Fixed drop of attachment-level GTT (reported in devel by Pavel and Adriano)

Author: AlexPeshkoff

src/dsql/DdlNodes.epp

@@ -14785,7 +14785,10 @@ void DropIndexNode::step2(thread_db* tdbb, jrd_tra* transaction)
 	fb_assert(idxId >= 0 && idxId < dbb->dbb_max_idx);
 
 	if (IDX_mark_index(tdbb, indexRelation, idxId))
-		indexRelation->eraseIndex(tdbb, idxId);
+	{
+		if (tdbb->tdbb_flags & TDBB_use_db_page_space)
+			indexRelation->eraseIndex(tdbb, idxId);
+	}
 }
 
 

src/jrd/Database.cpp

@@ -983,7 +983,6 @@ namespace Jrd
 				return std::greater{}(item.relation, relation);
 			},
 			pos);
-		fb_assert(found);
 
 		if (found)
 			dbb_del_pages.remove(pos);

src/jrd/btr.cpp

@@ -1186,7 +1186,8 @@ void BTR_mark_index_for_delete(thread_db* tdbb, RelationPermanent* rel, MetaId i
 
 	Cleanup releaseWindow([&] ()
 	{
-		CCH_RELEASE(tdbb, window);
+		if (window->win_bdb)
+			CCH_RELEASE(tdbb, window);
 	});
 
 	// Get index descriptor.  If index doesn't exist, just leave.