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https://issues.apache.org/jira/browse/ASTERIXDB-3003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17498264#comment-17498264
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ASF subversion and git services commented on ASTERIXDB-3003:
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Commit c1c5bec0dd3cc5de8e1713f23dece7936d309ba1 in asterixdb's branch
refs/heads/master from Wail Alkowaileet
[ https://gitbox.apache.org/repos/asf?p=asterixdb.git;h=c1c5bec ]
[ASTERIXDB-3003][STO] Enable batch point lookups and stateful cursors
- user model changes: yes
- storage format changes: no
- interface changes: yes
Details:
- Allow the user to enable stateful and batch point lookups
- A compiler flag 'compiler.batch.lookup' can be set to enable
batch and stateful point-lookups
- The stateful cursors are used to search for subsequent points
without the need for searching the BTree's interior nodes for
each point lookup
- The cursor is kept open, and the page is pinned until:
- the page is consumed (i.e., no more points can be found in the page)
- or the cursor is closed
- Introduce IDiskBTreeStatefulPointSearchCursor interface for different
DiskBTree implementations
Change-Id: I76107f4eb6de620399e2a1142684a7b8dad4e0a1
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/14804
Integration-Tests: Jenkins <[email protected]>
Tested-by: Jenkins <[email protected]>
Reviewed-by: Wail Alkowaileet <[email protected]>
Reviewed-by: Murtadha Hubail <[email protected]>
> Preparation for Columnar format
> -------------------------------
>
> Key: ASTERIXDB-3003
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-3003
> Project: Apache AsterixDB
> Issue Type: Improvement
> Components: STO - Storage
> Affects Versions: 0.9.8
> Reporter: Wail Y. Alkowaileet
> Assignee: Wail Y. Alkowaileet
> Priority: Major
> Fix For: 0.9.8
>
>
> This issue is for tracking changes that are needed before introducing the
> columnar format. It will be updated as changes are rolled out.
> Current changes:
> * Extract BTreeNSMBulkLoader and AbstractTreeIndexBulkLoader
> * Make LSMBTree extendable by introducing
> ** createCursor()
> ** getMergeComponentFactory()
> ** getCursorFactory()
> * Enable stateful and batch point-lookups
> ** Enable stateful and batch point-lookups by default
> ** Introduce a flag to enable/disable it:
> {code:java}
> compiler.batched.lookup{code}
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