53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
--
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-- LSEG
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-- Line segments
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--
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--DROP TABLE LSEG_TBL;
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CREATE TABLE LSEG_TBL (s lseg);
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INSERT INTO LSEG_TBL VALUES ('[(1,2),(3,4)]');
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INSERT INTO LSEG_TBL VALUES ('(0,0),(6,6)');
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INSERT INTO LSEG_TBL VALUES ('10,-10 ,-3,-4');
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INSERT INTO LSEG_TBL VALUES ('[-1e6,2e2,3e5, -4e1]');
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INSERT INTO LSEG_TBL VALUES ('(11,22,33,44)');
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-- bad values for parser testing
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INSERT INTO LSEG_TBL VALUES ('(3asdf,2 ,3,4r2)');
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ERROR: invalid input syntax for type lseg: "(3asdf,2 ,3,4r2)"
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LINE 1: INSERT INTO LSEG_TBL VALUES ('(3asdf,2 ,3,4r2)');
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^
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INSERT INTO LSEG_TBL VALUES ('[1,2,3, 4');
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ERROR: invalid input syntax for type lseg: "[1,2,3, 4"
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LINE 1: INSERT INTO LSEG_TBL VALUES ('[1,2,3, 4');
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^
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INSERT INTO LSEG_TBL VALUES ('[(,2),(3,4)]');
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ERROR: invalid input syntax for type lseg: "[(,2),(3,4)]"
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LINE 1: INSERT INTO LSEG_TBL VALUES ('[(,2),(3,4)]');
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^
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INSERT INTO LSEG_TBL VALUES ('[(1,2),(3,4)');
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ERROR: invalid input syntax for type lseg: "[(1,2),(3,4)"
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LINE 1: INSERT INTO LSEG_TBL VALUES ('[(1,2),(3,4)');
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^
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select * from LSEG_TBL;
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s
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-------------------------------
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[(1,2),(3,4)]
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[(0,0),(6,6)]
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[(10,-10),(-3,-4)]
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[(-1000000,200),(300000,-40)]
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[(11,22),(33,44)]
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(5 rows)
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SELECT * FROM LSEG_TBL WHERE s <= lseg '[(1,2),(3,4)]';
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s
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---------------
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[(1,2),(3,4)]
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(1 row)
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SELECT * FROM LSEG_TBL WHERE (s <-> lseg '[(1,2),(3,4)]') < 10;
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s
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--------------------
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[(1,2),(3,4)]
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[(0,0),(6,6)]
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[(10,-10),(-3,-4)]
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(3 rows)
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