database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-16 23:02:26 +03:00
Code Activity

Enable bloom filters for the right table of a LEFT JOIN. Fix unreachable

Browse Source 
branches.

FossilOrigin-Name: d342ab722de1fc3f34219c9755253db9d88eb50a6fa5cc257207008b00e7fc03
This commit is contained in:
drh
2021-12-09 18:44:03 +00:00
parent 5d88be8f48
commit a11c5e22b5
5 changed files with 42 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/where.c
View File

@@ -5000,15 +5000,15 @@ static SQLITE_NOINLINE void whereCheckIfBloomFilterIsUseful(
WhereLoop *pLoop = pWInfo->a[i].pWLoop;
const int reqFlags = (WHERE_SELFCULL|WHERE_COLUMN_EQ);
if( (pLoop->wsFlags & reqFlags)==reqFlags
&& (pLoop->wsFlags & (WHERE_IPK|WHERE_INDEXED))!=0
&& ALWAYS((pLoop->wsFlags & (WHERE_IPK|WHERE_INDEXED))!=0)
){
SrcItem *pItem = &pWInfo->pTabList->a[pLoop->iTab];
Table *pTab = pItem->pTab;
pTab->tabFlags |= TF_StatsUsed;
if( nSearch > pTab->nRowLogEst
&& (pItem->fg.jointype & JT_LEFT)==0
&& (pTab->tabFlags & TF_HasStat1)!=0
){
testcase( pItem->fg.jointype & JT_LEFT );
pLoop->wsFlags |= WHERE_BLOOMFILTER;
pLoop->wsFlags &= ~WHERE_IDX_ONLY;
WHERETRACE(0xffff, (