[ https://issues.apache.org/jira/browse/CARBONDATA-2428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jacky Li resolved CARBONDATA-2428. ---------------------------------- Resolution: Fixed Fix Version/s: 1.4.1 1.5.0 > Support Flat folder structure in carbon. > ---------------------------------------- > > Key: CARBONDATA-2428 > URL: https://issues.apache.org/jira/browse/CARBONDATA-2428 > Project: CarbonData > Issue Type: Improvement > Reporter: Ravindra Pesala > Priority: Major > Fix For: 1.5.0, 1.4.1 > > Time Spent: 11h > Remaining Estimate: 0h > > 1. Flat folder makes all carbondata files store flat under table path. > 2. It is controlled through table property `flat_folder`. By default it is > false. > 3. It cannot be hybrid, so user cannot change the property once table created. > 4. Segment file is created for each loading.And segment file is created under > MetaData folder under table path. > 5. Segment number is added as part of carbondata and index files. > 6. All datamap files now create directly under table path with > <tablepath>/<dmname>/<segment_number>/<task_name>/dm > > IUD : It supports but list files during IUD may hit performance. > Compaction: Supports > Delete Segment : No impact > Clean files : No impact > Alter table : No impact > Pre Agg : Property need to inherited to child, so it also supports flat > folder structure. > Partition : No Impact on this feature as it already has flat folder structure. > Streaming : Only during handoff it supports flat folder structure. Streaming > segment location is no change. > -- This message was sent by Atlassian JIRA (v7.6.3#76005)