explain analyze SELECT * FROM highrate_log_entry
WHERE 
test_seq_number > 26668670
and udc = '2424'
AND (test_signal_number = 'D2048'
)
ORDER BY test_seq_number LIMIT 11

QUERY PLAN
Limit  (cost=107017.91..107017.94 rows=11 width=61) (actual time=2102.129..2102.152 rows=11 loops=1)
  ->  Sort  (cost=107017.91..107112.96 rows=38021 width=61) (actual time=2102.126..2102.133 rows=11 loops=1)
        Sort Key: public.highrate_log_entry.test_seq_number
        Sort Method:  top-N heapsort  Memory: 18kB
        ->  Result  (cost=0.00..106170.15 rows=38021 width=61) (actual time=1428.960..2066.815 rows=26497 loops=1)
              ->  Append  (cost=0.00..106170.15 rows=38021 width=61) (actual time=1428.957..2024.959 rows=26497 loops=1)
                    ->  Index Scan using high_rate_index on highrate_log_entry  (cost=0.00..8.27 rows=1 width=145) (actual time=0.006..0.006 rows=0 loops=1)
                          Index Cond: ((udc = 2424::numeric) AND ((test_signal_number)::text = 'D2048'::text))
                          Filter: (test_seq_number > 26668670::numeric)
                    ->  Index Scan using highrate_log_entry_2424_2009_pkey on highrate_log_entry_2424_2009 highrate_log_entry  (cost=0.00..3734.01 rows=22 width=60) (actual time=0.017..0.017 rows=0 loops=1)
                          Index Cond: ((udc = 2424::numeric) AND (test_seq_number > 26668670::numeric))
                          Filter: ((test_signal_number)::text = 'D2048'::text)
                    ->  Bitmap Heap Scan on highrate_log_entry_2424_2010 highrate_log_entry  (cost=2600.42..102427.87 rows=37998 width=61) (actual time=1428.928..1987.050 rows=26497 loops=1)
                          Recheck Cond: ((udc = 2424::numeric) AND ((test_signal_number)::text = 'D2048'::text))
                          Filter: (test_seq_number > 26668670::numeric)
                          ->  Bitmap Index Scan on highrate_log_entry_2424_2010_udc_key  (cost=0.00..2590.92 rows=93311 width=0) (actual time=370.824..370.824 rows=90282 loops=1)
                                Index Cond: ((udc = 2424::numeric) AND ((test_signal_number)::text = 'D2048'::text))
Total runtime: 2102.291 ms