Skip selecting result_rows column when disable_samples=true

Thread disable_samples into current_tests_run_results_query and the
clickhouse inline query so the legacy elementary_test_results.result_rows
column is replaced with null/empty when samples are disabled. Avoids
materializing the column into the temp table and serializing it through
agate.

Co-Authored-By: mika@elementary-data.com <mika.kerman@gmail.com>

Author: devin-ai-integration[bot]

elementary/monitor/dbt_project/macros/base_queries/current_tests_run_results_query.sql

@@ -1,4 +1,4 @@
-{% macro current_tests_run_results_query(days_back = none, invocation_id = none) %}
+{% macro current_tests_run_results_query(days_back = none, invocation_id = none, disable_samples = false) %}
     with elementary_test_results as (
         select * from {{ ref('elementary', 'elementary_test_results') }}
         {% if days_back %}
@@ -79,7 +79,7 @@
         dbt_tests.short_name,
         elementary_test_results.test_alias,
         elementary_test_results.failures,
-        elementary_test_results.result_rows,
+        {% if disable_samples %}null{% else %}elementary_test_results.result_rows{% endif %} as result_rows,
         dbt_tests.original_path,
         dbt_tests.meta,
         dbt_tests.description as test_description,

elementary/monitor/dbt_project/macros/get_test_results.sql

@@ -44,7 +44,7 @@
     {% set elementary_tests_allowlist_status = ['fail', 'warn'] if disable_passed_test_metrics else ['fail', 'warn', 'pass']  %}
     {% set select_test_results %}
         with test_results as (
-            {{ elementary_cli.current_tests_run_results_query(days_back=days_back) }}
+            {{ elementary_cli.current_tests_run_results_query(days_back=days_back, disable_samples=disable_samples) }}
         ),
 
         ordered_test_results as (
@@ -136,7 +136,7 @@
 
     {# Step 1 – materialise the base test-results query into a temp table #}
     {% set base_query %}
-        {{ elementary_cli.current_tests_run_results_query(days_back=days_back) }}
+        {{ elementary_cli.current_tests_run_results_query(days_back=days_back, disable_samples=disable_samples) }}
     {% endset %}
 
     {% set elementary_database, elementary_schema = elementary.get_package_database_and_schema() %}
@@ -270,7 +270,7 @@
         {{ elementary.edr_datediff(elementary.edr_cast_as_timestamp('etr.detected_at'), elementary.edr_current_timestamp(), 'day') }} AS days_diff,
         ROW_NUMBER() OVER (PARTITION BY elementary_unique_id ORDER BY etr.detected_at DESC) AS invocations_rank_index,
         etr.failures,
-        etr.result_rows
+        {% if disable_samples %}''{% else %}etr.result_rows{% endif %} AS result_rows
     FROM {{ ref('elementary', 'elementary_test_results') }} etr
     JOIN {{ ref('elementary', 'dbt_tests') }} dt ON etr.test_unique_id = dt.unique_id
     LEFT JOIN (