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explain (costs off) select * from ranges where prefix @> '0146640123';
QUERY PLAN
------------------------------------------------------------
Bitmap Heap Scan on ranges
Recheck Cond: (prefix @> '0146640123'::prefix_range)
-> Bitmap Index Scan on idx_prefix
Index Cond: (prefix @> '0146640123'::prefix_range)
(4 rows)
explain (costs off) select * from ranges where prefix @> '0146640123' order by length(prefix) desc limit 1;
QUERY PLAN
------------------------------------------------------------------------
Limit
-> Sort
Sort Key: (length(prefix)) DESC
-> Bitmap Heap Scan on ranges
Recheck Cond: (prefix @> '0146640123'::prefix_range)
-> Bitmap Index Scan on idx_prefix
Index Cond: (prefix @> '0146640123'::prefix_range)
(7 rows)
explain (costs off) select * from ranges where prefix @> '0100091234';
QUERY PLAN
------------------------------------------------------------
Bitmap Heap Scan on ranges
Recheck Cond: (prefix @> '0100091234'::prefix_range)
-> Bitmap Index Scan on idx_prefix
Index Cond: (prefix @> '0100091234'::prefix_range)
(4 rows)
explain (costs off) select * from ranges where prefix @> '0100091234' order by length(prefix) desc limit 1;
QUERY PLAN
------------------------------------------------------------------------
Limit
-> Sort
Sort Key: (length(prefix)) DESC
-> Bitmap Heap Scan on ranges
Recheck Cond: (prefix @> '0100091234'::prefix_range)
-> Bitmap Index Scan on idx_prefix
Index Cond: (prefix @> '0100091234'::prefix_range)
(7 rows)
explain (costs off) select * from numbers n join ranges r on r.prefix @> n.number;
QUERY PLAN
----------------------------------------------------------
Nested Loop
-> Seq Scan on numbers n
-> Index Scan using idx_prefix on ranges r
Index Cond: (prefix @> (n.number)::prefix_range)
(4 rows)
explain (costs off) select count(*) from tst where pref <@ '55';
QUERY PLAN
--------------------------------------------------------
Aggregate
-> Bitmap Heap Scan on tst
Recheck Cond: (pref <@ '55'::prefix_range)
-> Bitmap Index Scan on tst_ix
Index Cond: (pref <@ '55'::prefix_range)
(5 rows)
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