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Merge in performance enhancements from trunk.

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FossilOrigin-Name: fc9ae839569eb28eb734c52d95676c59b2e27494
This commit is contained in:
drh
2013-11-26 18:00:29 +00:00
parent 212c6be141 55fcab39be
commit 1b2ee4fe1a
54 changed files with 2328 additions and 1015 deletions
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8
src/vdbeblob.c
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@@ -66,7 +66,8 @@ static int blobSeekToRow(Incrblob *p, sqlite3_int64 iRow, char **pzErr){
rc = sqlite3_step(p->pStmt);
if( rc==SQLITE_ROW ){
u32 type = v->apCsr[0]->aType[p->iCol];
VdbeCursor *pC = v->apCsr[0];
u32 type = pC->aType[p->iCol];
if( type<12 ){
zErr = sqlite3MPrintf(p->db, "cannot open value of type %s",
type==0?"null": type==7?"real": "integer"
@@ -75,9 +76,9 @@ static int blobSeekToRow(Incrblob *p, sqlite3_int64 iRow, char **pzErr){
sqlite3_finalize(p->pStmt);
p->pStmt = 0;
}else{
p->iOffset = v->apCsr[0]->aOffset[p->iCol];
p->iOffset = pC->aType[p->iCol + pC->nField];
p->nByte = sqlite3VdbeSerialTypeLen(type);
p->pCsr = v->apCsr[0]->pCursor;
p->pCsr = pC->pCursor;
sqlite3BtreeEnterCursor(p->pCsr);
sqlite3BtreeCacheOverflow(p->pCsr);
sqlite3BtreeLeaveCursor(p->pCsr);
@@ -332,6 +333,7 @@ blob_open_out:
}
sqlite3Error(db, rc, (zErr ? "%s" : 0), zErr);
sqlite3DbFree(db, zErr);
sqlite3ParserReset(pParse);
sqlite3StackFree(db, pParse);
rc = sqlite3ApiExit(db, rc);
sqlite3_mutex_leave(db->mutex);