Module: PgMonitor::IndexUsage

Defined in:
lib/pg_monitor/index_usage.rb

Class Method Summary collapse

Class Method Details

.fetchObject



7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
# File 'lib/pg_monitor/index_usage.rb', line 7

def fetch
  query = "    SELECT \n      relname AS table_name,\n      indexrelname AS index_name,\n      idx_scan AS index_scan_count,\n      idx_tup_read AS tuples_read,\n      idx_tup_fetch AS tuples_fetched,\n      last_idx_scan AS last_index_scan,\n      pg_size_pretty(pg_relation_size(indexrelid)) AS index_size,\n      pg_size_pretty(pg_total_relation_size(indexrelid)) AS total_index_size\n    FROM pg_stat_user_indexes\n    ORDER BY idx_scan DESC;\n  SQL\n\n  result = DBConnection.connection.exec(query)\n  result.map { |row| row }\nend\n"