104 lines
3.4 KiB
SQL
104 lines
3.4 KiB
SQL
--
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-- POINT
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--
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CREATE TABLE POINT_TBL(f1 point);
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INSERT INTO POINT_TBL(f1) VALUES ('(0.0,0.0)');
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INSERT INTO POINT_TBL(f1) VALUES ('(-10.0,0.0)');
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INSERT INTO POINT_TBL(f1) VALUES ('(-3.0,4.0)');
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INSERT INTO POINT_TBL(f1) VALUES ('(5.1, 34.5)');
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INSERT INTO POINT_TBL(f1) VALUES ('(-5.0,-12.0)');
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-- bad format points
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INSERT INTO POINT_TBL(f1) VALUES ('asdfasdf');
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INSERT INTO POINT_TBL(f1) VALUES ('10.0,10.0');
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INSERT INTO POINT_TBL(f1) VALUES ('(10.0 10.0)');
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INSERT INTO POINT_TBL(f1) VALUES ('(10.0,10.0');
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SELECT '' AS six, * FROM POINT_TBL;
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-- left of
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SELECT '' AS three, p.* FROM POINT_TBL p WHERE p.f1 << '(0.0, 0.0)';
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-- right of
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SELECT '' AS three, p.* FROM POINT_TBL p WHERE '(0.0,0.0)' >> p.f1;
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-- above
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SELECT '' AS one, p.* FROM POINT_TBL p WHERE '(0.0,0.0)' >^ p.f1;
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-- below
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SELECT '' AS one, p.* FROM POINT_TBL p WHERE p.f1 <^ '(0.0, 0.0)';
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-- equal
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SELECT '' AS one, p.* FROM POINT_TBL p WHERE p.f1 ~= '(5.1, 34.5)';
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-- point in box
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SELECT '' AS three, p.* FROM POINT_TBL p
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WHERE p.f1 <@ box '(0,0,100,100)';
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SELECT '' AS three, p.* FROM POINT_TBL p
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WHERE box '(0,0,100,100)' @> p.f1;
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SELECT '' AS three, p.* FROM POINT_TBL p
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WHERE not p.f1 <@ box '(0,0,100,100)';
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SELECT '' AS two, p.* FROM POINT_TBL p
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WHERE p.f1 <@ path '[(0,0),(-10,0),(-10,10)]';
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SELECT '' AS three, p.* FROM POINT_TBL p
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WHERE not box '(0,0,100,100)' @> p.f1;
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SELECT '' AS six, p.f1, p.f1 <-> point '(0,0)' AS dist
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FROM POINT_TBL p
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ORDER BY dist;
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SELECT '' AS thirtysix, p1.f1 AS point1, p2.f1 AS point2, p1.f1 <-> p2.f1 AS dist
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FROM POINT_TBL p1, POINT_TBL p2
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ORDER BY dist, p1.f1[0], p2.f1[0];
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SELECT '' AS thirty, p1.f1 AS point1, p2.f1 AS point2
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FROM POINT_TBL p1, POINT_TBL p2
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WHERE (p1.f1 <-> p2.f1) > 3;
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-- put distance result into output to allow sorting with GEQ optimizer - tgl 97/05/10
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SELECT '' AS fifteen, p1.f1 AS point1, p2.f1 AS point2, (p1.f1 <-> p2.f1) AS distance
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FROM POINT_TBL p1, POINT_TBL p2
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WHERE (p1.f1 <-> p2.f1) > 3 and p1.f1 << p2.f1
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ORDER BY distance, p1.f1[0], p2.f1[0];
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-- put distance result into output to allow sorting with GEQ optimizer - tgl 97/05/10
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SELECT '' AS three, p1.f1 AS point1, p2.f1 AS point2, (p1.f1 <-> p2.f1) AS distance
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FROM POINT_TBL p1, POINT_TBL p2
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WHERE (p1.f1 <-> p2.f1) > 3 and p1.f1 << p2.f1 and p1.f1 >^ p2.f1
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ORDER BY distance;
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-- Test that GiST indexes provide same behavior as sequential scan
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CREATE TEMP TABLE point_gist_tbl(f1 point);
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INSERT INTO point_gist_tbl SELECT '(0,0)' FROM generate_series(0,1000);
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CREATE INDEX point_gist_tbl_index ON point_gist_tbl USING gist (f1);
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INSERT INTO point_gist_tbl VALUES ('(0.0000009,0.0000009)');
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SET enable_seqscan TO true;
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SET enable_indexscan TO false;
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SET enable_bitmapscan TO false;
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SELECT COUNT(*) FROM point_gist_tbl WHERE f1 ~= '(0.0000009,0.0000009)'::point;
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SELECT COUNT(*) FROM point_gist_tbl WHERE f1 <@ '(0.0000009,0.0000009),(0.0000009,0.0000009)'::box;
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SELECT COUNT(*) FROM point_gist_tbl WHERE f1 ~= '(0.0000018,0.0000018)'::point;
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SET enable_seqscan TO false;
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SET enable_indexscan TO true;
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SET enable_bitmapscan TO true;
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SELECT COUNT(*) FROM point_gist_tbl WHERE f1 ~= '(0.0000009,0.0000009)'::point;
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SELECT COUNT(*) FROM point_gist_tbl WHERE f1 <@ '(0.0000009,0.0000009),(0.0000009,0.0000009)'::box;
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SELECT COUNT(*) FROM point_gist_tbl WHERE f1 ~= '(0.0000018,0.0000018)'::point;
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RESET enable_seqscan;
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RESET enable_indexscan;
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RESET enable_bitmapscan;
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