From c0cbfd15e8e4acb235bc71cd14f30bb6f3056ef6 Mon Sep 17 00:00:00 2001
From: meiji163 <mysatellite99@gmail.com>
Date: Wed, 18 Dec 2024 15:39:33 -0800
Subject: [PATCH] modify ColumnList creation

---
 go/sql/types.go | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/go/sql/types.go b/go/sql/types.go
index 894b9277d..f7aac5f5f 100644
--- a/go/sql/types.go
+++ b/go/sql/types.go
@@ -246,16 +246,13 @@ func (this *ColumnList) IsSubsetOf(other *ColumnList) bool {
 }
 
 func (this *ColumnList) FilterBy(f func(Column) bool) *ColumnList {
-	filteredList := &ColumnList{}
-	filteredList.Ordinals = this.Ordinals
-	filteredCols := []Column{}
+	filteredCols := make([]Column, 0, len(this.columns))
 	for _, column := range this.columns {
 		if f(column) {
 			filteredCols = append(filteredCols, column)
 		}
 	}
-	filteredList.columns = filteredCols
-	return filteredList
+	return &ColumnList{Ordinals: this.Ordinals, columns: filteredCols}
 }
 
 func (this *ColumnList) Len() int {