[jira] [Created] (AVRO-1797) Schema parser should not expect ctrl-char (ASCII: 0-31) to be escaped in default value for bytes

["Huaisi Xu (JIRA)" <ji...@apache.org>]

Huaisi Xu created AVRO-1797:
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             Summary: Schema parser should not expect ctrl-char (ASCII: 0-31) to be escaped in default value for bytes
                 Key: AVRO-1797
                 URL: https://issues.apache.org/jira/browse/AVRO-1797
             Project: Avro
          Issue Type: Bug
          Components: java
    Affects Versions: 1.7.4
         Environment: Hive, Impala
            Reporter: Huaisi Xu
            Priority: Critical


In https://avro.apache.org/docs/1.7.7/spec.html#schema_complex, "Default values for bytes and fixed fields are JSON strings, where Unicode code points 0-255 are mapped to unsigned 8-bit byte values 0-255.". The example provided is:  bytes || string || "\u00FF".

However, if I try to create a table schema with default bytes value for a decimal field to be i.e. "\u0031", I will have "Illegal unquoted character ((CTRL-CHAR, code 31)): has to be escaped using backslash to be included in string value.". Anything less than 32 fails.



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