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f5ab0a14ea
in UPDATE. We also now issue a NOTICE if a query has _any_ implicit range table entries -- in the past, we would only warn about implicit RTEs in SELECTs with at least one explicit RTE. As a result of the warning change, 25 of the regression tests had to be updated. I also took the opportunity to remove some bogus whitespace differences between some of the float4 and float8 variants. I believe I have correctly updated all the platform-specific variants, but let me know if that's not the case. Original patch for DELETE ... USING from Euler Taveira de Oliveira, reworked by Neil Conway.
120 lines
2.3 KiB
SQL
120 lines
2.3 KiB
SQL
--
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-- BOX
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--
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--
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-- box logic
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-- o
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-- 3 o--|X
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-- | o|
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-- 2 +-+-+ |
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-- | | | |
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-- 1 | o-+-o
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-- | |
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-- 0 +---+
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--
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-- 0 1 2 3
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--
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-- boxes are specified by two points, given by four floats x1,y1,x2,y2
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CREATE TABLE BOX_TBL (f1 box);
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INSERT INTO BOX_TBL (f1) VALUES ('(2.0,2.0,0.0,0.0)');
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INSERT INTO BOX_TBL (f1) VALUES ('(1.0,1.0,3.0,3.0)');
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-- degenerate cases where the box is a line or a point
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-- note that lines and points boxes all have zero area
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INSERT INTO BOX_TBL (f1) VALUES ('(2.5, 2.5, 2.5,3.5)');
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INSERT INTO BOX_TBL (f1) VALUES ('(3.0, 3.0,3.0,3.0)');
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-- badly formatted box inputs
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INSERT INTO BOX_TBL (f1) VALUES ('(2.3, 4.5)');
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INSERT INTO BOX_TBL (f1) VALUES ('asdfasdf(ad');
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SELECT '' AS four, * FROM BOX_TBL;
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SELECT '' AS four, b.*, area(b.f1) as barea
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FROM BOX_TBL b;
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-- overlap
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SELECT '' AS three, b.f1
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FROM BOX_TBL b
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WHERE b.f1 && box '(2.5,2.5,1.0,1.0)';
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-- left-or-overlap (x only)
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SELECT '' AS two, b1.*
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FROM BOX_TBL b1
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WHERE b1.f1 &< box '(2.0,2.0,2.5,2.5)';
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-- right-or-overlap (x only)
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SELECT '' AS two, b1.*
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FROM BOX_TBL b1
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WHERE b1.f1 &> box '(2.0,2.0,2.5,2.5)';
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-- left of
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SELECT '' AS two, b.f1
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FROM BOX_TBL b
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WHERE b.f1 << box '(3.0,3.0,5.0,5.0)';
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-- area <=
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SELECT '' AS four, b.f1
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FROM BOX_TBL b
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WHERE b.f1 <= box '(3.0,3.0,5.0,5.0)';
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-- area <
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SELECT '' AS two, b.f1
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FROM BOX_TBL b
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WHERE b.f1 < box '(3.0,3.0,5.0,5.0)';
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-- area =
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SELECT '' AS two, b.f1
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FROM BOX_TBL b
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WHERE b.f1 = box '(3.0,3.0,5.0,5.0)';
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-- area >
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SELECT '' AS two, b.f1
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FROM BOX_TBL b -- zero area
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WHERE b.f1 > box '(3.5,3.0,4.5,3.0)';
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-- area >=
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SELECT '' AS four, b.f1
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FROM BOX_TBL b -- zero area
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WHERE b.f1 >= box '(3.5,3.0,4.5,3.0)';
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-- right of
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SELECT '' AS two, b.f1
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FROM BOX_TBL b
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WHERE box '(3.0,3.0,5.0,5.0)' >> b.f1;
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-- contained in
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SELECT '' AS three, b.f1
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FROM BOX_TBL b
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WHERE b.f1 @ box '(0,0,3,3)';
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-- contains
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SELECT '' AS three, b.f1
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FROM BOX_TBL b
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WHERE box '(0,0,3,3)' ~ b.f1;
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-- box equality
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SELECT '' AS one, b.f1
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FROM BOX_TBL b
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WHERE box '(1,1,3,3)' ~= b.f1;
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-- center of box, left unary operator
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SELECT '' AS four, @@(b1.f1) AS p
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FROM BOX_TBL b1;
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-- wholly-contained
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SELECT '' AS one, b1.*, b2.*
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FROM BOX_TBL b1, BOX_TBL b2
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WHERE b1.f1 ~ b2.f1 and not b1.f1 ~= b2.f1;
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SELECT '' AS four, height(f1), width(f1) FROM BOX_TBL;
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