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ec646dbc65
datatype by array_eq and array_cmp; use this to solve problems with memory leaks in array indexing support. The parser's equality_oper and ordering_oper routines also use the cache. Change the operator search algorithms to look for appropriate btree or hash index opclasses, instead of assuming operators named '<' or '=' have the right semantics. (ORDER BY ASC/DESC now also look at opclasses, instead of assuming '<' and '>' are the right things.) Add several more index opclasses so that there is no regression in functionality for base datatypes. initdb forced due to catalog additions.
155 lines
3.1 KiB
SQL
155 lines
3.1 KiB
SQL
--
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-- GEOMETRY
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--
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-- Back off displayed precision a little bit to reduce platform-to-platform
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-- variation in results.
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SET extra_float_digits TO -3;
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--
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-- Points
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--
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SELECT '' AS four, center(f1) AS center
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FROM BOX_TBL;
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SELECT '' AS four, (@@ f1) AS center
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FROM BOX_TBL;
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SELECT '' AS six, point(f1) AS center
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FROM CIRCLE_TBL;
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SELECT '' AS six, (@@ f1) AS center
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FROM CIRCLE_TBL;
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SELECT '' AS two, (@@ f1) AS center
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FROM POLYGON_TBL
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WHERE (# f1) > 2;
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-- "is horizontal" function
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SELECT '' AS two, p1.f1
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FROM POINT_TBL p1
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WHERE ishorizontal(p1.f1, point '(0,0)');
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-- "is horizontal" operator
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SELECT '' AS two, p1.f1
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FROM POINT_TBL p1
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WHERE p1.f1 ?- point '(0,0)';
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-- "is vertical" function
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SELECT '' AS one, p1.f1
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FROM POINT_TBL p1
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WHERE isvertical(p1.f1, point '(5.1,34.5)');
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-- "is vertical" operator
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SELECT '' AS one, p1.f1
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FROM POINT_TBL p1
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WHERE p1.f1 ?| point '(5.1,34.5)';
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--
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-- Line segments
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--
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-- intersection
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SELECT '' AS count, p.f1, l.s, l.s # p.f1 AS intersection
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FROM LSEG_TBL l, POINT_TBL p;
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-- closest point
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SELECT '' AS thirty, p.f1, l.s, p.f1 ## l.s AS closest
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FROM LSEG_TBL l, POINT_TBL p;
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--
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-- Lines
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--
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--
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-- Boxes
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--
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SELECT '' as six, box(f1) AS box FROM CIRCLE_TBL;
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-- translation
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SELECT '' AS twentyfour, b.f1 + p.f1 AS translation
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FROM BOX_TBL b, POINT_TBL p;
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SELECT '' AS twentyfour, b.f1 - p.f1 AS translation
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FROM BOX_TBL b, POINT_TBL p;
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-- scaling and rotation
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SELECT '' AS twentyfour, b.f1 * p.f1 AS rotation
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FROM BOX_TBL b, POINT_TBL p;
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SELECT '' AS twenty, b.f1 / p.f1 AS rotation
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FROM BOX_TBL b, POINT_TBL p
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WHERE (p.f1 <-> point '(0,0)') >= 1;
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--
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-- Paths
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--
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SET geqo TO 'off';
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SELECT '' AS eight, npoints(f1) AS npoints, f1 AS path FROM PATH_TBL;
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SELECT '' AS four, path(f1) FROM POLYGON_TBL;
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-- translation
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SELECT '' AS eight, p1.f1 + point '(10,10)' AS dist_add
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FROM PATH_TBL p1;
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-- scaling and rotation
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SELECT '' AS eight, p1.f1 * point '(2,-1)' AS dist_mul
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FROM PATH_TBL p1;
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RESET geqo;
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--
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-- Polygons
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--
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-- containment
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SELECT '' AS twentyfour, p.f1, poly.f1, poly.f1 ~ p.f1 AS contains
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FROM POLYGON_TBL poly, POINT_TBL p;
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SELECT '' AS twentyfour, p.f1, poly.f1, p.f1 @ poly.f1 AS contained
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FROM POLYGON_TBL poly, POINT_TBL p;
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SELECT '' AS four, npoints(f1) AS npoints, f1 AS polygon
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FROM POLYGON_TBL;
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SELECT '' AS four, polygon(f1)
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FROM BOX_TBL;
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SELECT '' AS four, polygon(f1)
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FROM PATH_TBL WHERE isclosed(f1);
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SELECT '' AS four, f1 AS open_path, polygon( pclose(f1)) AS polygon
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FROM PATH_TBL
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WHERE isopen(f1);
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-- convert circles to polygons using the default number of points
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SELECT '' AS six, polygon(f1)
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FROM CIRCLE_TBL;
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-- convert the circle to an 8-point polygon
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SELECT '' AS six, polygon(8, f1)
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FROM CIRCLE_TBL;
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--
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-- Circles
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--
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SELECT '' AS six, circle(f1, 50.0)
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FROM POINT_TBL;
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SELECT '' AS four, circle(f1)
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FROM BOX_TBL;
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SELECT '' AS two, circle(f1)
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FROM POLYGON_TBL
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WHERE (# f1) >= 3;
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SELECT '' AS twentyfour, c1.f1 AS circle, p1.f1 AS point, (p1.f1 <-> c1.f1) AS distance
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FROM CIRCLE_TBL c1, POINT_TBL p1
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WHERE (p1.f1 <-> c1.f1) > 0
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ORDER BY distance, circle using <, point using <<;
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