[AVRO-1797] Schema parser should not ignore null character in default value for bytes

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 1.7.4
• Component/s: c

Environment

Hive, Impala

• Assignee: Unassigned
• Reporter: Huaisi Xu
• Created: 08/Feb/16 18:28
• Updated: 11/Feb/16 22:13

Description

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.