[doris] branch master updated: [schema change](fix) fix coredump of schema change (#13183)

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jakevin pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
     new 7b2fdd26a1 [schema change](fix) fix coredump of schema change (#13183)
7b2fdd26a1 is described below

commit 7b2fdd26a19e90fb29cd02c56679dcf5a73ed2ed
Author: TengJianPing <18...@users.noreply.github.com>
AuthorDate: Sun Oct 9 19:44:00 2022 +0800

    [schema change](fix) fix coredump of schema change (#13183)
    
    When schema change and compaction is executing simutaneously, both
    nullable and not nullable data can be read for the same column, need to
    reset _nullmap for each Block when converting Block data, or else Column
    case will be wrong.
---
 be/src/vec/olap/olap_data_convertor.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/be/src/vec/olap/olap_data_convertor.cpp b/be/src/vec/olap/olap_data_convertor.cpp
index 58ab5d6579..33598c4e98 100644
--- a/be/src/vec/olap/olap_data_convertor.cpp
+++ b/be/src/vec/olap/olap_data_convertor.cpp
@@ -160,6 +160,7 @@ void OlapBlockDataConvertor::OlapColumnDataConvertorBase::set_source_column(
 void OlapBlockDataConvertor::OlapColumnDataConvertorBase::clear_source_column() {
     // just to reduce the source column's ref count to 1
     _typed_column.column = nullptr;
+    _nullmap = nullptr;
 }
 
 // This should be called only in SegmentWriter. If you want to access nullmap in Convertor,


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