Merge branch 'fix/h004-index-definition' into 'main'

reports(H004): include index_definition like H002

See merge request postgres-ai/postgres_ai!71

Author: bogdan-ts

reporter/postgres_reports.py

@@ -511,6 +511,8 @@ def generate_h004_redundant_indexes_report(self, cluster: str = "local", node_na
 
         redundant_indexes_by_db = {}
         for db_name in databases:
+            # Fetch index definitions from the sink for this database (used to aid remediation)
+            index_definitions = self.get_index_definitions_from_sink(db_name)
             # Query redundant indexes for each database using last_over_time to get most recent value
             redundant_indexes_query = f'last_over_time(pgwatch_redundant_indexes_index_size_bytes{{cluster="{cluster}", node_name="{node_name}", dbname="{db_name}"}}[10h])'
             result = self.query_instant(redundant_indexes_query)
@@ -560,6 +562,7 @@ def generate_h004_redundant_indexes_report(self, cluster: str = "local", node_na
                         "table_size_bytes": table_size_bytes,
                         "index_usage": index_usage,
                         "supports_fk": supports_fk,
+                        "index_definition": index_definitions.get(index_name, 'Definition not available'),
                         "index_size_pretty": self.format_bytes(index_size_bytes),
                         "table_size_pretty": self.format_bytes(table_size_bytes)
                     }