[birt-dev] Checkin: Fix bug 149269 : Enhance SmartCache to support query

["Xiaofeng Zhang" <xiaofeng.zhang@xxxxxxxxxxx>]

- Summary:

Fix bug 149269

- Bugzilla Bug (s) Resolved:
Fix bug 149269  : Enhance SmartCache to support query execution with a small memory.

- Description:
With a small memory merge sort algorithm can't sort a large number of rows using one merge. Multi-level merge must be excuted to finish such a sort. Multi-level control is added to the merge sort algorithm of SmartCache to support sorting a large number of rows with small memory.

- Tests Description:
Junit Test / Manual Test

 

- Notes to Build Team:
N/A

- Notes to Developers:
N/A

- Notes to QA:  

N/A

 

- Notes to Documentation:  
N/A

 

- Files Edited:

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/DiskCacheResultSet.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/DiskDataExport.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/DiskDirectExport.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/DiskSortExport.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/MergeSortImpl.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/MergeSortUtil.java

- Files Added:

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/DiskSortExport2.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/IRowIterator.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/MergeTempFileUtil.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/RowFile.java

/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/cache/disk/MergeSortRowFiles.java