fix(manifest): ManifestEntry partition field schema should be dynamically generated

internal/must.go

@@ -0,0 +1,26 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package internal
+
+func Must[T any](v T, err error) T {
+	if err != nil {
+		panic(err)
+	}
+
+	return v
+}

literals.go

@@ -108,6 +108,11 @@ func NewLiteral[T LiteralType](val T) Literal {
 	panic("can't happen due to literal type constraint")
 }
 
+func getComparator[T LiteralType]() Comparator[T] {
+	var z T
+	return NewLiteral(z).(TypedLiteral[T]).Comparator()
+}
+
 // LiteralFromBytes uses the defined Iceberg spec for how to serialize a value of
 // a the provided type and returns the appropriate Literal value from it.
 //