database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-01 06:27:03 +03:00
Code Activity

Optimize queries against fts5vocab(row) tables that do use the "cnt" column.

Browse Source 
FossilOrigin-Name: 96a591c202cb4218999ece3de063bf466b6fd81bd23383893f3913ecb52dda36
This commit is contained in:
dan
2024-05-14 19:41:19 +00:00
parent 433af7ab93
commit a0693f21fc
3 changed files with 17 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
ext/fts5/fts5_vocab.c
View File

@ -533,8 +533,16 @@ static int fts5VocabNextMethod(sqlite3_vtab_cursor *pCursor){
/* Do not bother counting the number of instances if the "cnt"
** column is not being read (according to colUsed). */
if( eDetail==FTS5_DETAIL_FULL && (pCsr->colUsed & 0x04) ){
while( 0==sqlite3Fts5PoslistNext64(pPos, nPos, &iOff, &iPos) ){
pCsr->aCnt[0]++;
while( iPos<nPos ){
u32 ii;
fts5FastGetVarint32(pPos, iPos, ii);
if( ii==1 ){
/* New column in the position list */
fts5FastGetVarint32(pPos, iPos, ii);
}else{
/* An instance - increment pCsr->aCnt[] */
pCsr->aCnt[0]++;
}
}
}
pCsr->aDoc[0]++;