Fix importing multiple converted csv columns KIKIMR-19751

1 files changed, 1 insertions, 1 deletions

diff --git a/ydb/core/formats/arrow/converter.cpp b/ydb/core/formats/arrow/converter.cpp
index 7b4d38ba962..d832275dcf5 100644
--- a/ydb/core/formats/arrow/converter.cpp
+++ b/ydb/core/formats/arrow/converter.cpp
@@ -275,7 +275,6 @@ bool TArrowToYdbConverter::Process(const arrow::RecordBatch& batch, TString& err
             }
 
             if (NeedDataConversion(colType)) {
-                memPool.Clear();
                 for (i32 i = 0; i < unroll; ++i) {
                     if (!ConvertData(cells[i][col], colType, memPool, errorMessage)) {
                         return false;
@@ -289,6 +288,7 @@ bool TArrowToYdbConverter::Process(const arrow::RecordBatch& batch, TString& err
         for (i32 i = 0; i < unroll; ++i) {
             RowWriter_.AddRow(cells[i]);
         }
+        memPool.Clear();
     }
     cells.resize(1);
 #else