database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-11 01:42:22 +03:00
Code Activity

Transfer large index or WITHOUT ROWID records between b-trees when vacuuming without loading them into memory.

Browse Source 
FossilOrigin-Name: dfd4ca6891a893d0e9551689954d3e79114d5565f8a5264f96ad1d64fe1d6280
This commit is contained in:
dan
2020-12-09 20:33:51 +00:00
parent ebbf36878c
commit cd1b2d0b54
6 changed files with 35 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/insert.c
View File

@@ -2851,13 +2851,16 @@ static int xferOptimization(
if( i==pSrcIdx->nColumn ){
idxInsFlags = OPFLAG_USESEEKRESULT;
sqlite3VdbeAddOp1(v, OP_SeekEnd, iDest);
sqlite3VdbeAddOp3(v, OP_Transfer, iDest, iSrc, 0);
}
}else if( !HasRowid(pSrc) && pDestIdx->idxType==SQLITE_IDXTYPE_PRIMARYKEY ){
idxInsFlags |= OPFLAG_NCHANGE;
}
sqlite3VdbeAddOp3(v, OP_RowData, iSrc, regData, 1);
sqlite3VdbeAddOp2(v, OP_IdxInsert, iDest, regData);
sqlite3VdbeChangeP5(v, idxInsFlags|OPFLAG_APPEND);
if( idxInsFlags!=OPFLAG_USESEEKRESULT ){
sqlite3VdbeAddOp3(v, OP_RowData, iSrc, regData, 1);
sqlite3VdbeAddOp2(v, OP_IdxInsert, iDest, regData);
sqlite3VdbeChangeP5(v, idxInsFlags|OPFLAG_APPEND);
}
sqlite3VdbeAddOp2(v, OP_Next, iSrc, addr1+1); VdbeCoverage(v);
sqlite3VdbeJumpHere(v, addr1);
sqlite3VdbeAddOp2(v, OP_Close, iSrc, 0);