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Overview
| Comment: | Fix a bug in autovacuum introduced by (3839). (CVS 3841) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | e39efa195a28f1cd7431b0811bd908dc |
| User & Date: | drh 2007-04-13 04:01:59 |
Context
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2007-04-13
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| 16:06 | Match ORDER BY terms to columns using names in compound queries. Make sure this works for subqueries, especially in the right-hand side of an IN operator. Ticket #2296. (CVS 3842) check-in: cfc6f933 user: drh tags: trunk | |
| 04:01 | Fix a bug in autovacuum introduced by (3839). (CVS 3841) check-in: e39efa19 user: drh tags: trunk | |
| 03:23 | Additional tests designed to detect future performance regressions. (CVS 3840) check-in: 764e7262 user: drh tags: trunk | |
Changes
Changes to src/pager.c.
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** The pager is used to access a database disk file. It implements ** atomic commit and rollback through the use of a journal file that ** is separate from the database file. The pager also implements file ** locking to prevent two processes from writing the same database ** file simultaneously, or one process from reading the database while ** another is writing. ** ** @(#) $Id: pager.c,v 1.327 2007/04/13 02:14:30 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" #include "os.h" #include "pager.h" #include <assert.h> #include <string.h> ................................................................................ rc = pPager->errCode; return rc; } /* Populate the page with data, either by reading from the database ** file, or by setting the entire page to zero. */ if( nMax<(int)pgno || MEMDB || noContent ){ memset(PGHDR_TO_DATA(pPg), 0, pPager->pageSize); pPg->needRead = noContent; IOTRACE(("ZERO %p %d\n", pPager, pgno)); }else{ rc = readDbPage(pPager, pPg, pgno); if( rc!=SQLITE_OK && rc!=SQLITE_IOERR_SHORT_READ ){ pPg->pgno = 0; sqlite3PagerUnref(pPg); return rc; |
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** The pager is used to access a database disk file. It implements ** atomic commit and rollback through the use of a journal file that ** is separate from the database file. The pager also implements file ** locking to prevent two processes from writing the same database ** file simultaneously, or one process from reading the database while ** another is writing. ** ** @(#) $Id: pager.c,v 1.328 2007/04/13 04:01:59 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" #include "os.h" #include "pager.h" #include <assert.h> #include <string.h> ................................................................................ rc = pPager->errCode; return rc; } /* Populate the page with data, either by reading from the database ** file, or by setting the entire page to zero. */ if( nMax<(int)pgno || MEMDB || (noContent && !pPager->alwaysRollback) ){ memset(PGHDR_TO_DATA(pPg), 0, pPager->pageSize); pPg->needRead = noContent && !pPager->alwaysRollback; IOTRACE(("ZERO %p %d\n", pPager, pgno)); }else{ rc = readDbPage(pPager, pPg, pgno); if( rc!=SQLITE_OK && rc!=SQLITE_IOERR_SHORT_READ ){ pPg->pgno = 0; sqlite3PagerUnref(pPg); return rc; |