[DRILL-5719] Join query on a non existing column in a json file runs longer than usual

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.11.0
• Component/s: Storage - JSON
• Assignee: Unassigned
• Reporter: Prasad Nagaraj Subramanya
• Created: 13/Aug/17 17:20
• Updated: 14/Aug/17 16:56

Description

1) Join query on two json files
Column exists

select t.p_partkey, t1.ps_partkey from dfs.`testData/part.json` as t RIGHT JOIN dfs.`testData/partsupp.json` as t1 ON t.p_partkey = t1.ps_partkey;

Columns doesnt exist (The part_json file has no key by name partkey)

select t.partkey, t1.ps_partkey from dfs.`testData/part.json` as t RIGHT JOIN dfs.`testData/partsupp.json` as t1 ON t.partkey = t1.ps_partkey;

part.json & partsupp.json - tpch sf1 dataset

Time taken when-
1) column exists in the file - 20secs
2) column doesnt exist in the file - 15mins