┌──────────────────────────────────────┐
│SELECT *                                                                    │
│    FROM "pg_stat_all_indexes"                                              │
│    WHERE "schemaname" = 'public';                                          │
├──────────────────────────────────────┤
│SELECT *                                                                    │
│    FROM "pg_statio_all_indexes"                                            │
│    WHERE "schemaname" = 'public';                                          │
└──────────────────────────────────────┘
基本は上記の二つ。

これを編集すると以下のような感じ。
┌──────────────────────────────────────┐
│SELECT "pg_stat_all_indexes"."relid",                                       │
│       "pg_stat_all_indexes"."indexrelid",                                  │
│       "pg_stat_all_indexes"."schemaname",                                  │
│       "pg_stat_all_indexes"."relname",                                     │
│       "pg_stat_all_indexes"."indexrelname",                                │
│       "pg_stat_all_indexes"."idx_scan",                                    │
│       "pg_stat_all_indexes"."idx_tup_read",                                │
│       "pg_stat_all_indexes"."idx_tup_fetch",                               │
│       "pg_statio_all_indexes"."idx_blks_read",                             │
│       "pg_statio_all_indexes"."idx_blks_hit"                               │
│    FROM "pg_stat_all_indexes",                                             │
│         "pg_statio_all_indexes"                                            │
│    WHERE "pg_stat_all_indexes"."indexrelid"                                │
│                                      = "pg_statio_all_indexes"."indexrelid"│
│      AND "pg_stat_all_indexes"."schemaname" = 'public'                     │
│    ORDER BY "pg_stat_all_indexes"."relname"      ASC,                      │
│             "pg_stat_all_indexes"."indexrelname" ASC;                      │
└──────────────────────────────────────┘