[IMPALA-3016] Impala crash on avro table inserted by mismatched writer schema <-> file schema with codegen

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: Impala 2.3.0
• Fix Version/s: Impala 2.5.0
• Component/s: Backend
• Labels: codegen crash downgraded
• Target Version: Impala 2.6.0
• Assignee: Huaisi Xu
• Reporter: Huaisi Xu
• Created: 17/Feb/16 20:57
• Updated: 26/Feb/16 18:45
• Resolved: 26/Feb/16 18:43

Description

The avro file schema has one column, but the writer has more than one column. So it "writes" multiple "columns" into this single column.

Impala crashes when codegen is enabled.

will update more details and repro later.