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Overview
| Comment: | Avoid an unnecessary memset() in the sqlite3BtreeInsert() routine. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
35ecd4ebc55579175f7c934e4eb1edb9 |
| User & Date: | drh 2016-12-10 13:12:55 |
Context
|
2016-12-12
| ||
| 00:58 | Change the order of comparison for divider cell overflow in balance non-root to avoid a (harmless) reference to an uninitialized variable. check-in: f9f2e23b user: drh tags: trunk | |
|
2016-12-10
| ||
| 13:12 | Avoid an unnecessary memset() in the sqlite3BtreeInsert() routine. check-in: 35ecd4eb user: drh tags: trunk | |
| 12:58 | Reorder the fields in the VdbeCursor object so that those that need to be bulk zeroed on allocation are grouped at the beginning, and the memset() only runs over those fields that really need it. check-in: 8165f88b user: drh tags: trunk | |
Changes
Changes to src/btree.c.
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}else if( loc==0 ){
rc = sqlite3BtreeMovetoUnpacked(pCur, 0, pX->nKey, appendBias, &loc);
if( rc ) return rc;
}
}else if( loc==0 ){
if( pX->nMem ){
UnpackedRecord r;
memset(&r, 0, sizeof(r));
r.pKeyInfo = pCur->pKeyInfo;
r.aMem = pX->aMem;
r.nField = pX->nMem;
rc = sqlite3BtreeMovetoUnpacked(pCur, &r, 0, appendBias, &loc);
}else{
rc = btreeMoveto(pCur, pX->pKey, pX->nKey, appendBias, &loc);
}
if( rc ) return rc;
}
assert( pCur->eState==CURSOR_VALID || (pCur->eState==CURSOR_INVALID && loc) );
|
< > > > > > |
8018 8019 8020 8021 8022 8023 8024 8025 8026 8027 8028 8029 8030 8031 8032 8033 8034 8035 8036 8037 8038 8039 |
}else if( loc==0 ){
rc = sqlite3BtreeMovetoUnpacked(pCur, 0, pX->nKey, appendBias, &loc);
if( rc ) return rc;
}
}else if( loc==0 ){
if( pX->nMem ){
UnpackedRecord r;
r.pKeyInfo = pCur->pKeyInfo;
r.aMem = pX->aMem;
r.nField = pX->nMem;
r.default_rc = 0;
r.errCode = 0;
r.r1 = 0;
r.r2 = 0;
r.eqSeen = 0;
rc = sqlite3BtreeMovetoUnpacked(pCur, &r, 0, appendBias, &loc);
}else{
rc = btreeMoveto(pCur, pX->pKey, pX->nKey, appendBias, &loc);
}
if( rc ) return rc;
}
assert( pCur->eState==CURSOR_VALID || (pCur->eState==CURSOR_INVALID && loc) );
|