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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
LOAD 'age';
SET search_path TO ag_catalog;
-- basic comparisons
SELECT '0'::graphid = '0'::graphid, '0'::graphid = '1'::graphid;
?column? | ?column?
----------+----------
t | f
(1 row)
SELECT '0'::graphid <> '0'::graphid, '0'::graphid <> '1'::graphid;
?column? | ?column?
----------+----------
f | t
(1 row)
SELECT '0'::graphid < '1'::graphid,
'0'::graphid < '0'::graphid,
'1'::graphid < '0'::graphid;
?column? | ?column? | ?column?
----------+----------+----------
t | f | f
(1 row)
SELECT '0'::graphid > '1'::graphid,
'0'::graphid > '0'::graphid,
'1'::graphid > '0'::graphid;
?column? | ?column? | ?column?
----------+----------+----------
f | f | t
(1 row)
SELECT '0'::graphid <= '1'::graphid,
'0'::graphid <= '0'::graphid,
'1'::graphid <= '0'::graphid;
?column? | ?column? | ?column?
----------+----------+----------
t | t | f
(1 row)
SELECT '0'::graphid >= '1'::graphid,
'0'::graphid >= '0'::graphid,
'1'::graphid >= '0'::graphid;
?column? | ?column? | ?column?
----------+----------+----------
f | t | t
(1 row)
-- b-tree index
CREATE TABLE graphid_table (gid graphid);
INSERT INTO graphid_table VALUES ('0'), ('1'), ('2');
CREATE INDEX ON graphid_table (gid);
SET enable_seqscan = OFF;
EXPLAIN (COSTS FALSE) SELECT * FROM graphid_table WHERE gid = '1';
QUERY PLAN
--------------------------------------------------------------
Index Only Scan using graphid_table_gid_idx on graphid_table
Index Cond: (gid = '1'::graphid)
(2 rows)
EXPLAIN (COSTS FALSE) SELECT * FROM graphid_table WHERE gid > '0';
QUERY PLAN
--------------------------------------------------------------
Index Only Scan using graphid_table_gid_idx on graphid_table
Index Cond: (gid > '0'::graphid)
(2 rows)
SET enable_seqscan = ON;
DROP TABLE graphid_table;
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