lseg.out
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:1k
- QUERY: CREATE TABLE LSEG_TBL (s lseg);
- QUERY: INSERT INTO LSEG_TBL VALUES ('[(1,2),(3,4)]');
- QUERY: INSERT INTO LSEG_TBL VALUES ('(0,0),(6,6)');
- QUERY: INSERT INTO LSEG_TBL VALUES ('10,-10 ,-3,-4');
- QUERY: INSERT INTO LSEG_TBL VALUES ('[-1e6,2e2,3e5, -4e1]');
- QUERY: INSERT INTO LSEG_TBL VALUES ('(11,22,33,44)');
- QUERY: INSERT INTO LSEG_TBL VALUES ('(3asdf,2 ,3,4r2)');
- ERROR: Bad lseg external representation '(3asdf,2 ,3,4r2)'
- QUERY: INSERT INTO LSEG_TBL VALUES ('[1,2,3, 4');
- ERROR: Bad lseg external representation '[1,2,3, 4'
- QUERY: INSERT INTO LSEG_TBL VALUES ('[(,2),(3,4)]');
- ERROR: Bad lseg external representation '[(,2),(3,4)]'
- QUERY: INSERT INTO LSEG_TBL VALUES ('[(1,2),(3,4)');
- ERROR: Bad lseg external representation '[(1,2),(3,4)'
- QUERY: select * from LSEG_TBL;
- s
- -----------------------------
- [(1,2),(3,4)]
- [(0,0),(6,6)]
- [(10,-10),(-3,-4)]
- [(-1000000,200),(300000,-40)]
- [(11,22),(33,44)]
- (5 rows)
- QUERY: SELECT * FROM LSEG_TBL WHERE s <= '[(1,2),(3,4)]'::lseg;
- s
- -------------
- [(1,2),(3,4)]
- (1 row)
- QUERY: SELECT * FROM LSEG_TBL WHERE (s <-> '[(1,2),(3,4)]'::lseg) < 10;
- s
- ------------------
- [(1,2),(3,4)]
- [(0,0),(6,6)]
- [(10,-10),(-3,-4)]
- (3 rows)