Renaming macro and method name

On second look I wasn't happy with my name choices for macro name and
method, hopefully what I have now makes more sense.

[CT-276] Apache Iceberg Support dbt-labs#294

dbt/adapters/spark/impl.py

@@ -30,7 +30,7 @@
 GET_COLUMNS_IN_RELATION_RAW_MACRO_NAME = "get_columns_in_relation_raw"
 LIST_SCHEMAS_MACRO_NAME = "list_schemas"
 LIST_RELATIONS_MACRO_NAME = "list_relations_without_caching"
-LIST_RELATIONS_NO_EXTENDED_MACRO_NAME = "list_relations_without_caching_no_extended"
+LIST_RELATIONS_SHOW_TABLES_MACRO_NAME = "list_relations_show_tables_without_caching"
 DESCRIBE_TABLE_EXTENDED_MACRO_NAME = "describe_table_extended_without_caching"
 DROP_RELATION_MACRO_NAME = "drop_relation"
 FETCH_TBL_PROPERTIES_MACRO_NAME = "fetch_tbl_properties"
@@ -127,7 +127,7 @@ def add_schema_to_cache(self, schema) -> str:
         # so jinja doesn't render things
         return ""
 
-    def use_show_tables(self, table_name):
+    def parse_information(self, table_name):
         information = ""
         kwargs = {"table_name": table_name}
         try:
@@ -165,7 +165,7 @@ def list_relations_without_caching(
         if try_show_tables:
             expected_result_rows = 3
             try:
-                results = self.execute_macro(LIST_RELATIONS_NO_EXTENDED_MACRO_NAME, kwargs=kwargs)
+                results = self.execute_macro(LIST_RELATIONS_SHOW_TABLES_MACRO_NAME, kwargs=kwargs)
             except dbt.exceptions.RuntimeException as e:
                 errmsg = getattr(e, "msg", "")
                 description = "Error while retrieving information about"
@@ -185,7 +185,7 @@ def list_relations_without_caching(
 
             if try_show_tables:
                 _, name, _ = row
-                information = self.use_show_tables(name)
+                information = self.parse_information(name)
                 _schema = schema_relation.schema
             else:
                 _schema, name, _, information = row

dbt/include/spark/macros/adapters.sql

@@ -218,20 +218,18 @@
   {% do return(load_result('list_relations_without_caching').table) %}
 {% endmacro %}
 
-{% macro list_relations_without_caching_no_extended(schema_relation) %}
-  {#-- We can't use temporary tables with `create ... as ()` syntax #}
+{% macro list_relations_show_tables_without_caching(schema_relation) %}
   {#-- Spark with iceberg tables don't work with show table extended for #}
   {#-- V2 iceberg tables #}
   {#-- https://issues.apache.org/jira/browse/SPARK-33393 #}
-  {% call statement('list_relations_without_caching_no_extended', fetch_result=True) -%}
+  {% call statement('list_relations_without_caching_show_tables', fetch_result=True) -%}
     show tables in {{ schema_relation }} like '*'
   {% endcall %}
 
-  {% do return(load_result('list_relations_without_caching_no_extended').table) %}
+  {% do return(load_result('list_relations_without_caching_show_tables').table) %}
 {% endmacro %}
 
 {% macro describe_table_extended_without_caching(table_name) %}
-  {#-- We can't use temporary tables with `create ... as ()` syntax #}
   {#-- Spark with iceberg tables don't work with show table extended for #}
   {#-- V2 iceberg tables #}
   {#-- https://issues.apache.org/jira/browse/SPARK-33393 #}