319   char *zCol;               /* Null-terminated column definition */  in sqlite3AlterFinishAddColumn()  local
407   zCol = sqlite3DbStrNDup(db, (char*)pColDef->z, pColDef->n);  in sqlite3AlterFinishAddColumn()
408   if( zCol ){  in sqlite3AlterFinishAddColumn()
409     char *zEnd = &zCol[pColDef->n-1];  in sqlite3AlterFinishAddColumn()
410     while( zEnd>zCol && (*zEnd==';' || sqlite3Isspace(*zEnd)) ){  in sqlite3AlterFinishAddColumn()
422       zDb, pNew->u.tab.addColOffset, zCol, pNew->u.tab.addColOffset,  in sqlite3AlterFinishAddColumn()
425     sqlite3DbFree(db, zCol);  in sqlite3AlterFinishAddColumn()
1563            && 0==sqlite3_stricmp(pFKey->aCol[i].zCol, zOld)  in renameColumnFunc()
1565             renameTokenFind(&sParse, &sCtx, (void*)pFKey->aCol[i].zCol);  in renameColumnFunc()
2130   char *zCol = 0;                 /* Name of column to drop */  in sqlite3AlterDropColumn()  local
2146   zCol = sqlite3NameFromToken(db, pName);  in sqlite3AlterDropColumn()
2147   if( zCol==0 ){  in sqlite3AlterDropColumn()
2151   iCol = sqlite3ColumnIndex(pTab, zCol);  in sqlite3AlterDropColumn()
2162         zCol  in sqlite3AlterDropColumn()
2169     sqlite3ErrorMsg(pParse, "cannot drop column \"%s\": no other columns exist",zCol);  in sqlite3AlterDropColumn()
2179   if( sqlite3AuthCheck(pParse, SQLITE_ALTER_TABLE, zDb, pTab->zName, zCol) ){  in sqlite3AlterDropColumn()
2260   sqlite3DbFree(db, zCol);  in sqlite3AlterDropColumn()