201651     char *zDummy = 0;  local
201653         pTokenizer, 0, azCol, 0, nCol, nCol, zExpr, nExpr, &pExpr, &zDummy
201656     sqlite3_free(zDummy);
238112   const char *zDummy;             /* Unused */  local
238115   sqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
238237   const char *zDummy;  local
238239   sqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
238337   const char *zDummy;  local
238346   sqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
262446       const char *zDummy = 0;  local
262448       rc = fts5TextFromStmt(pConfig, pCsr->pStmt, iCol, &zDummy, &nDummy);