From 91d48a21927532617aef2f5f3105accc213b993e Mon Sep 17 00:00:00 2001
From: AlexPeshkoff <alexander.peshkoff@gmail.com>
Date: Mon, 2 Dec 2019 14:19:23 +0300
Subject: [PATCH] Comment

---
 src/dsql/dsql.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/dsql/dsql.cpp b/src/dsql/dsql.cpp
index 199b953eca..b78a61b2dd 100644
--- a/src/dsql/dsql.cpp
+++ b/src/dsql/dsql.cpp
@@ -2176,11 +2176,16 @@ static UCHAR* var_info(const dsql_msg* message,
 		if (param->par_index >= first_index)
 		{
 			dsc desc = param->par_desc;
+
+			// Scan sources of coercion rules in reverse order to observe
+			// 'last entered in use' rule. Start with dynamic binding rules ...
 			if (!attachment->att_bindings.coerce(&desc))
 			{
+				// next - given in DPB ...
 				if (!attachment->getInitialBindings()->coerce(&desc))
 				{
 					Database* dbb = tdbb->getDatabase();
+					// and finally - rules from .conf files.
 					dbb->getBindings()->coerce(&desc, dbb->dbb_compatibility_index);
 				}
 			}