src/main/java/com/aliyun/odps/jdbc/OdpsAsyncStatement.java [30:57]:
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  public synchronized boolean execute(String query) throws SQLException {
    // short cut for SET clause
    Properties properties = new Properties();
    if (!connHandle.isSkipSqlCheck()) {
      SettingParser.ParseResult parseResult = SettingParser.parse(query);
      query = parseResult.getRemainingQuery();
      properties.putAll(parseResult.getSettings());
    }
    if (StringUtils.isBlank(query)) {
      // only settings, just set properties
      processSetClause(properties);
      return false;
    } else {
      try {
        processSetClauseExtra(properties);
      } catch (OdpsException e) {
        throw new SQLException(e.getMessage(), e);
      }
    }
    // otherwise those properties is just for this query
    if (processUseClause(query)) {
      return false;
    }
    checkClosed();
    beforeExecute();
    runSQL(query, properties);
    return hasResultSet();
  }
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src/main/java/com/aliyun/odps/jdbc/OdpsStatement.java [296:328]:
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  public boolean execute(String query) throws SQLException {
    // short cut for SET clause
    Properties properties = new Properties();

    if (!connHandle.isSkipSqlCheck()) {
      SettingParser.ParseResult parseResult = SettingParser.parse(query);
      query = parseResult.getRemainingQuery();
      properties.putAll(parseResult.getSettings());
    }

    if (StringUtils.isBlank(query)) {
      // only settings, just set properties
      processSetClause(properties);
      return false;
    } else {
      try {
        processSetClauseExtra(properties);
      } catch (OdpsException e) {
        throw new SQLException(e.getMessage(), e);
      }
    }
    // otherwise those properties is just for this query

    if (processUseClause(query)) {
      return false;
    }

    checkClosed();
    beforeExecute();
    runSQL(query, properties);

    return hasResultSet();
  }
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src/main/java/com/aliyun/odps/jdbc/OdpsAsyncPreparedStatement.java [31:58]:
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  public synchronized boolean execute(String query) throws SQLException {
    // short cut for SET clause
    Properties properties = new Properties();
    if (!connHandle.isSkipSqlCheck()) {
      SettingParser.ParseResult parseResult = SettingParser.parse(query);
      query = parseResult.getRemainingQuery();
      properties.putAll(parseResult.getSettings());
    }
    if (StringUtils.isBlank(query)) {
      // only settings, just set properties
      processSetClause(properties);
      return false;
    } else {
      try {
        processSetClauseExtra(properties);
      } catch (OdpsException e) {
        throw new SQLException(e.getMessage(), e);
      }
    }
    // otherwise those properties is just for this query
    if (processUseClause(query)) {
      return false;
    }
    checkClosed();
    beforeExecute();
    runSQL(query, properties);
    return hasResultSet();
  }
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