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https://issues.apache.org/jira/browse/ORC-346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16444485#comment-16444485
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rip.nsk edited comment on ORC-346 at 4/19/18 6:01 PM:
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TEST(Writer, writeTimestamp) failed with the following change:
+c++/test/TestWriter.cc:573
--- time_t currTime = std::time(nullptr);
+++ time_t currTime = -14210715; // 1969-07-20 12:34:45
was (Author: [email protected]):
TEST(Writer, writeTimestamp) failed with the following change:
diff --git a/c++/test/TestWriter.cc b/c++/test/TestWriter.cc
@@ -573,7 +573,7 @@ namespace orc {
- time_t currTime = std::time(nullptr);
+ time_t currTime = -14210715; // 1969-07-20 12:34:45
> Bug in TimestampColumnReader
> ----------------------------
>
> Key: ORC-346
> URL: https://issues.apache.org/jira/browse/ORC-346
> Project: ORC
> Issue Type: Bug
> Components: C++
> Reporter: rip.nsk
> Priority: Critical
>
> void TimestampColumnReader::next(ColumnVectorBatch& rowBatch, uint64_t
> numValues, char *notNull)
> has the following code:
> c++\src\ColumnReader.cc:338
> int64_t writerTime = secsBuffer[i] + epochOffset;
> secsBuffer[i] = writerTimezone.convertToUTC(writerTime);
> {color:#f79232}if (secsBuffer[i] < 0 && nanoBuffer[i] != 0) {{color}
> {color:#f79232} secsBuffer[i] -= 1;{color}
> {color:#f79232} }{color}
> {color:#333333}which likely leads to read wrong seconds value for PRE_1970
> dates{color}
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