[SPARK-3609] Add sizeInBytes statistics to Limit operator

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.2.0
• Component/s: SQL
• Target Version/s: 1.1.1
• Assignee: Cheng Lian
• Reporter: Cheng Lian
• Created: 19/Sep/14 22:51
• Updated: 20/Sep/14 23:31
• Resolved: 20/Sep/14 23:31

Description

The sizeInBytes statistics of a LIMIT operator can be estimated fairly precisely when all output attributes are of native data types, all native data types except StringType have fixed size. For StringType, we can use a relatively large (say 4K) default size.

Issue Links

• links to: [Github] Pull Request #2468 (liancheng)