database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-08 14:02:16 +03:00
Code Activity

Fix the xBestIndex method of the pragma virtual table so that it correctly

Browse Source 
gives a higher cost to plans where the schema hidden parameter is
unconstrained.  Fix for the problem reported by
[forum:/forumpost/85b6a8b6705fb77a|forum post 85b6a8b6705fb77a].

FossilOrigin-Name: bc516ff5202ee6e9834266bf755fe26e30ac557dcc7975ca7a06dfe33874fcd2
This commit is contained in:
drh
2024-03-24 21:10:45 +00:00
parent 4a402b80c5
commit cf84ae0189
4 changed files with 25 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/pragma.c
View File

@@ -2885,7 +2885,11 @@ static int pragmaVtabBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
j = seen[0]-1;
pIdxInfo->aConstraintUsage[j].argvIndex = 1;
pIdxInfo->aConstraintUsage[j].omit = 1;
if( seen[1]==0 ) return SQLITE_OK;
if( seen[1]==0 ){
pIdxInfo->estimatedCost = (double)1000;
pIdxInfo->estimatedRows = 1000;
return SQLITE_OK;
}
pIdxInfo->estimatedCost = (double)20;
pIdxInfo->estimatedRows = 20;
j = seen[1]-1;