diff --git a/Sources/Arrow/ArrowArray.swift b/Sources/Arrow/ArrowArray.swift
index 0942ecb..b9b1852 100644
--- a/Sources/Arrow/ArrowArray.swift
+++ b/Sources/Arrow/ArrowArray.swift
@@ -20,13 +20,13 @@ public protocol AnyArrowArray {
   var type: ArrowType { get }
   var length: UInt { get }
   var nullCount: UInt { get }
-  var array: AnyArray { get }
-  var data: ArrowData { get }
+  var arrowData: ArrowData { get }
   var bufferData: [Data] { get }
   var bufferDataSizes: [Int] { get }
+  func asAny(_ index: UInt) -> Any?
 }
 
-public class ArrowArray<T>: AsString, AnyArray, AnyArrowArray {
+public class ArrowArray<T>: AsString, AnyArrowArray {
   public typealias ItemType = T
   public let arrowData: ArrowData
   public var nullCount: UInt { self.arrowData.nullCount }
@@ -40,11 +40,6 @@ public class ArrowArray<T>: AsString, AnyArray, AnyArrowArray {
     arrowData.type
   }
 
-  // FIXME: Temporary to mimic ArrowArrayHolder protocol.
-  public var array: any AnyArray { self }
-
-  public var data: ArrowData { self.arrowData }
-
   public var bufferData: [Data] {
     self.arrowData.buffers.map { buffer in
       var data = Data()
@@ -347,13 +342,13 @@ public class NestedArray: ArrowArray<[Any?]> {
       .load(as: Int32.self)
       var items: [Any?] = []
       for i in startOffset..<endOffset {
-        items.append(values.array.asAny(UInt(i)))
+        items.append(values.asAny(UInt(i)))
       }
       return items
     case .strct(let _):
       var result: [Any?] = []
       for field in children {
-        result.append(field.array.asAny(index))
+        result.append(field.asAny(index))
       }
       return result
     default:
@@ -393,7 +388,7 @@ public class NestedArray: ArrowArray<[Any?]> {
       var output = "{"
       if let children = self.children {
         let parts = children.compactMap { child in
-          (child.array as? AsString)?.asString(index)
+          (child as? AsString)?.asString(index)
         }
         output.append(parts.joined(separator: ","))
       }
diff --git a/Sources/Arrow/ArrowArrayBuilder.swift b/Sources/Arrow/ArrowArrayBuilder.swift
index 16fdf12..09fa818 100644
--- a/Sources/Arrow/ArrowArrayBuilder.swift
+++ b/Sources/Arrow/ArrowArrayBuilder.swift
@@ -201,7 +201,7 @@ public class StructArrayBuilder: ArrowArrayBuilder<
     let buffers = self.bufferBuilder.finish()
     var childData: [ArrowData] = []
     for builder in self.builders {
-      childData.append(try builder.toHolder().array.arrowData)
+      childData.append(try builder.toHolder().arrowData)
     }
 
     let arrowData = try ArrowData(
@@ -240,7 +240,7 @@ public class ListArrayBuilder: ArrowArrayBuilder<ListBufferBuilder, NestedArray>
 
   public override func finish() throws(ArrowError) -> NestedArray {
     let buffers = self.bufferBuilder.finish()
-    let childData = try valueBuilder.toHolder().array.arrowData
+    let childData = try valueBuilder.toHolder().arrowData
     let arrowData = try ArrowData(
       self.type,
       buffers: buffers,
diff --git a/Sources/Arrow/ArrowDecoder.swift b/Sources/Arrow/ArrowDecoder.swift
index 7192fe0..c28be7b 100644
--- a/Sources/Arrow/ArrowDecoder.swift
+++ b/Sources/Arrow/ArrowDecoder.swift
@@ -91,39 +91,39 @@ public class ArrowDecoder: Decoder {
     ArrowSingleValueDecoding(self, codingPath: codingPath)
   }
 
-  func getCol(_ name: String) throws -> AnyArray {
+  func getCol(_ name: String) throws -> AnyArrowArray {
     guard let col = self.nameToCol[name] else {
       throw ArrowError.invalid("Column for key \"\(name)\" not found")
     }
 
-    return col.array
+    return col
   }
 
-  func getCol(_ index: Int) throws -> AnyArray {
+  func getCol(_ index: Int) throws -> AnyArrowArray {
     if index >= self.columns.count {
       throw ArrowError.outOfBounds(index: Int64(index))
     }
 
-    return self.columns[index].array
+    return self.columns[index]
   }
 
   func doDecode<T>(_ key: CodingKey) throws -> T? {
-    let array: AnyArray = try self.getCol(key.stringValue)
+    let array: AnyArrowArray = try self.getCol(key.stringValue)
     return array.asAny(self.rbIndex) as? T
   }
 
   func doDecode<T>(_ col: Int) throws -> T? {
-    let array: AnyArray = try self.getCol(col)
+    let array: AnyArrowArray = try self.getCol(col)
     return array.asAny(self.rbIndex) as? T
   }
 
   func isNull(_ key: CodingKey) throws -> Bool {
-    let array: AnyArray = try self.getCol(key.stringValue)
+    let array: AnyArrowArray = try self.getCol(key.stringValue)
     return array.asAny(self.rbIndex) == nil
   }
 
   func isNull(_ col: Int) throws -> Bool {
-    let array: AnyArray = try self.getCol(col)
+    let array: AnyArrowArray = try self.getCol(col)
     return array.asAny(self.rbIndex) == nil
   }
 }
diff --git a/Sources/Arrow/ArrowReader.swift b/Sources/Arrow/ArrowReader.swift
index 0d1be95..0443661 100644
--- a/Sources/Arrow/ArrowReader.swift
+++ b/Sources/Arrow/ArrowReader.swift
@@ -126,7 +126,7 @@ public struct ArrowReader: Sendable {
       }
       switch loadField(loadInfo, field: childField) {
       case .success(let holder):
-        children.append(holder.array.arrowData)
+        children.append(holder.arrowData)
       case .failure(let error):
         return .failure(error)
       }
@@ -173,7 +173,7 @@ public struct ArrowReader: Sendable {
       return makeArrayHolder(
         field, buffers: [arrowNullBuffer, arrowOffsetBuffer],
         nullCount: UInt(node.nullCount),
-        children: [childHolder.array.arrowData],
+        children: [childHolder.arrowData],
         rbLength: UInt(loadInfo.batchData.recordBatch.length))
     case .failure(let error):
       return .failure(error)
diff --git a/Sources/Arrow/ArrowTable.swift b/Sources/Arrow/ArrowTable.swift
index 0e22bd4..47b170f 100644
--- a/Sources/Arrow/ArrowTable.swift
+++ b/Sources/Arrow/ArrowTable.swift
@@ -127,7 +127,7 @@ public class ArrowTable {
   ) throws(ArrowError) -> ArrowColumn {
     var arrays: [ArrowArray<T>] = []
     for holder in holders {
-      guard let array = holder.array as? ArrowArray<T> else {
+      guard let array = holder as? ArrowArray<T> else {
         throw .runtimeError(
           "Array type mismatch: expected \(T.self) for field \(field.name)"
         )
@@ -266,20 +266,15 @@ public class RecordBatch {
     for columnIndex: Int
   ) throws(ArrowError) -> ArrowArray<T> {
     let arrayHolder = column(columnIndex)
-    if let array = arrayHolder.array as? ArrowArray<T> {
+    if let array = arrayHolder as? ArrowArray<T> {
       return array
     } else {
       throw .invalid(
-        "Could not convert \(arrayHolder.array) for \(columnIndex)"
+        "Could not convert \(arrayHolder) for \(columnIndex)"
       )
     }
   }
 
-  public func anyData(for columnIndex: Int) -> AnyArray {
-    let arrayHolder = column(columnIndex)
-    return arrayHolder.array
-  }
-
   public func column(_ index: Int) -> AnyArrowArray {
     self.columns[index]
   }
diff --git a/Sources/Arrow/ArrowWriter.swift b/Sources/Arrow/ArrowWriter.swift
index 755d5f8..013cdb4 100644
--- a/Sources/Arrow/ArrowWriter.swift
+++ b/Sources/Arrow/ArrowWriter.swift
@@ -209,7 +209,7 @@ public class ArrowWriter {
       offsets.append(fbb.create(struct: fieldNode))
       if case .strct(let fields) = column.type {
 
-        let nestedArray = column.array as? NestedArray
+        let nestedArray = column as? NestedArray
         if let nestedFields = nestedArray?.fields {
           writeFieldNodes(
             fields,
@@ -239,7 +239,7 @@ public class ArrowWriter {
         bufferOffset += bufferDataSize
 
         if case .strct(let fields) = column.type {
-          let nestedArray = column.array as? NestedArray
+          let nestedArray = column as? NestedArray
           if let nestedFields = nestedArray?.fields {
             writeBufferInfo(
               fields, columns: nestedFields,
@@ -312,7 +312,7 @@ public class ArrowWriter {
         addPadForAlignment(&bufferData)
         writer.append(bufferData)
         if case .strct(let fields) = column.type {
-          guard let nestedArray = column.array as? NestedArray,
+          guard let nestedArray = column as? NestedArray,
             let nestedFields = nestedArray.fields
           else {
             return .failure(
diff --git a/Sources/Arrow/ChunkedArray.swift b/Sources/Arrow/ChunkedArray.swift
index aa97a38..bd72930 100644
--- a/Sources/Arrow/ChunkedArray.swift
+++ b/Sources/Arrow/ChunkedArray.swift
@@ -14,12 +14,6 @@
 
 import Foundation
 
-public protocol AnyArray {
-  var arrowData: ArrowData { get }
-  func asAny(_ index: UInt) -> Any?
-  var length: UInt { get }
-}
-
 public protocol AsString {
   func asString(_ index: UInt) -> String
 }
diff --git a/Tests/ArrowTests/ArrayTests.swift b/Tests/ArrowTests/ArrayTests.swift
index dd8b146..9bf9434 100644
--- a/Tests/ArrowTests/ArrayTests.swift
+++ b/Tests/ArrowTests/ArrayTests.swift
@@ -379,7 +379,7 @@ struct ArrayTests {
     #expect(structArray.length == 3)
     #expect(structArray[1] == nil)
     #expect(structArray.fields![0].length == 3)
-    #expect(structArray.fields![0].array.asAny(1) == nil)
+    #expect(structArray.fields![0].asAny(1) == nil)
     #expect(structArray[0]![STIndex.bool.rawValue] as? Bool == true)
     #expect(structArray[0]![STIndex.int8.rawValue] as? Int8 == 1)
     #expect(structArray[0]![STIndex.int16.rawValue] as? Int16 == 2)
diff --git a/Tests/ArrowTests/CodableTests.swift b/Tests/ArrowTests/CodableTests.swift
index 125458d..67ae61d 100644
--- a/Tests/ArrowTests/CodableTests.swift
+++ b/Tests/ArrowTests/CodableTests.swift
@@ -244,7 +244,7 @@ struct CodableTests {
 
   func getArrayValue<T>(_ rb: RecordBatch, colIndex: Int, rowIndex: UInt) -> T?
   {
-    let anyArray = rb.columns[colIndex].array
+    let anyArray = rb.columns[colIndex]
     return anyArray.asAny(UInt(rowIndex)) as? T
   }
 
@@ -371,7 +371,7 @@ struct CodableTests {
     #expect(rb.columns[0].type == .int32)
     for index in 0..<100 {
       if index == 10 {
-        let anyArray = rb.columns[0].array
+        let anyArray = rb.columns[0]
         #expect(anyArray.asAny(UInt(index)) == nil)
       } else {
         #expect(
diff --git a/Tests/ArrowTests/IPCTests.swift b/Tests/ArrowTests/IPCTests.swift
index 2a19942..6614627 100644
--- a/Tests/ArrowTests/IPCTests.swift
+++ b/Tests/ArrowTests/IPCTests.swift
@@ -71,7 +71,7 @@ func checkBoolRecordBatch(
     #expect(recordBatch.schema.fields[1].type == .utf8)
     for index in 0..<recordBatch.length {
       let column = recordBatch.columns[0]
-      guard let str = column.array as? AsString else {
+      guard let str = column as? AsString else {
         throw .invalid("Could not cast column to AsString")
       }
       let val = "\(str.asString(index))"
@@ -108,8 +108,7 @@ func checkStructRecordBatch(
       Issue.record("Expected field 0 to be a struct")
       return []
     }
-    let nestedArray = recordBatch.columns[0].array as? NestedArray
-    guard let nestedArray else {
+    guard let nestedArray = recordBatch.columns[0] as? NestedArray else {
       throw .runtimeError("Could not cast to NestedArray")
     }
     guard let fields = nestedArray.fields else {
@@ -119,12 +118,12 @@ func checkStructRecordBatch(
     #expect(fields[0].type == .utf8)
     #expect(fields[1].type == .boolean)
     let column = recordBatch.columns[0]
-    guard let str = column.array as? AsString else {
+    guard let str = column as? AsString else {
       throw .runtimeError("String array is nil")
     }
     #expect("\(str.asString(0))" == "{0,false}")
     #expect("\(str.asString(1))" == "{1,true}")
-    #expect(column.array.asAny(2) == nil)
+    #expect(column.asAny(2) == nil)
   }
   return recordBatches
 }
@@ -278,15 +277,15 @@ struct IPCStreamReaderTests {
           #expect(recordBatch.schema.fields[4].type == .float32)
           let columns = recordBatch.columns
           #expect(columns[0].nullCount == 2)
-          let dateVal = "\((columns[2].array as! AsString).asString(0))"
+          let dateVal = "\((columns[2]  as! AsString).asString(0))"
           #expect(dateVal == "2014-09-10 00:00:00 +0000")
-          let stringVal = "\((columns[1].array as! AsString).asString(1))"
+          let stringVal = "\((columns[1]  as! AsString).asString(1))"
           #expect(stringVal == "test22")
-          let uintVal = "\((columns[0].array as! AsString).asString(0))"
+          let uintVal = "\((columns[0]  as! AsString).asString(0))"
           #expect(uintVal == "10")
-          let stringVal2 = "\((columns[1].array as! AsString).asString(3))"
+          let stringVal2 = "\((columns[1]  as! AsString).asString(3))"
           #expect(stringVal2 == "test44")
-          let uintVal2 = "\((columns[0].array as! AsString).asString(3))"
+          let uintVal2 = "\((columns[0]  as! AsString).asString(3))"
           #expect(uintVal2 == "44")
         }
       case .failure(let error):
@@ -324,7 +323,7 @@ struct IPCFileReaderTests {
         recordBatch.schema.fields[1].type == .utf8)
       for index in 0..<recordBatch.length {
         let column = recordBatch.columns[1]
-        let str = column.array as! AsString
+        let str = column as! AsString
         let val = "\(str.asString(index))"
         if index != 1 {
           #expect(!val.isEmpty)
@@ -431,15 +430,15 @@ struct IPCFileReaderTests {
           #expect(recordBatch.schema.fields[4].type == .float32)
           let columns = recordBatch.columns
           #expect(columns[0].nullCount == 2)
-          let dateVal = "\((columns[2].array as! AsString).asString(0))"
+          let dateVal = "\((columns[2]  as! AsString).asString(0))"
           #expect(dateVal == "2014-09-10 00:00:00 +0000")
-          let stringVal = "\((columns[1].array as! AsString).asString(1))"
+          let stringVal = "\((columns[1]  as! AsString).asString(1))"
           #expect(stringVal == "test22")
-          let uintVal = "\((columns[0].array as! AsString).asString(0))"
+          let uintVal = "\((columns[0]  as! AsString).asString(0))"
           #expect(uintVal == "10")
-          let stringVal2 = "\((columns[1].array as! AsString).asString(3))"
+          let stringVal2 = "\((columns[1]  as! AsString).asString(3))"
           #expect(stringVal2 == "test44")
-          let uintVal2 = "\((columns[0].array as! AsString).asString(3))"
+          let uintVal2 = "\((columns[0]  as! AsString).asString(3))"
           #expect(uintVal2 == "44")
         }
       case .failure(let error):
@@ -572,11 +571,11 @@ struct IPCFileReaderTests {
           #expect(fields.count == 14)
           let columns = recordBatch.columns
           #expect(columns[0].nullCount == 1)
-          #expect(columns[0].array.asAny(1) == nil)
-          let structVal = "\((columns[0].array as? AsString)!.asString(0))"
+          #expect(columns[0].asAny(1) == nil)
+          let structVal = "\((columns[0]  as? AsString)!.asString(0))"
           #expect(
             structVal == "{true,1,2,3,4,5,6,7,8,9.9,10.1,11,12,\(currentDate)}")
-          let nestedArray = (recordBatch.columns[0].array as? NestedArray)!
+          let nestedArray = (recordBatch.columns[0] as? NestedArray)!
           #expect(nestedArray.length == 3)
           #expect(nestedArray.fields != nil)
           #expect(nestedArray.fields!.count == 14)
@@ -626,7 +625,7 @@ struct IPCFileReaderTests {
         #expect(recordBatch.length == 4)
         let columns = recordBatch.columns
         let stringVal =
-          "\((columns[0].array as! AsString).asString(1))"
+          "\((columns[0]  as! AsString).asString(1))"
         #expect(stringVal == "test22")
       case .failure(let error):
         throw error
@@ -661,10 +660,10 @@ struct IPCFileReaderTests {
         #expect(recordBatch.length == 4)
         let columns = recordBatch.columns
         let stringVal =
-          "\((columns[0].array as! AsString).asString(0))"
+          "\((columns[0]  as! AsString).asString(0))"
         #expect(stringVal == "12345678")
         let stringVal2 =
-          "\((columns[1].array as! AsString).asString(3))"
+          "\((columns[1]  as! AsString).asString(3))"
         #expect(stringVal2 == "3")
       case .failure(let error):
         throw error