[IMPALA-11876] Support 'fixed' data type in AVRO

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Backend
• Labels: avro impala-iceberg
• Epic Color: ghx-label-13
• Assignee: Unassigned
• Reporter: Noemi Pap-Takacs
• Created: 30/Jan/23 11:02
• Updated: 23/Feb/24 13:04

Description

Impala supports 'decimal' type in AVRO. 'Decimal' is a logical type, that can annotate either 'bytes' or 'fixed' type underneath. Impala can read 'bytes' but not 'fixed'.
Iceberg writes 'decimal' type with underlying 'fixed' type. This means that Impala is currently unable to support 'decimal' in AVRO tables written by Iceberg. In order to fully support all implementations of 'decimal', 'fixed' type must be supported.

Sub-Tasks

• Bump AVRO version: Resolved
• Update CMake Avro module with C++ lib: Resolved
• Use C++ Avro implementation instead of C: Open