joellubi commented on code in PR #43234:
URL: https://github.com/apache/arrow/pull/43234#discussion_r1689747229
##########
go/arrow/extensions/bool8.go:
##########
@@ -0,0 +1,196 @@
+package extensions
+
+import (
+ "fmt"
+ "reflect"
+ "strconv"
+ "strings"
+
+ "github.com/apache/arrow/go/v17/arrow"
+ "github.com/apache/arrow/go/v17/arrow/array"
+ "github.com/apache/arrow/go/v17/arrow/memory"
+ "github.com/apache/arrow/go/v17/internal/json"
+)
+
+const ExtensionNameBool8 = "bool8"
+
+// Bool8Type represents a logical boolean that is stored using 8 bits.
+type Bool8Type struct {
+ arrow.ExtensionBase
+}
+
+func NewBool8Type() *Bool8Type {
+ return &Bool8Type{ExtensionBase: arrow.ExtensionBase{Storage:
arrow.PrimitiveTypes.Int8}}
+}
+
+func (b *Bool8Type) ArrayType() reflect.Type { return
reflect.TypeOf(Bool8Array{}) }
+
+func (b *Bool8Type) Deserialize(storageType arrow.DataType, data string)
(arrow.ExtensionType, error) {
+ if data != ExtensionNameBool8 {
+ return nil, fmt.Errorf("type identifier did not match: '%s'",
data)
+ }
+ if !arrow.TypeEqual(storageType, arrow.PrimitiveTypes.Int8) {
+ return nil, fmt.Errorf("invalid storage type for Bool8Type:
%s", storageType.Name())
+ }
+ return NewBool8Type(), nil
+}
+
+func (b *Bool8Type) ExtensionEquals(other arrow.ExtensionType) bool {
+ return b.ExtensionName() == other.ExtensionName()
+}
+
+func (b *Bool8Type) ExtensionName() string { return ExtensionNameBool8 }
+
+func (b *Bool8Type) Serialize() string { return ExtensionNameBool8 }
+
+func (b *Bool8Type) String() string { return fmt.Sprintf("Bool8<storage=%s>",
b.Storage) }
Review Comment:
I pushed this change to #43323
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