[
https://issues.apache.org/jira/browse/IOTDB-433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17020238#comment-17020238
]
Jialin Qiao commented on IOTDB-433:
-----------------------------------
[https://github.com/apache/incubator-iotdb/pull/753]
> Add iterators to TVList to prevent data copy
> --------------------------------------------
>
> Key: IOTDB-433
> URL: https://issues.apache.org/jira/browse/IOTDB-433
> Project: Apache IoTDB
> Issue Type: Improvement
> Reporter: atoildw
> Assignee: atoildw
> Priority: Major
> Fix For: 0.10.0-SNAPSHOT
>
>
> In the previous design, when you used in-memory data:
> # the {{TVList}} structure was {{clone}} into an {{IWritableMemChunk}} named
> {{chunkCopy}}
> # And then copied again into a {{List<TimeValuePair>}} structure
> # If multiple data happens to exist in {{flushingMemTable}},
> {{MemSeriesLazyMerger}} will use {{addAll(List<TimeValuePair>)}} to copy again
> so, I think we should directly use {{TVList}} to implement {{IPointReader}}
> interface and use it externally
> Add the {{Iterator}} class and {{getIterator}} method for {{TVlist}}
> and then ,data was copied only when it is used
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
