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118 lines
2.6 KiB
MySQL
118 lines
2.6 KiB
MySQL
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-- *************testing built-in type polygon ****************
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--
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-- polygon logic
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--
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-- 3 o
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-- |
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-- 2 + |
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-- / |
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-- 1 # o +
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-- / |
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-- 0 #-----o-+
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--
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-- 0 1 2 3 4
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--
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CREATE TABLE POLYGON_TBL(f1 polygon);
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INSERT INTO POLYGON_TBL(f1) VALUES ('(2.0,2.0,0.0,0.0,4.0,0.0)');
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INSERT INTO POLYGON_TBL(f1) VALUES ('(3.0,3.0,1.0,1.0,3.0,0.0)');
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-- degenerate polygons
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INSERT INTO POLYGON_TBL(f1) VALUES ('(0.0,0.0)');
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INSERT INTO POLYGON_TBL(f1) VALUES ('(0.0,0.0,1.0,1.0)');
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-- bad polygon input strings
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INSERT INTO POLYGON_TBL(f1) VALUES ('0.0');
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INSERT INTO POLYGON_TBL(f1) VALUES ('(0.0 0.0');
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INSERT INTO POLYGON_TBL(f1) VALUES ('(0,1,2)');
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INSERT INTO POLYGON_TBL(f1) VALUES ('(0,1,2,3');
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INSERT INTO POLYGON_TBL(f1) VALUES ('asdf');
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SELECT '' AS four, POLYGON_TBL.*;
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-- overlap
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SELECT '' AS three, p.*
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FROM POLYGON_TBL p
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WHERE p.f1 && '(3.0,3.0,1.0,1.0,3.0,0.0)';
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-- left overlap
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SELECT '' AS four, p.*
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FROM POLYGON_TBL p
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WHERE p.f1 &< '(3.0,3.0,1.0,1.0,3.0,0.0)';
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-- right overlap
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SELECT '' AS two, p.*
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FROM POLYGON_TBL p
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WHERE p.f1 &> '(3.0,3.0,1.0,1.0,3.0,0.0)';
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-- left of
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SELECT '' AS one, p.*
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FROM POLYGON_TBL p
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WHERE p.f1 << '(3.0,3.0,1.0,1.0,3.0,0.0)';
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-- right of
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SELECT '' AS zero, p.*
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FROM POLYGON_TBL p
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WHERE p.f1 >> '(3.0,3.0,1.0,1.0,3.0,0.0)';
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-- contained
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SELECT '' AS one, p.*
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FROM POLYGON_TBL p
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WHERE p.f1 @ '(3.0,3.0,1.0,1.0,3.0,0.0)';
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-- same
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SELECT '' AS one, p.*
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FROM POLYGON_TBL p
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WHERE p.f1 ~= '(3.0,3.0,1.0,1.0,3.0,0.0)';
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-- contains
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SELECT '' AS one, p.*
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FROM POLYGON_TBL p
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WHERE p.f1 ~ '(3.0,3.0,1.0,1.0,3.0,0.0)';
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--
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-- polygon logic
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--
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-- 3 o
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-- |
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-- 2 + |
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-- / |
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-- 1 / o +
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-- / |
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-- 0 +-----o-+
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--
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-- 0 1 2 3 4
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--
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-- left of
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SELECT '(2.0,2.0,0.0,0.0,4.0,0.0)'::polygon << '(3.0,3.0,1.0,1.0,3.0,0.0)'::polygon AS false;
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-- left overlap
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SELECT '(2.0,2.0,0.0,0.0,4.0,0.0)'::polygon &< '(3.0,3.0,1.0,1.0,3.0,0.0)'::polygon AS true;
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-- right overlap
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SELECT '(2.0,2.0,0.0,0.0,4.0,0.0)'::polygon &> '(3.0,3.0,1.0,1.0,3.0,0.0)'::polygon AS true;
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-- right of
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SELECT '(2.0,2.0,0.0,0.0,4.0,0.0)'::polygon >> '(3.0,3.0,1.0,1.0,3.0,0.0)'::polygon AS false;
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-- contained in
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SELECT '(2.0,2.0,0.0,0.0,4.0,0.0)'::polygon @ '(3.0,3.0,1.0,1.0,3.0,0.0)'::polygon AS false;
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-- contains
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SELECT '(2.0,2.0,0.0,0.0,4.0,0.0)'::polygon ~ '(3.0,3.0,1.0,1.0,3.0,0.0)'::polygon AS false;
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-- same
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SELECT '(2.0,2.0,0.0,0.0,4.0,0.0)'::polygon ~= '(3.0,3.0,1.0,1.0,3.0,0.0)'::polygon AS false;
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-- overlap
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SELECT '(2.0,2.0,0.0,0.0,4.0,0.0)'::polygon && '(3.0,3.0,1.0,1.0,3.0,0.0)'::polygon AS true;
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