jiaqizho commented on code in PR #1192:
URL: https://github.com/apache/cloudberry/pull/1192#discussion_r2272214667
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src/backend/gporca/libgpopt/src/operators/CPhysicalAgg.cpp:
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@@ -293,11 +292,65 @@ CDistributionSpec *
CPhysicalAgg::PdsMaximalHashed(CMemoryPool *mp, CColRefArray *colref_array)
{
GPOS_ASSERT(nullptr != colref_array);
+ CColRefArray *pcraResHashs = nullptr;
+
+ if (GPOS_FTRACE(EopttraceAggRRSFirstKey)) {
+ pcraResHashs = GPOS_NEW(mp) CColRefArray(mp);
+ if (colref_array->Size() > 0) {
Review Comment:
`colref_array->Size()` can be 0. I don't understand why we need to check if
colref_array->Size() LT 0 ？
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