if( res<0 || (res==0 && oc==OP_SeekGT) ){
res = 0;
rc = sqlite3BtreeNext(pC->uc.pCursor, 0);
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oc = pOp->opcode; eqOnly = 0; pC->nullRow = 0; #ifdef SQLITE_DEBUG pC->seekOp = pOp->opcode; #endif pC->deferredMoveto = 0; pC->cacheStatus = CACHE_STALE; if( pC->isTable ){ /* The BTREE_SEEK_EQ flag is only set on index cursors */ assert( sqlite3BtreeCursorHasHint(pC->uc.pCursor, BTREE_SEEK_EQ)==0 || CORRUPT_DB ); /* The input value in P3 might be of any type: integer, real, string, ** blob, or NULL. But it needs to be an integer before we can do ................................................................................ goto abort_due_to_error; } if( eqOnly && r.eqSeen==0 ){ assert( res!=0 ); goto seek_not_found; } } #ifdef SQLITE_TEST sqlite3_search_count++; #endif if( oc>=OP_SeekGE ){ assert( oc==OP_SeekGE || oc==OP_SeekGT ); if( res<0 || (res==0 && oc==OP_SeekGT) ){ res = 0; rc = sqlite3BtreeNext(pC->uc.pCursor, 0); |
Changes to test/rowid.test.
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do_execsql_test rowid-14.3 {
DELETE FROM t14;
SELECT * FROM t14 WHERE x < 'a' ORDER BY rowid ASC;
} {}
do_execsql_test rowid-14.4 {
SELECT * FROM t14 WHERE x < 'a' ORDER BY rowid DESC;
} {}
finish_test
|
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do_execsql_test rowid-14.3 {
DELETE FROM t14;
SELECT * FROM t14 WHERE x < 'a' ORDER BY rowid ASC;
} {}
do_execsql_test rowid-14.4 {
SELECT * FROM t14 WHERE x < 'a' ORDER BY rowid DESC;
} {}
reset_db
do_execsql_test rowid-15.0 {
PRAGMA reverse_unordered_selects=true;
CREATE TABLE t1 (c0, c1);
CREATE TABLE t2 (c0 INT UNIQUE);
INSERT INTO t1(c0, c1) VALUES (0, 0), (0, NULL);
INSERT INTO t2(c0) VALUES (1);
}
do_execsql_test rowid-15.1 {
SELECT t2.c0, t1.c1 FROM t1, t2
WHERE (t2.rowid <= 'a') OR (t1.c0 <= t2.c0) LIMIT 100
} {1 {} 1 0}
do_execsql_test rowid-15.2 {
SELECT 1, NULL INTERSECT SELECT * FROM (
SELECT t2.c0, t1.c1 FROM t1, t2
WHERE ((t2.rowid <= 'a')) OR (t1.c0 <= t2.c0) ORDER BY 'a' DESC LIMIT 100
);
} {1 {}}
finish_test
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