Index: src/select.c ================================================================== --- src/select.c +++ src/select.c @@ -1698,18 +1698,18 @@ memset(&sNC, 0, sizeof(sNC)); sNC.pSrcList = pSelect->pSrc; a = pSelect->pEList->a; for(i=0, pCol=pTab->aCol; inCol; i++, pCol++){ p = a[i].pExpr; - if( pCol->zType ) break; - if( pCol->zColl ) break; - pCol->zType = sqlite3DbStrDup(db, columnType(&sNC, p,0,0,0, &pCol->szEst)); + if( pCol->zType==0 ){ + pCol->zType = sqlite3DbStrDup(db, columnType(&sNC, p,0,0,0, &pCol->szEst)); + } szAll += pCol->szEst; pCol->affinity = sqlite3ExprAffinity(p); if( pCol->affinity==0 ) pCol->affinity = SQLITE_AFF_NONE; pColl = sqlite3ExprCollSeq(pParse, p); - if( pColl ){ + if( pColl && pCol->zColl==0 ){ pCol->zColl = sqlite3DbStrDup(db, pColl->zName); } } pTab->szTabRow = sqlite3LogEst(szAll*4); }