From d315f1de62d174605d34caa0448d474a7a1d749d Mon Sep 17 00:00:00 2001 From: Mryange Date: Wed, 2 Jul 2025 12:55:22 +0800 Subject: [PATCH] upd --- be/src/vec/data_types/data_type_hll.cpp | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/be/src/vec/data_types/data_type_hll.cpp b/be/src/vec/data_types/data_type_hll.cpp index 2e383705221d0f..e543a42c697817 100644 --- a/be/src/vec/data_types/data_type_hll.cpp +++ b/be/src/vec/data_types/data_type_hll.cpp @@ -100,12 +100,15 @@ const char* DataTypeHLL::deserialize(const char* buf, MutableColumnPtr* column, auto& data_column = assert_cast(*origin_column); auto& data = data_column.get_data(); - + data.resize(real_have_saved_num); + if (real_have_saved_num == 0) { + // If real_have_saved_num is 0, we don't need to deserialize any data. + return buf; + } std::vector hll_size_array(real_have_saved_num); memcpy(hll_size_array.data(), buf, sizeof(size_t) * real_have_saved_num); buf += sizeof(size_t) * real_have_saved_num; - data.resize(real_have_saved_num); for (int i = 0; i < real_have_saved_num; ++i) { data[i].deserialize(Slice(buf, hll_size_array[i])); buf += hll_size_array[i];