Replace UnboundPartitionSpec Builder

Author: c-thiel

crates/catalog/rest/src/catalog.rs

@@ -1467,13 +1467,13 @@ mod tests {
             .properties(HashMap::from([("owner".to_string(), "testx".to_string())]))
             .partition_spec(
                 UnboundPartitionSpec::builder()
-                    .with_fields(vec![UnboundPartitionField::builder()
+                    .with_unbound_fields(vec![UnboundPartitionField::builder()
                         .source_id(1)
                         .transform(Transform::Truncate(3))
                         .name("id".to_string())
                         .build()])
-                    .build()
-                    .unwrap(),
+                    .unwrap()
+                    .build_unbound(),
             )
             .sort_order(
                 SortOrder::builder()

crates/iceberg/src/catalog/mod.rs

@@ -802,22 +802,24 @@ mod tests {
                             .transform(Transform::Day)
                             .build(),
                     )
+                    .unwrap()
                     .with_unbound_partition_field(
                         UnboundPartitionField::builder()
                             .source_id(1)
                             .name("id_bucket".to_string())
                             .transform(Transform::Bucket(16))
                             .build(),
                     )
+                    .unwrap()
                     .with_unbound_partition_field(
                         UnboundPartitionField::builder()
                             .source_id(2)
                             .name("id_truncate".to_string())
                             .transform(Transform::Truncate(4))
                             .build(),
                     )
-                    .build()
-                    .unwrap(),
+                    .unwrap()
+                    .build_unbound(),
             },
         );
     }

crates/iceberg/src/spec/partition.rs

@@ -144,22 +144,19 @@ pub struct UnboundPartitionField {
 }
 
 /// Unbound partition spec can be built without a schema and later bound to a schema.
-#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, Clone, Default, Builder)]
+#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, Clone, Default)]
 #[serde(rename_all = "kebab-case")]
-#[builder(setter(prefix = "with"))]
 pub struct UnboundPartitionSpec {
     /// Identifier for PartitionSpec
-    #[builder(default, setter(strip_option))]
     pub spec_id: Option<i32>,
     /// Details of the partition spec
-    #[builder(setter(each(name = "with_unbound_partition_field")))]
     pub fields: Vec<UnboundPartitionField>,
 }
 
 impl UnboundPartitionSpec {
     /// Create unbound partition spec builer
-    pub fn builder() -> UnboundPartitionSpecBuilder {
-        UnboundPartitionSpecBuilder::default()
+    pub fn builder() -> PartitionSpecBuilder {
+        PartitionSpecBuilder::default()
     }
 }