diff --git a/dbcon/joblist/groupconcat.cpp b/dbcon/joblist/groupconcat.cpp
index 9a508794f..c1d33aae2 100644
--- a/dbcon/joblist/groupconcat.cpp
+++ b/dbcon/joblist/groupconcat.cpp
@@ -22,7 +22,7 @@
 #include <iostream>
 // #define NDEBUG
 #include <cassert>
-#include <ranges>
+
 #include <string>
 #include "windowfunction/idborderby.h"
 using namespace std;
@@ -467,9 +467,9 @@ void GroupConcator::initialize(const rowgroup::SP_GroupConcat& gcc)
   fRm = gcc->fRm;
   fSessionMemLimit = gcc->fSessionMemLimit;
 
-  for (const auto& str : views::keys(gcc->fConstCols))
+  for (const auto& str : gcc->fConstCols)
   {
-    fConstantLen += str.length();
+    fConstantLen += str.first.length();
   }
 }
 
@@ -714,7 +714,8 @@ void GroupConcator::outputRow(std::ostringstream& oss, const rowgroup::Row& row)
 
 bool GroupConcator::concatColIsNull(const rowgroup::Row& row)
 {
-  return ranges::any_of(fConcatColumns, [&](uint32_t idx) { return row.isNullValue(idx); });
+  return std::any_of(fConcatColumns.cbegin(), fConcatColumns.cend(),
+                     [&row](uint32_t idx) { return row.isNullValue(idx); });
 }
 
 int64_t GroupConcator::lengthEstimate(const rowgroup::Row& row)
@@ -987,6 +988,7 @@ void GroupConcatOrderBy::initialize(const rowgroup::SP_GroupConcat& gcc)
 
   fOrderByCond.resize(0);
 
+  fOrderByCond.reserve(gcc->fOrderCond.size());
   for (const auto& [idx, asc] : gcc->fOrderCond)
   {
     fOrderByCond.emplace_back(idx, asc);
@@ -994,9 +996,10 @@ void GroupConcatOrderBy::initialize(const rowgroup::SP_GroupConcat& gcc)
 
   fDistinct = gcc->fDistinct;
 
-  for (uint32_t x : views::values(gcc->fGroupCols))
+  fConcatColumns.reserve(fConcatColumns.size() + gcc->fGroupCols.size());
+  for (auto& x : gcc->fGroupCols)
   {
-    fConcatColumns.emplace_back(x);
+    fConcatColumns.emplace_back(x.second);
   }
 
   auto size = fRowGroup.getSizeWithStrings(fRowsPerRG);
@@ -1048,9 +1051,10 @@ void GroupConcatOrderBy::serialize(messageqcpp::ByteStream& bs) const
   {
     sz = fDistinctMap->size();
     bs << sz;
-    for (const auto& idx : views::values(*fDistinctMap))
+
+    for (const auto& idx : *fDistinctMap)
     {
-      bs << idx;
+      bs << idx.second;
     }
   }
   sz = fOrderByQueue->size();
@@ -1435,9 +1439,11 @@ void GroupConcatNoOrder::initialize(const rowgroup::SP_GroupConcat& gcc)
   fRowGroup.setUseOnlyLongString(true);
   fRowsPerRG = 128;
 
-  for (uint32_t colIdx : views::values(gcc->fGroupCols))
+  fConcatColumns.reserve(fConcatColumns.size() + gcc->fGroupCols.size());
+
+  for (auto& colIdx : gcc->fGroupCols)
   {
-    fConcatColumns.push_back(colIdx);
+    fConcatColumns.push_back(colIdx.second);
   }
 
   createNewRGData();
diff --git a/utils/rowgroup/rowgroup.cpp b/utils/rowgroup/rowgroup.cpp
index dc5e5790b..0b620db45 100644
--- a/utils/rowgroup/rowgroup.cpp
+++ b/utils/rowgroup/rowgroup.cpp
@@ -428,7 +428,7 @@ RGData::RGData(const RowGroup& rg, allocators::CountingAllocator<RGDataBufType>&
   if (rg.usesStringTable())
   {
     allocators::CountingAllocator<StringStoreBufType> ssAlloc = _alloc;
-    strings.reset(new StringStore(ssAlloc)); 
+    strings.reset(new StringStore(ssAlloc));
     strings->useOnlyLongStrings(rg.usesOnlyLongString());
   }
 
@@ -455,12 +455,12 @@ void RGData::reinit(const RowGroup& rg, uint32_t rowCount)
     if (alloc)
     {
       allocators::CountingAllocator<StringStoreBufType> ssAlloc = alloc.value();
-      strings.reset(new StringStore(ssAlloc)); 
+      strings.reset(new StringStore(ssAlloc));
       strings->useOnlyLongStrings(rg.usesOnlyLongString());
     }
     else
     {
-      strings.reset(new StringStore()); 
+      strings.reset(new StringStore());
     }
   }
   else
@@ -1368,7 +1368,7 @@ void RowGroup::deserialize(ByteStream& bs)
   charsets.insert(charsets.begin(), charsetNumbers.size(), nullptr);
 }
 
-void RowGroup::setUseAggregateDataStore(bool b, std::span<boost::shared_ptr<GroupConcat>> group_concats)
+void RowGroup::setUseAggregateDataStore(bool b, boost::span<boost::shared_ptr<GroupConcat>> group_concats)
 {
   idbassert(!b || !group_concats.empty());
   if (useAggregateDataStore && !b)
diff --git a/utils/rowgroup/rowgroup.h b/utils/rowgroup/rowgroup.h
index b726c0550..8ee18060e 100644
--- a/utils/rowgroup/rowgroup.h
+++ b/utils/rowgroup/rowgroup.h
@@ -27,12 +27,13 @@
 
 #pragma once
 
-#include <span>
 #include <vector>
 #include <string>
 #include <stdexcept>
 // #define NDEBUG
 #include <cassert>
+
+#include <boost/core/span.hpp>
 #include <boost/shared_ptr.hpp>
 
 #include <boost/thread/mutex.hpp>
@@ -1103,7 +1104,7 @@ inline void Row::setStringField(const utils::ConstString& str, uint32_t colIndex
   }
   else
   {
-    // std::cout << "setStringField memcpy " << std::endl; 
+    // std::cout << "setStringField memcpy " << std::endl;
     uint8_t* buf = &data[offsets[colIndex]];
     memset(buf + length, 0,
            offsets[colIndex + 1] - (offsets[colIndex] + length));  // needed for memcmp in equals().
@@ -1640,7 +1641,7 @@ class RowGroup : public messageqcpp::Serializeable
   {
     return useOnlyLongStrings;
   }
-  void setUseAggregateDataStore(bool b, std::span<boost::shared_ptr<GroupConcat>> group_concats = {});
+  void setUseAggregateDataStore(bool b, boost::span<boost::shared_ptr<GroupConcat>> group_concats = {});
   bool usesAggregateDataStore() const
   {
     return useAggregateDataStore;
@@ -2314,7 +2315,7 @@ inline void RGData::getRow(uint32_t num, Row* row)
 {
   uint32_t incomingRowSize = row->getSize();
   idbassert(columnCount == row->getColumnCount() && rowSize == incomingRowSize);
-  
+
   row->setData(
       Row::Pointer(&rowData[RowGroup::getHeaderSize() + (num * incomingRowSize)], strings.get(),
                       userDataStore.get(), aggregateDataStore.get()));