[IMPALA-7645] Allow configuring default file format via query option

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 3.2.0
• Component/s: Frontend
• Target Version: Product Backlog
• Epic Color: ghx-label-6
• Assignee: Fredy Wijaya
• Reporter: Tim Armstrong
• Created: 01/Oct/18 16:08
• Updated: 16/Sep/19 23:05
• Resolved: 27/Feb/19 14:13

Description

It would be useful to have a query option to allow setting the default file format. This would allow the file format to be overridden globally or per-session. We already have a COMPRESSION_CODEC option.

We had some discussion on IMPALA-2210 related to this.

The current default is hardcoded in the code: https://github.com/apache/impala/blob/64e6719870db5602a6fa85014bc6c264080b9414/fe/src/main/java/org/apache/impala/analysis/TableDef.java#L136 https://github.com/apache/impala/blob/64e6719870db5602a6fa85014bc6c264080b9414/fe/src/main/java/org/apache/impala/analysis/TableDef.java#L145

Issue Links

• is duplicated by: IMPALA-1504 Allow non-delimited-text default file formats
• is related to: IMPALA-1504 Allow non-delimited-text default file formats

Sub-Tasks

• Impala Doc: Document the query option for default file format: Closed