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Overview
| Comment: | Detect when a child node of a btree page has zero entries and report that as a case of database corruption. (CVS 887) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
66c80ae232a78ecb010280ab1aa684cb |
| User & Date: | drh 2003-03-30 18:41:22 |
Context
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2003-03-30
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| 18:58 | Remove the obsolete documentation on how to crosscompile version 1.0 of SQLite. (CVS 888) check-in: ac0622bf user: drh tags: trunk | |
| 18:41 | Detect when a child node of a btree page has zero entries and report that as a case of database corruption. (CVS 887) check-in: 66c80ae2 user: drh tags: trunk | |
| 00:19 | Fix a memory leak in triggers and update tests to show the latest error message text. (CVS 886) check-in: b90d9de3 user: drh tags: trunk | |
Changes
Changes to src/btree.c.
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** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** $Id: btree.c,v 1.84 2003/03/19 03:14:01 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** For a detailed discussion of BTrees, refer to ** ** Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3: ** "Sorting And Searching", pages 473-480. Addison-Wesley ** Publishing Company, Reading, Massachusetts. ................................................................................ assert( pCur->idx<pCur->pPage->nCell || pCur->pPage->u.hdr.rightChild==SWAB32(pBt,newPgno) ); pNewPage->idxParent = pCur->idx; pCur->pPage->idxShift = 0; sqlitepager_unref(pCur->pPage); pCur->pPage = pNewPage; pCur->idx = 0; return SQLITE_OK; } /* ** Move the cursor up to the parent page. ** ** pCur->idx is set to the cell index that contains the pointer |
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** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** $Id: btree.c,v 1.85 2003/03/30 18:41:22 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** For a detailed discussion of BTrees, refer to ** ** Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3: ** "Sorting And Searching", pages 473-480. Addison-Wesley ** Publishing Company, Reading, Massachusetts. ................................................................................ assert( pCur->idx<pCur->pPage->nCell || pCur->pPage->u.hdr.rightChild==SWAB32(pBt,newPgno) ); pNewPage->idxParent = pCur->idx; pCur->pPage->idxShift = 0; sqlitepager_unref(pCur->pPage); pCur->pPage = pNewPage; pCur->idx = 0; if( pNewPage->nCell<1 ) return SQLITE_CORRUPT; return SQLITE_OK; } /* ** Move the cursor up to the parent page. ** ** pCur->idx is set to the cell index that contains the pointer |