Add fetchSublist method to BinaryTable for improved data retrieval

cpp/debug/debug_alloc.cpp

@@ -0,0 +1,61 @@
+#include <iostream>
+#include <filesystem>
+#include "../binary_table.h"
+
+int main() {
+    using namespace bt;
+    
+    const std::string filename = "debug_alloc.bin";
+    if (std::filesystem::exists(filename)) {
+        std::filesystem::remove(filename);
+    }
+    
+    BinaryTable table(filename);
+    table.initialize();
+    
+    std::cout << "=== Testing Memory Allocation Issues ===\n" << std::endl;
+    
+    // Store first key and see what address it gets
+    std::cout << "1. Storing first key..." << std::endl;
+    table.set<int32_t>("key1", 100);
+    
+    // Get the address where key1's value was stored
+    auto addressTable1 = table.getReference("key1").getPointer();
+    std::cout << "   key1 value stored at: " << addressTable1.address() << std::endl;
+    
+    // Store second key and see what addresses are used
+    std::cout << "2. Storing second key..." << std::endl;
+    table.set<int32_t>("key2", 200);
+    
+    auto addressTable2 = table.getReference("key2").getPointer();
+    std::cout << "   key2 value stored at: " << addressTable2.address() << std::endl;
+    
+    // Check if key1 is still accessible
+    std::cout << "3. Checking if key1 is still accessible..." << std::endl;
+    try {
+        int32_t val1 = table.get<int32_t>("key1");
+        std::cout << "   ✅ key1 still works: " << val1 << std::endl;
+    } catch (const std::exception& e) {
+        std::cout << "   ❌ key1 broken: " << e.what() << std::endl;
+        
+        // Let's see what's actually stored at key1's address
+        try {
+            auto ref = table.getReference("key1");
+            std::cout << "   key1 type is: " << static_cast<int>(ref.getType()) << std::endl;
+        } catch (const std::exception& e2) {
+            std::cout << "   Can't even get type: " << e2.what() << std::endl;
+        }
+    }
+    
+    std::cout << "\n=== Address Comparison ===\n" << std::endl;
+    std::cout << "key1 address: " << addressTable1.address() << std::endl;
+    std::cout << "key2 address: " << addressTable2.address() << std::endl;
+    
+    if (addressTable1.address() == addressTable2.address()) {
+        std::cout << "💥 SAME ADDRESS! This proves the bug!" << std::endl;
+    } else {
+        std::cout << "Addresses are different, issue is elsewhere" << std::endl;
+    }
+    
+    return 0;
+}