feat(commit): align functionality with java paimon commit

src/paimon/CMakeLists.txt

@@ -288,6 +288,9 @@ set(PAIMON_CORE_SRCS
     core/operation/abstract_split_read.cpp
     core/operation/append_only_file_store_scan.cpp
     core/operation/append_only_file_store_write.cpp
+    core/operation/commit/conflict_detection.cpp
+    core/operation/commit/row_id_column_conflict_checker.cpp
+    core/operation/commit/manifest_entry_changes.cpp
     core/operation/commit_context.cpp
     core/operation/expire_snapshots.cpp
     core/operation/file_store_commit.cpp
@@ -697,6 +700,8 @@ if(PAIMON_BUILD_TESTS)
                     core/operation/metrics/compaction_metrics_test.cpp
                     core/operation/data_evolution_file_store_scan_test.cpp
                     core/operation/data_evolution_split_read_test.cpp
+                    core/operation/commit/conflict_detection_test.cpp
+                    core/operation/commit/manifest_entry_changes_test.cpp
                     core/operation/key_value_file_store_write_test.cpp
                     core/operation/internal_read_context_test.cpp
                     core/operation/abstract_split_read_test.cpp

src/paimon/common/data/binary_row.h

@@ -156,6 +156,19 @@ struct hash<std::tuple<paimon::BinaryRow, int32_t, std::string>> {
     }
 };
 
+/// for std::unordered_map<std::tuple<paimon::BinaryRow, int32_t, int32_t>, ...>
+template <>
+struct hash<std::tuple<paimon::BinaryRow, int32_t, int32_t>> {
+    size_t operator()(
+        const std::tuple<paimon::BinaryRow, int32_t, int32_t>& partition_bucket_level) const {
+        const auto& [partition, bucket, level] = partition_bucket_level;
+        size_t hash = paimon::MurmurHashUtils::HashUnsafeBytes(
+            reinterpret_cast<const void*>(&bucket), 0, sizeof(bucket), partition.HashCode());
+        return paimon::MurmurHashUtils::HashUnsafeBytes(reinterpret_cast<const void*>(&level), 0,
+                                                        sizeof(level), hash);
+    }
+};
+
 template <>
 struct hash<paimon::BinaryRow> {
     size_t operator()(const paimon::BinaryRow& row) const {