Limit (cost=0.00..0.08 rows=2 width=36)
-> Index Scan Backward using w on x (cost=0.00..5770.49 rows=149976 width=36)
Limit (cost=0.00..0.08 rows=2 width=36)
-> Index Scan Backward using w on x (cost=0.00..5770.49 rows=149976 width=36)