ARROW-5388: [Go] use arrow.TypeEquals in array.NewChunked

Author: Sebastien Binet <binet@cern.ch>

Closes #4362 from sbinet/issue-5388 and squashes the following commits:

cb50f87 <Sebastien Binet> ARROW-5388:  use arrow.TypeEquals in array.NewChunked

Author: sbinet

go/arrow/array/table.go

@@ -117,7 +117,7 @@ func NewChunked(dtype arrow.DataType, chunks []Interface) *Chunked {
 		dtype:    dtype,
 	}
 	for i, chunk := range chunks {
-		if chunk.DataType() != dtype {
+		if !arrow.TypeEquals(chunk.DataType(), dtype) {
 			panic("arrow/array: mismatch data type")
 		}
 		chunk.Retain()

go/arrow/array/table_test.go

@@ -112,6 +112,28 @@ func TestChunked(t *testing.T) {
 	}
 }
 
+func TestChunkedEqualDataType(t *testing.T) {
+	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
+	defer mem.AssertSize(t, 0)
+
+	lb1 := array.NewListBuilder(mem, arrow.PrimitiveTypes.Int32)
+	defer lb1.Release()
+
+	v1 := lb1.NewArray()
+	defer v1.Release()
+
+	lb2 := array.NewListBuilder(mem, arrow.PrimitiveTypes.Int32)
+	defer lb2.Release()
+
+	v2 := lb2.NewArray()
+	defer v2.Release()
+
+	c1 := array.NewChunked(arrow.ListOf(arrow.PrimitiveTypes.Int32), []array.Interface{
+		v1, v2,
+	})
+	defer c1.Release()
+}
+
 func TestChunkedInvalid(t *testing.T) {
 	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
 	defer mem.AssertSize(t, 0)