Marton Bod created HIVE-22819:
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Summary: Refactor Hive::listFilesCreatedByQuery to make it faster
for object stores
Key: HIVE-22819
URL: https://issues.apache.org/jira/browse/HIVE-22819
Project: Hive
Issue Type: Improvement
Reporter: Marton Bod
Assignee: Marton Bod
{color:#0000ff}Hive::listFilesCreatedByQuery{color} does an exists(), an
isDir() and then a listing call. This can be expensive in object stores. We
should instead directly list the files in the directory (we'd have to handle an
exception if the directory does not exists, but issuing a single call to the
object store would most likely still end up being more performant).
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