[HIVE-14169] Honor --incremental flag only if TableOutputFormat is used

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: Beeline
• Assignee: Sahil Takiar
• Reporter: Sahil Takiar
• Created: 06/Jul/16 18:23
• Updated: 19/Jul/16 21:47
• Resolved: 19/Jul/16 21:47

Description

• When Beeline prints out a ResultSet to stdout it uses the BeeLine.print method
• This method takes the ResultSet from the completed query and uses a specified OutputFormat to print the rows (by default it uses TableOutputFormat)
• The print method also wraps the ResultSet into a Rows class (either a IncrementalRows or a BufferedRows class)

The advantage of BufferedRows is that it can do a global calculation of the column width, however, this is only useful for TableOutputFormat. So there is no need to buffer all the rows if a different OutputFormat is used. This JIRA will change the behavior of the --incremental flag so that it is only honored if TableOutputFormat is used.