刘大伟 created IOTDB-326:
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Summary: We need a random skip reader
Key: IOTDB-326
URL: https://issues.apache.org/jira/browse/IOTDB-326
Project: Apache IoTDB
Issue Type: New Feature
Reporter: 刘大伟
On the current read method, the smallest read unit is page, which means that
after initializing a reader, I will read directly to the first available
pageheader, which is very time consuming when chunkmetadata or certain
aggregations are available.
Therefore, I think we should design a random read mode so that chunkmeta can
filter the chunks directly when using it, thus saving time.
Here's an example:
{code:java}
while(reader.hasNextChunkMeta()){
if(canUseChunkHeader()){
xxxxx
reader.skipChunk();
}else{
IChunkReader reader = reader.getChunkReader();
while(reader.hasNext()){
xxxx
}
}
}{code}
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