added pyarrow Schema equals, and related def for CSchema

python/pyarrow/includes/libarrow.pxd

@@ -88,6 +88,9 @@ cdef extern from "arrow/api.h" namespace "arrow" nogil:
 
     cdef cppclass CSchema" arrow::Schema":
         CSchema(const vector[shared_ptr[CField]]& fields)
+
+        c_bool Equals(const shared_ptr[CSchema]& other)
+
         const shared_ptr[CField]& field(int i)
         int num_fields()
         c_string ToString()

python/pyarrow/schema.pyx

@@ -110,6 +110,15 @@ cdef class Schema:
         self.schema = schema.get()
         self.sp_schema = schema
 
+    def equals(self, other):
+        """
+        Test if this schema is equal to the other
+        """
+        cdef Schema _other
+        _other = other
+
+        return self.sp_schema.get().Equals(_other.sp_schema)
+
     @classmethod
     def from_fields(cls, fields):
         cdef: