diff --git a/src/jrd/DatabaseSnapshot.cpp b/src/jrd/DatabaseSnapshot.cpp
index b7df465f23..5caad76011 100644
--- a/src/jrd/DatabaseSnapshot.cpp
+++ b/src/jrd/DatabaseSnapshot.cpp
@@ -406,7 +406,7 @@ int DatabaseSnapshot::blockingAst(void* ast_object)
 	// We create a static pool in order to avoid dbb_permanent being a point of
 	// concurrency conflicts. This pool will be automagically destroyed during
 	// database detach. This is safe in Classic, as a process holds single dbb.
-	static JrdMemoryPool* const pool = JrdMemoryPool::createPool();
+	static JrdMemoryPool* const pool = JrdMemoryPool::createPool(false);
 #endif
 
 	Jrd::ContextPoolHolder context(tdbb, pool);
@@ -416,7 +416,7 @@ int DatabaseSnapshot::blockingAst(void* ast_object)
 		// Write the data to the shared memory
 		try
 		{
-			dumpData(tdbb);
+			dumpData(tdbb, true);
 		}
 		catch (const Exception& ex)
 		{
@@ -465,7 +465,7 @@ DatabaseSnapshot::DatabaseSnapshot(thread_db* tdbb, MemoryPool& pool)
 	LCK_release(tdbb, dbb->dbb_monitor_lock);
 
 	// Dump our own data
-	dumpData(tdbb);
+	dumpData(tdbb, false);
 
 	// Signal other processes to dump their data
 	Lock temp_lock, *lock = &temp_lock;
@@ -830,14 +830,14 @@ const char* DatabaseSnapshot::checkNull(int rid, int fid, const char* source, si
 }
 
 
-void DatabaseSnapshot::dumpData(thread_db* tdbb)
+void DatabaseSnapshot::dumpData(thread_db* tdbb, bool ast)
 {
 	fb_assert(tdbb);
 
 	Database* const dbb = tdbb->getDatabase();
 	fb_assert(dbb);
 
-	if (dbb->dbb_flags & DBB_not_in_use)
+	if (ast && dbb->dbb_flags & DBB_not_in_use)
 	{
 		return;
 	}
diff --git a/src/jrd/DatabaseSnapshot.h b/src/jrd/DatabaseSnapshot.h
index e381ce5f21..3d8b6a3fb6 100644
--- a/src/jrd/DatabaseSnapshot.h
+++ b/src/jrd/DatabaseSnapshot.h
@@ -127,7 +127,7 @@ private:
 	void clearRecord(Record*);
 	void putField(Record*, int, const Firebird::ClumpletReader&, bool);
 
-	static void dumpData(thread_db*);
+	static void dumpData(thread_db*, bool ast);
 	static const char* checkNull(int, int, const char*, size_t);
 
 	static SINT64 getGlobalId(int);
diff --git a/src/jrd/all.cpp b/src/jrd/all.cpp
index f8f21b8cfe..fde770e404 100644
--- a/src/jrd/all.cpp
+++ b/src/jrd/all.cpp
@@ -83,15 +83,16 @@ JrdMemoryPool *JrdMemoryPool::createDbPool(Firebird::MemoryStats &stats) {
 	return result;
 }
 
-JrdMemoryPool *JrdMemoryPool::createPool() {
+JrdMemoryPool *JrdMemoryPool::createPool(bool withParent) {
     Database* dbb = GET_DBB();
 	fb_assert(dbb);
 		
 #ifdef SUPERSERVER
 	JrdMemoryPool* result = (JrdMemoryPool *)internal_create(sizeof(JrdMemoryPool),
-		dbb->dbb_permanent,	dbb->dbb_memory_stats);
+		withParent ? dbb->dbb_permanent : NULL, dbb->dbb_memory_stats);
 #else
-	JrdMemoryPool *result = (JrdMemoryPool *)internal_create(sizeof(JrdMemoryPool), dbb->dbb_permanent);
+	JrdMemoryPool *result = (JrdMemoryPool *)internal_create(sizeof(JrdMemoryPool), 
+		withParent ? dbb->dbb_permanent : NULL);
 #endif
 	result->plb_dccs = NULL;
 	dbb->dbb_pools.push(result);
diff --git a/src/jrd/all.h b/src/jrd/all.h
index 653fc5b6fe..40d58502cf 100644
--- a/src/jrd/all.h
+++ b/src/jrd/all.h
@@ -49,7 +49,7 @@ protected:
 	~JrdMemoryPool();
 public:
 	static JrdMemoryPool *createDbPool(Firebird::MemoryStats &stats);
-	static JrdMemoryPool *createPool();
+	static JrdMemoryPool *createPool(bool withParent = true);
 	static JrdMemoryPool** deletePool(JrdMemoryPool* pool);
 	static void noDbbDeletePool(JrdMemoryPool* pool);