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https://issues.apache.org/jira/browse/HUDI-1462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17260218#comment-17260218
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qian heng edited comment on HUDI-1462 at 1/7/21, 4:21 AM:
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[~danny0405] It means Near-Realtime (RT) table. I've corrected it.
was (Author: qian heng):
[~danny0405] I means Near-Realtime (RT) table.
> The rt view query returns a wrong result with predicate push down
> -----------------------------------------------------------------
>
> Key: HUDI-1462
> URL: https://issues.apache.org/jira/browse/HUDI-1462
> Project: Apache Hudi
> Issue Type: Bug
> Components: Common Core
> Affects Versions: 0.6.1
> Environment: hiveserver2
> Reporter: qian heng
> Priority: Major
>
> The rt view query returns a wrong result with predicate push down.
> This is my query on a Near-Realtime (RT) table：
> select count(1) from ***mor_rt where platform = "HYLOOP" and
> `_hoodie_commit_time`= '20201210213000';
> |_c0 |
> |0 |
> But it do have records whose `_hoodie_commit_time` equal '20201210213000',
> it can be proved by the result of query:
> select `_hoodie_commit_time`, count(1) from ***mor_rt where platform =
> "HYLOOP" group by `_hoodie_commit_time`;
> |_hoodie_commit_time|_c1 |
> ....
> |20201210213000 |16 |
> ....
> I think it may be a bug and is caused by the wrong code logic in
> HoodieCombineRealtimeRecordReader .
> {code:java}
> //代码占位符
> public boolean next(NullWritable key, ArrayWritable value) throws IOException
> {
> if (this.currentRecordReader.next(key, value)) {
> LOG.info("Reading from record reader");
> LOG.info(HoodieRealtimeRecordReaderUtils.arrayWritableToString(value));
> return true;
> } else if (recordReaders.size() > 0) {
> this.currentRecordReader.close();
> this.currentRecordReader = recordReaders.remove(0);
> return this.currentRecordReader.next(key, value); //TODO: bug? return
> this.next(key, value);
> } else {
> return false;
> }
> }
> {code}
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