fix(starrocks): override olap_table macro to skip empty PROPERTIES

The upstream adapter checks `properties is not none` to decide whether to
emit a PROPERTIES () block, but dbt_project.yml sets +properties: {} on
b2b_analytics models to clear inherited Iceberg/Trino format properties.
An empty dict is not None, so the adapter generated an empty
`PROPERTIES ( )` clause which StarRocks rejects with a syntax error.

Local macro override adds `and properties | length > 0` to the guard,
matching the same pattern used in apply_grants_macro_override.sql.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: blarghmatey

src/ol_dbt/macros/starrocks_relation_helpers_override.sql

@@ -0,0 +1,115 @@
+/*
+ * Override for starrocks__olap_table to guard against empty PROPERTIES dicts.
+ *
+ * The upstream adapter checks `properties is not none`, but an empty dict {}
+ * (set via +properties: {} in dbt_project.yml to clear inherited Iceberg/Trino
+ * properties) is not None and causes StarRocks to reject the DDL with
+ * "No viable statement for input 'PROPERTIES ( )'".
+ */
+
+{% macro starrocks__olap_table(is_create_table_as) -%}
+
+  {%- set is_create_table = is_create_table_as is none or not is_create_table_as -%}
+
+  {%- set table_type = config.get('table_type', 'DUPLICATE') -%}
+  {%- set keys = config.get('keys') -%}
+  {%- set partition_by = config.get('partition_by') -%}
+  {%- set partition_by_init = config.get('partition_by_init') -%}
+  {%- set order_by = config.get('order_by') -%}
+  {%- set partition_type = config.get('partition_type', 'RANGE') -%}
+  {%- set buckets = config.get('buckets') -%}
+  {%- set distributed_by = config.get('distributed_by') -%}
+  {%- set properties = config.get('properties') -%}
+  {%- set materialized = config.get('materialized', none) -%}
+  {%- set unique_key = config.get('unique_key', none) -%}
+
+  {%- if materialized == 'incremental' and unique_key is not none -%}
+    {%- set table_type = 'PRIMARY' -%}
+    {%- set keys = unique_key if unique_key is sequence and unique_key is not mapping and unique_key is not string else [unique_key] -%}
+  {%- endif -%}
+
+  {# 1. SET ENGINE #}
+  {%- if is_create_table %} ENGINE = OLAP {% endif -%}
+
+  {# 2. SET KEYS #}
+  {%- if keys is not none -%}
+    {%- if table_type == "DUPLICATE" %}
+      DUPLICATE KEY (
+        {%- for item in keys -%}
+          {{ item }} {%- if not loop.last -%}, {%- endif -%}
+        {%- endfor -%}
+      )
+    {%- elif table_type == "PRIMARY" %}
+      PRIMARY KEY (
+        {%- for item in keys -%}
+          {{ item }} {%- if not loop.last -%}, {%- endif -%}
+        {%- endfor -%}
+      )
+    {%- elif table_type == "UNIQUE" %}
+      UNIQUE KEY (
+        {%- for item in keys -%}
+          {{ item }} {%- if not loop.last -%}, {%- endif -%}
+        {%- endfor -%}
+      )
+    {%- else -%}
+      {%- set msg -%}
+        "{{ table_type }}" is not support
+      {%- endset -%}
+      {{ exceptions.raise_compiler_error(msg) }}
+    {%- endif -%}
+  {%- else -%}
+    {%- if table_type != "DUPLICATE" -%}
+      {%- set msg -%}
+        "{{ table_type }}" is must set "keys"
+      {%- endset -%}
+      {{ exceptions.raise_compiler_error(msg) }}
+    {%- endif -%}
+  {% endif -%}
+
+  {# 3. SET PARTITION #}
+  {% if partition_by is not none -%}
+    {{ starrocks__partition_by(partition_type, partition_by, partition_by_init) }}
+  {%- endif %}
+
+  {# 4. SET DISTRIBUTED #}
+  {%- if distributed_by is not none %}
+    DISTRIBUTED BY HASH (
+      {%- for item in distributed_by -%}
+        {{ item }} {%- if not loop.last -%}, {%- endif -%}
+      {%- endfor -%}
+    )
+    {%- if buckets is not none -%}
+      BUCKETS {{ buckets }}
+    {%- elif adapter.is_before_version("2.5.7") -%}
+      {%- set msg -%}
+        [buckets] must set before version 2.5.7, current version is {{ adapter.current_version() }}
+      {%- endset -%}
+      {{ exceptions.raise_compiler_error(msg) }}
+    {%- endif -%}
+  {%- elif adapter.is_before_version("3.1.0") -%}
+    {%- set msg -%}
+      [distributed_by] must set before version 3.1, current version is {{ adapter.current_version() }}
+    {%- endset -%}
+    {{ exceptions.raise_compiler_error(msg) }}
+  {% endif -%}
+
+  {# 5. SET ORDER BY #}
+  {% if order_by is not none %}
+    ORDER BY (
+      {%- for item in order_by -%}
+        {{ item }} {%- if not loop.last -%}, {%- endif -%}
+      {%- endfor -%}
+    )
+  {% endif %}
+
+  {# 6. SET PROPERTIES — skip if None or empty dict #}
+  {% if properties is not none and properties | length > 0 %}
+    PROPERTIES (
+      {% for key, value in properties.items() -%}
+        "{{ key }}" = "{{ value }}"
+        {%- if not loop.last -%},
+        {% endif -%}
+      {%- endfor %}
+    )
+  {% endif %}
+{%- endmacro %}