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https://issues.apache.org/jira/browse/PARQUET-2064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17396551#comment-17396551
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ASF GitHub Bot commented on PARQUET-2064:
-----------------------------------------
gszadovszky commented on a change in pull request #921:
URL: https://github.com/apache/parquet-mr/pull/921#discussion_r685822532
##########
File path:
parquet-column/src/main/java/org/apache/parquet/internal/filter2/columnindex/RowRanges.java
##########
@@ -299,6 +300,10 @@ public boolean isOverlapping(long from, long to) {
(r1, r2) -> r1.isBefore(r2) ? -1 : r1.isAfter(r2) ? 1 : 0) >= 0;
}
+ public List<Range> getRanges() {
+ return ranges;
Review comment:
I don't like returning `ranges` directly. This is a mutable list so the
caller can modify it without any control. I would suggest wrapping it into an
unmodifiable list.
##########
File path:
parquet-column/src/main/java/org/apache/parquet/internal/filter2/columnindex/RowRanges.java
##########
@@ -63,8 +64,8 @@ private static Range intersection(Range left, Range right) {
return null;
}
- final long from;
- final long to;
+ public final long from;
+ public long to;
Review comment:
`to` should also be final.
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> Make Range public accessible in RowRanges
> -----------------------------------------
>
> Key: PARQUET-2064
> URL: https://issues.apache.org/jira/browse/PARQUET-2064
> Project: Parquet
> Issue Type: New Feature
> Reporter: Xinli Shang
> Assignee: Xinli Shang
> Priority: Major
>
> When rolling out to Presto, I found we need to know the boundaries of each
> Range in RowRanges. It is still doable with Iterator but Presto has. batch
> reader, we cannot use iterator for each row.
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