extend behavior to generate_schema_name

dbt/include/duckdb/macros/adapters.sql

@@ -40,8 +40,8 @@
   {% set sql -%}
         select count(*)
         from system.information_schema.schemata
-        where schema_name = '{{ schema }}'
-        and catalog_name = '{{ information_schema.database }}'
+        where lower(schema_name) = '{{ schema | lower }}'
+        and lower(catalog_name) = '{{ information_schema.database | lower }}'
   {%- endset %}
   {{ return(run_query(sql)) }}
 {% endmacro %}
@@ -132,7 +132,7 @@ def materialize(df, con):
       from system.information_schema.columns
       where table_name = '{{ relation.identifier }}'
       {% if relation.schema %}
-      and table_schema = '{{ relation.schema }}'
+      and lower(table_schema) = '{{ relation.schema | lower }}'
       {% endif %}
       {% if relation.database %}
       and lower(table_catalog) = '{{ relation.database | lower }}'
@@ -156,7 +156,7 @@ def materialize(df, con):
         WHEN 'LOCAL TEMPORARY' THEN 'table'
         END as type
     from system.information_schema.tables
-    where table_schema = '{{ schema_relation.schema }}'
+    where lower(table_schema) = '{{ schema_relation.schema | lower }}'
     and lower(table_catalog) = '{{ schema_relation.database | lower }}'
   {% endcall %}
   {{ return(load_result('list_relations_without_caching').table) }}

tests/functional/plugins/motherduck/fixtures.py

@@ -16,6 +16,13 @@
 {%- endmacro %}
 """
 
+
+macros__generate_schema_name = """
+{% macro generate_schema_name(custom_schema_name=none, node=none) -%}
+    {{ target.schema | trim }}_{{ var("build_env") | trim }}_{{ var("org_prefix") | trim }}
+{%- endmacro %}
+"""
+
 #
 # Seeds
 #

tests/functional/plugins/motherduck/test_macros.py

@@ -17,6 +17,7 @@
 from tests.functional.plugins.motherduck.fixtures import (
     models__gen_data_macro,
     macros__generate_database_name,
+    macros__generate_schema_name,
     seeds__example_seed_csv,
 )
 
@@ -47,7 +48,10 @@ def models(self):
 
     @pytest.fixture(scope="class")
     def macros(self):
-        return {"db_name.sql": macros__generate_database_name}
+        return {
+            "db_name.sql": macros__generate_database_name,
+            "schema_name.sql": macros__generate_schema_name
+        }
 
     @staticmethod
     def gen_project_config_update(build_env, org_prefix):