[ https://issues.apache.org/jira/browse/HIVE-17627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nishant Bangarwa updated HIVE-17627: ------------------------------------ Attachment: HIVE-17627.1.patch > Use druid scan query instead of the select query. > ------------------------------------------------- > > Key: HIVE-17627 > URL: https://issues.apache.org/jira/browse/HIVE-17627 > Project: Hive > Issue Type: Bug > Components: Druid integration > Reporter: slim bouguerra > Assignee: Nishant Bangarwa > Priority: Major > Attachments: HIVE-17627.1.patch, HIVE-17627.patch > > > The biggest difference between select query and scan query is that, scan > query doesn't retain all rows in memory before rows can be returned to client. > It will cause memory pressure if too many rows required by select query. > Scan query doesn't have this issue. > Scan query can return all rows without issuing another pagination query, > which is extremely useful when query against historical or realtime node > directly. -- This message was sent by Atlassian JIRA (v7.6.3#76005)