From 7daa76c716f096b9187760b83ead2a7bf0747d08 Mon Sep 17 00:00:00 2001
From: Noam Preil <noam@pixelhero.dev>
Date: Fri, 7 Nov 2025 08:57:16 -0600
Subject: [PATCH 1/2] test: string => unsafe.String

---
 arrow/ipc/metadata.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arrow/ipc/metadata.go b/arrow/ipc/metadata.go
index b83c1a84..dc9423c4 100644
--- a/arrow/ipc/metadata.go
+++ b/arrow/ipc/metadata.go
@@ -22,6 +22,7 @@ import (
 	"fmt"
 	"io"
 	"sort"
+	"unsafe"
 
 	"github.com/apache/arrow-go/v18/arrow"
 	"github.com/apache/arrow-go/v18/arrow/endian"
@@ -183,7 +184,8 @@ func fieldFromFB(field *flatbuf.Field, pos dictutils.FieldPos, memo *dictutils.M
 		o   arrow.Field
 	)
 
-	o.Name = string(field.Name())
+	name := field.Name()
+	o.Name = unsafe.String(&name[0], len(name))
 	o.Nullable = field.Nullable()
 	o.Metadata, err = metadataFromFB(field)
 	if err != nil {

From 73eb8a114950738ffcbca5043978c50c3063f2d8 Mon Sep 17 00:00:00 2001
From: Noam Preil <noam@pixelhero.dev>
Date: Fri, 7 Nov 2025 09:12:08 -0600
Subject: [PATCH 2/2] more tostring optimization

---
 arrow/ipc/metadata.go | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arrow/ipc/metadata.go b/arrow/ipc/metadata.go
index dc9423c4..67d86e37 100644
--- a/arrow/ipc/metadata.go
+++ b/arrow/ipc/metadata.go
@@ -35,6 +35,7 @@ import (
 // Magic string identifying an Apache Arrow file.
 var Magic = []byte("ARROW1")
 
+
 const (
 	currentMetadataVersion = MetadataV5
 	minMetadataVersion     = MetadataV4
@@ -462,7 +463,7 @@ func (fv *fieldVisitor) visit(field arrow.Field) {
 		field.Type = dt.StorageType()
 		fv.visit(field)
 		fv.meta[ExtensionTypeKeyName] = dt.ExtensionName()
-		fv.meta[ExtensionMetadataKeyName] = string(dt.Serialize())
+		fv.meta[ExtensionMetadataKeyName] = dt.Serialize()
 
 	case *arrow.DictionaryType:
 		field.Type = dt.ValueType
@@ -988,8 +989,9 @@ func timeFromFB(data flatbuf.Time) (arrow.DataType, error) {
 
 func timestampFromFB(data flatbuf.Timestamp) (arrow.DataType, error) {
 	unit := unitFromFB(data.Unit())
-	tz := string(data.Timezone())
-	return &arrow.TimestampType{Unit: unit, TimeZone: tz}, nil
+	tz := data.Timezone()
+	tzs := unsafe.String(&tz[0], len(tz))
+	return &arrow.TimestampType{Unit: unit, TimeZone: tzs}, nil
 }
 
 func dateFromFB(data flatbuf.Date) (arrow.DataType, error) {