diff --git a/database/gdb/gdb.go b/database/gdb/gdb.go
index b7af2116cb..74d76e5c8a 100644
--- a/database/gdb/gdb.go
+++ b/database/gdb/gdb.go
@@ -701,13 +701,13 @@ func getConfigNodeByWeight(cg ConfigGroup) *ConfigNode {
 	}
 	// Exclude the right border value.
 	var (
-		min    = 0
-		max    = 0
-		random = grand.N(0, total-1)
+		minWeight = 0
+		maxWeight = 0
+		random    = grand.N(0, total-1)
 	)
 	for i := 0; i < len(cg); i++ {
-		max = min + cg[i].Weight*100
-		if random >= min && random < max {
+		maxWeight = minWeight + cg[i].Weight*100
+		if random >= minWeight && random < maxWeight {
 			// ====================================================
 			// Return a COPY of the ConfigNode.
 			// ====================================================
@@ -715,7 +715,7 @@ func getConfigNodeByWeight(cg ConfigGroup) *ConfigNode {
 			node = cg[i]
 			return &node
 		}
-		min = max
+		minWeight = maxWeight
 	}
 	return nil
 }
diff --git a/database/gdb/gdb_model_hook.go b/database/gdb/gdb_model_hook.go
index 7dd0074057..3428990a73 100644
--- a/database/gdb/gdb_model_hook.go
+++ b/database/gdb/gdb_model_hook.go
@@ -66,11 +66,12 @@ type internalParamHookDelete struct {
 // which is usually not be interesting for upper business hook handler.
 type HookSelectInput struct {
 	internalParamHookSelect
-	Model  *Model        // Current operation Model.
-	Table  string        // The table name that to be used. Update this attribute to change target table name.
-	Schema string        // The schema name that to be used. Update this attribute to change target schema name.
-	Sql    string        // The sql string that to be committed.
-	Args   []interface{} // The arguments of sql.
+	Model      *Model        // Current operation Model.
+	Table      string        // The table name that to be used. Update this attribute to change target table name.
+	Schema     string        // The schema name that to be used. Update this attribute to change target schema name.
+	Sql        string        // The sql string that to be committed.
+	Args       []interface{} // The arguments of sql.
+	SelectType SelectType    // The type of this SELECT operation.
 }
 
 // HookInsertInput holds the parameters for insert hook operation.
diff --git a/database/gdb/gdb_model_select.go b/database/gdb/gdb_model_select.go
index 5c30cdee2d..8c6433abf0 100644
--- a/database/gdb/gdb_model_select.go
+++ b/database/gdb/gdb_model_select.go
@@ -682,10 +682,11 @@ func (m *Model) doGetAllBySql(
 			},
 			handler: m.hookHandler.Select,
 		},
-		Model: m,
-		Table: m.tables,
-		Sql:   sql,
-		Args:  m.mergeArguments(args),
+		Model:      m,
+		Table:      m.tables,
+		Sql:        sql,
+		Args:       m.mergeArguments(args),
+		SelectType: selectType,
 	}
 	if result, err = in.Next(ctx); err != nil {
 		return