1 files changed, 1 insertions, 0 deletions
diff --git a/src/where.c b/src/where.c
index ec2d3847b..dc2b463f2 100644
--- a/src/where.c
+++ b/src/where.c
@@ -5379,6 +5379,7 @@ void sqlite3WhereEnd(WhereInfo *pWInfo){
             x = pPk->aiColumn[x];
             assert( x>=0 );
           }else{
+            testcase( x!=sqlite3StorageColumnToTable(pTab,x) );
             x = sqlite3StorageColumnToTable(pTab,x);
           }
           x = sqlite3TableColumnToIndex(pIdx, x);