[HIVE-6727] Table level stats for external tables are set incorrectly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0, 0.13.1, 0.14.0, 1.0.0, 1.1.0, 1.2.0
• Fix Version/s: 1.3.0, 2.0.0
• Component/s: Statistics
• Assignee: Bing Li
• Reporter: Harish Butani
• Created: 21/Mar/14 23:08
• Updated: 16/Feb/16 23:51
• Resolved: 01/Jun/15 20:18

Description

if you do the following:

CREATE EXTERNAL TABLE anaylyze_external (a INT) LOCATION 'data/files/ext_test';
describe formatted anaylyze_external;

The table level stats are:

Table Parameters:
	COLUMN_STATS_ACCURATE	true
	EXTERNAL            	TRUE
	numFiles            	0
	numRows             	6
	rawDataSize         	6
	totalSize           	0

numFiles and totalSize is always 0.
Issue is:
MetaStoreUtils:updateUnpartitionedTableStatsFast attempts to set table level stats from FileStatus. But it doesn't account for External tables, it always calls Warehouse.getFileStatusesForUnpartitionedTable