private static String[] ignoreCase(String[] queryFieldNames, String[] sinkFieldNames) {
        String[] newFieldNames = sinkFieldNames;
        for (int i = 0; i < newFieldNames.length; i++) {
            for (String queryFieldName : queryFieldNames) {
                if (newFieldNames[i].equalsIgnoreCase(queryFieldName)) {
                    newFieldNames[i] = queryFieldName;
                    break;
                }
            }
        }
        return newFieldNames;
    }
@description: mapping by name when insert into sink table
@author: maqi
@create: 2019/08/15 11:09
core/src/main/java/com/dtstack/flink/sql/exec/FlinkSQLExec.java