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Overview
| Comment: | Rig sqlite3_serialize() so that it will initialize a previously uninitialized database prior to serializing it, so that it does not have a zero-byte size and does not return NULL (except for OOM). Forum thread 498777780e16880a. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
e638d5e408ea2e189b6771d16bbc2e42 |
| User & Date: | drh 2024-01-20 16:29:19 |
References
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2024-03-06
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| 21:53 | Fix a memory leak in new memdb1.test test cases that were added by [e638d5e408ea2e18]. No changes to SQLite itself. (check-in: f0a49dc8 user: drh tags: branch-3.45) | |
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2024-01-20
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| 18:21 | Fix a memory leak in new memdb1.test test cases that were added by [e638d5e408ea2e18]. No changes to SQLite itself. (check-in: bb2b7a65 user: drh tags: trunk) | |
Context
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2024-03-06
| ||
| 20:55 | Rig sqlite3_serialize() so that it will initialize a previously uninitialized database prior to serializing it, so that it does not have a zero-byte size and does not return NULL (except for OOM). Forum thread 498777780e16880a. (check-in: 22a33f13 user: mistachkin tags: branch-3.45) | |
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2024-01-20
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| 16:38 | Make sure that %V and %G are testing for every since day in between 1970-01-01 and 2023-01-19. (check-in: 39c475f5 user: drh tags: trunk) | |
| 16:29 | Rig sqlite3_serialize() so that it will initialize a previously uninitialized database prior to serializing it, so that it does not have a zero-byte size and does not return NULL (except for OOM). Forum thread 498777780e16880a. (check-in: e638d5e4 user: drh tags: trunk) | |
| 15:13 | When doing a text-affinity comparison between two values where one or both have both a text and a numeric type, make sure the numeric type does not confuse the answer. This is a deeper fix to the problem observed by forum pose 3776b48e71. The problem bisects to [25f2246be404f38b] on 2014-08-24, prior to version 3.8.7. (check-in: 709841f8 user: drh tags: trunk) | |
Changes
Changes to src/memdb.c.
| ︙ | ︙ | |||
795 796 797 798 799 800 801 802 803 804 805 806 807 808 |
sqlite3_free(zSql);
if( rc ) return 0;
rc = sqlite3_step(pStmt);
if( rc!=SQLITE_ROW ){
pOut = 0;
}else{
sz = sqlite3_column_int64(pStmt, 0)*szPage;
if( piSize ) *piSize = sz;
if( mFlags & SQLITE_SERIALIZE_NOCOPY ){
pOut = 0;
}else{
pOut = sqlite3_malloc64( sz );
if( pOut ){
int nPage = sqlite3_column_int(pStmt, 0);
| > > > > > > > > | 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 |
sqlite3_free(zSql);
if( rc ) return 0;
rc = sqlite3_step(pStmt);
if( rc!=SQLITE_ROW ){
pOut = 0;
}else{
sz = sqlite3_column_int64(pStmt, 0)*szPage;
if( sz==0 ){
sqlite3_reset(pStmt);
sqlite3_exec(db, "BEGIN IMMEDIATE; COMMIT;", 0, 0, 0);
rc = sqlite3_step(pStmt);
if( rc==SQLITE_ROW ){
sz = sqlite3_column_int64(pStmt, 0)*szPage;
}
}
if( piSize ) *piSize = sz;
if( mFlags & SQLITE_SERIALIZE_NOCOPY ){
pOut = 0;
}else{
pOut = sqlite3_malloc64( sz );
if( pOut ){
int nPage = sqlite3_column_int(pStmt, 0);
|
| ︙ | ︙ |
Changes to test/memdb1.test.
| ︙ | ︙ | |||
262 263 264 265 266 267 268 269 270 |
SELECT * FROM t1;
} {1 2 3 4}
do_catchsql_test 830 {
PRAGMA wal_checkpoint;
} {1 {database disk image is malformed}}
}
finish_test
| > > > > > > > > > > > > | 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 |
SELECT * FROM t1;
} {1 2 3 4}
do_catchsql_test 830 {
PRAGMA wal_checkpoint;
} {1 {database disk image is malformed}}
}
# 2024-01-20
# https://sqlite.org/forum/forumpost/498777780e16880a
#
# Make sure a database is initialized before serializing it.
#
reset_db
sqlite3 dbempty :memory:
do_test 900 {
set len [string length [dbempty serialize]]
expr {$len>0}
} 1
finish_test
|