-- inet check CREATE TABLE inettmp (a inet); \copy inettmp from 'data/inet.data' SET enable_seqscan=on; SELECT count(*) FROM inettmp WHERE a < '89.225.196.191'; count ------- 213 (1 row) SELECT count(*) FROM inettmp WHERE a <= '89.225.196.191'; count ------- 214 (1 row) SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'; count ------- 1 (1 row) SELECT count(*) FROM inettmp WHERE a >= '89.225.196.191'; count ------- 387 (1 row) SELECT count(*) FROM inettmp WHERE a > '89.225.196.191'; count ------- 386 (1 row) SET client_min_messages = DEBUG1; CREATE INDEX inetidx ON inettmp USING gist ( a ); DEBUG: building index "inetidx" on table "inettmp" serially DEBUG: using sorted GiST build CREATE INDEX inetidx_b ON inettmp USING gist ( a ) WITH (buffering=on); DEBUG: building index "inetidx_b" on table "inettmp" serially DROP INDEX inetidx_b; RESET client_min_messages; SET enable_seqscan=off; SELECT count(*) FROM inettmp WHERE a < '89.225.196.191'::inet; count ------- 213 (1 row) SELECT count(*) FROM inettmp WHERE a <= '89.225.196.191'::inet; count ------- 214 (1 row) SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet; count ------- 1 (1 row) SELECT count(*) FROM inettmp WHERE a >= '89.225.196.191'::inet; count ------- 387 (1 row) SELECT count(*) FROM inettmp WHERE a > '89.225.196.191'::inet; count ------- 386 (1 row) VACUUM ANALYZE inettmp; -- gist_inet_ops lacks a fetch function, so this should not be index-only scan EXPLAIN (COSTS OFF) SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet; QUERY PLAN -------------------------------------------------- Aggregate -> Index Scan using inetidx on inettmp Index Cond: (a = '89.225.196.191'::inet) (3 rows) SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet; count ------- 1 (1 row) DROP INDEX inetidx; CREATE INDEX ON inettmp USING gist (a gist_inet_ops, a inet_ops); -- likewise here (checks for core planner bug) EXPLAIN (COSTS OFF) SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet; QUERY PLAN ---------------------------------------------------- Aggregate -> Index Scan using inettmp_a_a1_idx on inettmp Index Cond: (a = '89.225.196.191'::inet) (3 rows) SELECT count(*) FROM inettmp WHERE a = '89.225.196.191'::inet; count ------- 1 (1 row)