# GAUSS-05171 -- GAUSS-05180
GAUSS-05171: "Abnormal data package received, package length is %d, input buffer length is %d"
SQLSTATE：无
错误原因：接收到异常的数据包，数据包的长度为xx，接收buffer的长度为xx。
解决办法：请检查数据文件，确保数据文件没有问题。
GAUSS-05180: "encoding '%s' not supported by collation '%s'"
错误原因：排序规则不支持当前数据库的字符编码。
解决办法：查阅产品文档，选择支持当前字符编码的排序规则。
示例：
```
postgres=# CREATE DATABASE test_db ENCODING 'eucjis2004' LC_CTYPE='C' LC_COLLATE='C' template = template0;
CREATE DATABASE
postgres=# \c test_db
Non-SSL connection (SSL connection is recommended when requiring high-security)
You are now connected to database "test_db" as user "jack".
test_db=# select 'a' collate case_insensitive;
ERROR:  encoding "EUC_JIS_2004" not supported by collation "case_insensitive"
LINE 1: select 'a' collate case_insensitive;
                   ^
```