fix: cast timestamps to date in Daily_Record_Ct source data lookup (Databricks)

date_bounds CTE used raw MIN/MAX without CAST, so SEQUENCE generated
timestamps that never matched the date-typed existing_periods — all
dates appeared missing for timestamp columns.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: rboni-dk

testgen/template/dbsetup_test_types/test_types_Daily_Record_Ct.yaml

@@ -166,7 +166,7 @@ test_types:
     sql_flavor: databricks
     lookup_type: null
     lookup_query: |-
-      WITH date_bounds AS( SELECT MIN(`{COLUMN_NAME}`) AS min_date, MAX(`{COLUMN_NAME}`) AS max_date FROM `{TARGET_SCHEMA}`.`{TABLE_NAME}`), all_dates AS ( SELECT EXPLODE(SEQUENCE(min_date, max_date, INTERVAL 1 DAY)) AS all_dates FROM date_bounds ), existing_periods AS ( SELECT DISTINCT CAST(`{COLUMN_NAME}` AS DATE) AS period, COUNT(1) AS period_count FROM `{TARGET_SCHEMA}`.`{TABLE_NAME}` GROUP BY CAST(`{COLUMN_NAME}` AS DATE) ), missing_dates AS ( SELECT d.all_dates AS missing_period FROM all_dates d LEFT JOIN existing_periods e ON d.all_dates = e.period WHERE e.period IS NULL ) SELECT m.missing_period, MAX(e1.period) AS prior_available_date, MAX(e1.period_count) AS prior_available_date_count, MIN(e2.period) AS next_available_date, MAX(e2.period_count) AS next_available_date_count FROM missing_dates m LEFT JOIN existing_periods e1 ON e1.period < m.missing_period LEFT JOIN existing_periods e2 ON e2.period > m.missing_period GROUP BY m.missing_period ORDER BY m.missing_period LIMIT {LIMIT};
+      WITH date_bounds AS( SELECT CAST(MIN(`{COLUMN_NAME}`) AS DATE) AS min_date, CAST(MAX(`{COLUMN_NAME}`) AS DATE) AS max_date FROM `{TARGET_SCHEMA}`.`{TABLE_NAME}`), all_dates AS ( SELECT EXPLODE(SEQUENCE(min_date, max_date, INTERVAL 1 DAY)) AS all_dates FROM date_bounds ), existing_periods AS ( SELECT DISTINCT CAST(`{COLUMN_NAME}` AS DATE) AS period, COUNT(1) AS period_count FROM `{TARGET_SCHEMA}`.`{TABLE_NAME}` GROUP BY CAST(`{COLUMN_NAME}` AS DATE) ), missing_dates AS ( SELECT d.all_dates AS missing_period FROM all_dates d LEFT JOIN existing_periods e ON d.all_dates = e.period WHERE e.period IS NULL ) SELECT m.missing_period, MAX(e1.period) AS prior_available_date, MAX(e1.period_count) AS prior_available_date_count, MIN(e2.period) AS next_available_date, MAX(e2.period_count) AS next_available_date_count FROM missing_dates m LEFT JOIN existing_periods e1 ON e1.period < m.missing_period LEFT JOIN existing_periods e2 ON e2.period > m.missing_period GROUP BY m.missing_period ORDER BY m.missing_period LIMIT {LIMIT};
     error_type: Test Results
   - id: '1144'
     test_id: '1009'