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31edbadf4a
from the other string-category types; this eliminates a lot of surprising interpretations that the parser could formerly make when there was no directly applicable operator. Create a general mechanism that supports casts to and from the standard string types (text,varchar,bpchar) for *every* datatype, by invoking the datatype's I/O functions. These new casts are assignment-only in the to-string direction, explicit-only in the other, and therefore should create no surprising behavior. Remove a bunch of thereby-obsoleted datatype-specific casting functions. The "general mechanism" is a new expression node type CoerceViaIO that can actually convert between *any* two datatypes if their external text representations are compatible. This is more general than needed for the immediate feature, but might be useful in plpgsql or other places in future. This commit does nothing about the issue that applying the concatenation operator || to non-text types will now fail, often with strange error messages due to misinterpreting the operator as array concatenation. Since it often (not always) worked before, we should either make it succeed or at least give a more user-friendly error; but details are still under debate. Peter Eisentraut and Tom Lane
288 lines
11 KiB
PL/PgSQL
288 lines
11 KiB
PL/PgSQL
--
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-- Test cube datatype
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--
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--
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-- first, define the datatype. Turn off echoing so that expected file
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-- does not depend on contents of cube.sql.
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--
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SET client_min_messages = warning;
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\set ECHO none
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\i cube.sql
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\set ECHO all
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RESET client_min_messages;
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--
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-- testing the input and output functions
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--
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-- Any number (a one-dimensional point)
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SELECT '1'::cube AS cube;
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SELECT '-1'::cube AS cube;
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SELECT '1.'::cube AS cube;
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SELECT '-1.'::cube AS cube;
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SELECT '.1'::cube AS cube;
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SELECT '-.1'::cube AS cube;
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SELECT '1.0'::cube AS cube;
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SELECT '-1.0'::cube AS cube;
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SELECT '1e27'::cube AS cube;
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SELECT '-1e27'::cube AS cube;
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SELECT '1.0e27'::cube AS cube;
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SELECT '-1.0e27'::cube AS cube;
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SELECT '1e+27'::cube AS cube;
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SELECT '-1e+27'::cube AS cube;
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SELECT '1.0e+27'::cube AS cube;
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SELECT '-1.0e+27'::cube AS cube;
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SELECT '1e-7'::cube AS cube;
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SELECT '-1e-7'::cube AS cube;
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SELECT '1.0e-7'::cube AS cube;
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SELECT '-1.0e-7'::cube AS cube;
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SELECT '1e-700'::cube AS cube;
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SELECT '-1e-700'::cube AS cube;
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SELECT '1234567890123456'::cube AS cube;
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SELECT '+1234567890123456'::cube AS cube;
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SELECT '-1234567890123456'::cube AS cube;
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SELECT '.1234567890123456'::cube AS cube;
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SELECT '+.1234567890123456'::cube AS cube;
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SELECT '-.1234567890123456'::cube AS cube;
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-- simple lists (points)
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SELECT '1,2'::cube AS cube;
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SELECT '(1,2)'::cube AS cube;
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SELECT '1,2,3,4,5'::cube AS cube;
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SELECT '(1,2,3,4,5)'::cube AS cube;
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-- double lists (cubes)
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SELECT '(0),(0)'::cube AS cube;
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SELECT '(0),(1)'::cube AS cube;
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SELECT '[(0),(0)]'::cube AS cube;
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SELECT '[(0),(1)]'::cube AS cube;
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SELECT '(0,0,0,0),(0,0,0,0)'::cube AS cube;
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SELECT '(0,0,0,0),(1,0,0,0)'::cube AS cube;
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SELECT '[(0,0,0,0),(0,0,0,0)]'::cube AS cube;
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SELECT '[(0,0,0,0),(1,0,0,0)]'::cube AS cube;
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-- invalid input: parse errors
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SELECT ''::cube AS cube;
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SELECT 'ABC'::cube AS cube;
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SELECT '()'::cube AS cube;
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SELECT '[]'::cube AS cube;
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SELECT '[()]'::cube AS cube;
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SELECT '[(1)]'::cube AS cube;
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SELECT '[(1),]'::cube AS cube;
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SELECT '[(1),2]'::cube AS cube;
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SELECT '[(1),(2),(3)]'::cube AS cube;
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SELECT '1,'::cube AS cube;
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SELECT '1,2,'::cube AS cube;
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SELECT '1,,2'::cube AS cube;
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SELECT '(1,)'::cube AS cube;
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SELECT '(1,2,)'::cube AS cube;
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SELECT '(1,,2)'::cube AS cube;
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-- invalid input: semantic errors and trailing garbage
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SELECT '[(1),(2)],'::cube AS cube; -- 0
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SELECT '[(1,2,3),(2,3)]'::cube AS cube; -- 1
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SELECT '[(1,2),(1,2,3)]'::cube AS cube; -- 1
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SELECT '(1),(2),'::cube AS cube; -- 2
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SELECT '(1,2,3),(2,3)'::cube AS cube; -- 3
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SELECT '(1,2),(1,2,3)'::cube AS cube; -- 3
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SELECT '(1,2,3)ab'::cube AS cube; -- 4
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SELECT '(1,2,3)a'::cube AS cube; -- 5
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SELECT '(1,2)('::cube AS cube; -- 5
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SELECT '1,2ab'::cube AS cube; -- 6
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SELECT '1 e7'::cube AS cube; -- 6
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SELECT '1,2a'::cube AS cube; -- 7
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SELECT '1..2'::cube AS cube; -- 7
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--
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-- Testing building cubes from float8 values
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--
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SELECT cube(0::float8);
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SELECT cube(1::float8);
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SELECT cube(1,2);
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SELECT cube(cube(1,2),3);
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SELECT cube(cube(1,2),3,4);
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SELECT cube(cube(cube(1,2),3,4),5);
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SELECT cube(cube(cube(1,2),3,4),5,6);
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--
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-- Test that the text -> cube cast was installed.
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--
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SELECT '(0)'::text::cube;
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--
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-- Test the float[] -> cube cast
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--
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SELECT cube('{0,1,2}'::float[], '{3,4,5}'::float[]);
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SELECT cube('{0,1,2}'::float[], '{3}'::float[]);
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SELECT cube(NULL::float[], '{3}'::float[]);
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SELECT cube('{0,1,2}'::float[]);
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SELECT cube_subset(cube('(1,3,5),(6,7,8)'), ARRAY[3,2,1,1]);
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SELECT cube_subset(cube('(1,3,5),(6,7,8)'), ARRAY[4,0]);
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--
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-- Testing limit of CUBE_MAX_DIM dimensions check in cube_in.
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--
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select '(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)'::cube;
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select '(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)'::cube;
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--
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-- testing the operators
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--
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-- equality/inequality:
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--
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SELECT '24, 33.20'::cube = '24, 33.20'::cube AS bool;
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SELECT '24, 33.20'::cube != '24, 33.20'::cube AS bool;
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SELECT '24, 33.20'::cube = '24, 33.21'::cube AS bool;
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SELECT '24, 33.20'::cube != '24, 33.21'::cube AS bool;
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SELECT '(2,0),(3,1)'::cube = '(2,0,0,0,0),(3,1,0,0,0)'::cube AS bool;
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SELECT '(2,0),(3,1)'::cube = '(2,0,0,0,0),(3,1,0,0,1)'::cube AS bool;
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-- "lower than" / "greater than"
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-- (these operators are not useful for anything but ordering)
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--
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SELECT '1'::cube > '2'::cube AS bool;
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SELECT '1'::cube < '2'::cube AS bool;
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SELECT '1,1'::cube > '1,2'::cube AS bool;
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SELECT '1,1'::cube < '1,2'::cube AS bool;
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SELECT '(2,0),(3,1)'::cube > '(2,0,0,0,0),(3,1,0,0,1)'::cube AS bool;
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SELECT '(2,0),(3,1)'::cube < '(2,0,0,0,0),(3,1,0,0,1)'::cube AS bool;
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SELECT '(2,0),(3,1)'::cube > '(2,0,0,0,1),(3,1,0,0,0)'::cube AS bool;
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SELECT '(2,0),(3,1)'::cube < '(2,0,0,0,1),(3,1,0,0,0)'::cube AS bool;
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SELECT '(2,0),(3,1)'::cube > '(2,0,0,0,0),(3,1,0,0,0)'::cube AS bool;
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SELECT '(2,0),(3,1)'::cube < '(2,0,0,0,0),(3,1,0,0,0)'::cube AS bool;
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SELECT '(2,0,0,0,0),(3,1,0,0,1)'::cube > '(2,0),(3,1)'::cube AS bool;
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SELECT '(2,0,0,0,0),(3,1,0,0,1)'::cube < '(2,0),(3,1)'::cube AS bool;
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SELECT '(2,0,0,0,1),(3,1,0,0,0)'::cube > '(2,0),(3,1)'::cube AS bool;
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SELECT '(2,0,0,0,1),(3,1,0,0,0)'::cube < '(2,0),(3,1)'::cube AS bool;
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SELECT '(2,0,0,0,0),(3,1,0,0,0)'::cube > '(2,0),(3,1)'::cube AS bool;
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SELECT '(2,0,0,0,0),(3,1,0,0,0)'::cube < '(2,0),(3,1)'::cube AS bool;
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-- "overlap"
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--
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SELECT '1'::cube && '1'::cube AS bool;
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SELECT '1'::cube && '2'::cube AS bool;
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SELECT '[(-1,-1,-1),(1,1,1)]'::cube && '0'::cube AS bool;
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SELECT '[(-1,-1,-1),(1,1,1)]'::cube && '1'::cube AS bool;
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SELECT '[(-1,-1,-1),(1,1,1)]'::cube && '1,1,1'::cube AS bool;
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SELECT '[(-1,-1,-1),(1,1,1)]'::cube && '[(1,1,1),(2,2,2)]'::cube AS bool;
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SELECT '[(-1,-1,-1),(1,1,1)]'::cube && '[(1,1),(2,2)]'::cube AS bool;
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SELECT '[(-1,-1,-1),(1,1,1)]'::cube && '[(2,1,1),(2,2,2)]'::cube AS bool;
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-- "contained in" (the left operand is the cube entirely enclosed by
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-- the right operand):
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--
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SELECT '0'::cube <@ '0'::cube AS bool;
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SELECT '0,0,0'::cube <@ '0,0,0'::cube AS bool;
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SELECT '0,0'::cube <@ '0,0,1'::cube AS bool;
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SELECT '0,0,0'::cube <@ '0,0,1'::cube AS bool;
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SELECT '1,0,0'::cube <@ '0,0,1'::cube AS bool;
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SELECT '(1,0,0),(0,0,1)'::cube <@ '(1,0,0),(0,0,1)'::cube AS bool;
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SELECT '(1,0,0),(0,0,1)'::cube <@ '(-1,-1,-1),(1,1,1)'::cube AS bool;
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SELECT '(1,0,0),(0,0,1)'::cube <@ '(-1,-1,-1,-1),(1,1,1,1)'::cube AS bool;
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SELECT '0'::cube <@ '(-1),(1)'::cube AS bool;
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SELECT '1'::cube <@ '(-1),(1)'::cube AS bool;
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SELECT '-1'::cube <@ '(-1),(1)'::cube AS bool;
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SELECT '(-1),(1)'::cube <@ '(-1),(1)'::cube AS bool;
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SELECT '(-1),(1)'::cube <@ '(-1,-1),(1,1)'::cube AS bool;
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SELECT '(-2),(1)'::cube <@ '(-1),(1)'::cube AS bool;
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SELECT '(-2),(1)'::cube <@ '(-1,-1),(1,1)'::cube AS bool;
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-- "contains" (the left operand is the cube that entirely encloses the
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-- right operand)
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--
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SELECT '0'::cube @> '0'::cube AS bool;
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SELECT '0,0,0'::cube @> '0,0,0'::cube AS bool;
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SELECT '0,0,1'::cube @> '0,0'::cube AS bool;
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SELECT '0,0,1'::cube @> '0,0,0'::cube AS bool;
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SELECT '0,0,1'::cube @> '1,0,0'::cube AS bool;
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SELECT '(1,0,0),(0,0,1)'::cube @> '(1,0,0),(0,0,1)'::cube AS bool;
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SELECT '(-1,-1,-1),(1,1,1)'::cube @> '(1,0,0),(0,0,1)'::cube AS bool;
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SELECT '(-1,-1,-1,-1),(1,1,1,1)'::cube @> '(1,0,0),(0,0,1)'::cube AS bool;
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SELECT '(-1),(1)'::cube @> '0'::cube AS bool;
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SELECT '(-1),(1)'::cube @> '1'::cube AS bool;
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SELECT '(-1),(1)'::cube @> '-1'::cube AS bool;
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SELECT '(-1),(1)'::cube @> '(-1),(1)'::cube AS bool;
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SELECT '(-1,-1),(1,1)'::cube @> '(-1),(1)'::cube AS bool;
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SELECT '(-1),(1)'::cube @> '(-2),(1)'::cube AS bool;
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SELECT '(-1,-1),(1,1)'::cube @> '(-2),(1)'::cube AS bool;
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-- Test of distance function
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--
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SELECT cube_distance('(0)'::cube,'(2,2,2,2)'::cube);
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SELECT cube_distance('(0)'::cube,'(.3,.4)'::cube);
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-- Test of cube function (text to cube)
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--
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SELECT cube('(1,1.2)'::text);
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SELECT cube(NULL);
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-- Test of cube_dim function (dimensions stored in cube)
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--
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SELECT cube_dim('(0)'::cube);
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SELECT cube_dim('(0,0)'::cube);
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SELECT cube_dim('(0,0,0)'::cube);
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-- Test of cube_ll_coord function (retrieves LL coodinate values)
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--
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SELECT cube_ll_coord('(-1,1),(2,-2)'::cube, 1);
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SELECT cube_ll_coord('(-1,1),(2,-2)'::cube, 2);
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SELECT cube_ll_coord('(-1,1),(2,-2)'::cube, 3);
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-- Test of cube_ur_coord function (retrieves UR coodinate values)
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--
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SELECT cube_ur_coord('(-1,1),(2,-2)'::cube, 1);
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SELECT cube_ur_coord('(-1,1),(2,-2)'::cube, 2);
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SELECT cube_ur_coord('(-1,1),(2,-2)'::cube, 3);
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-- Test of cube_is_point
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--
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SELECT cube_is_point('(0)'::cube);
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SELECT cube_is_point('(0,1,2)'::cube);
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SELECT cube_is_point('(0,1,2),(0,1,2)'::cube);
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SELECT cube_is_point('(0,1,2),(-1,1,2)'::cube);
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SELECT cube_is_point('(0,1,2),(0,-1,2)'::cube);
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SELECT cube_is_point('(0,1,2),(0,1,-2)'::cube);
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-- Test of cube_enlarge (enlarging and shrinking cubes)
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--
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SELECT cube_enlarge('(0)'::cube, 0, 0);
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SELECT cube_enlarge('(0)'::cube, 0, 1);
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SELECT cube_enlarge('(0)'::cube, 0, 2);
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SELECT cube_enlarge('(2),(-2)'::cube, 0, 4);
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SELECT cube_enlarge('(0)'::cube, 1, 0);
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SELECT cube_enlarge('(0)'::cube, 1, 1);
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SELECT cube_enlarge('(0)'::cube, 1, 2);
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SELECT cube_enlarge('(2),(-2)'::cube, 1, 4);
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SELECT cube_enlarge('(0)'::cube, -1, 0);
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SELECT cube_enlarge('(0)'::cube, -1, 1);
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SELECT cube_enlarge('(0)'::cube, -1, 2);
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SELECT cube_enlarge('(2),(-2)'::cube, -1, 4);
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SELECT cube_enlarge('(0,0,0)'::cube, 1, 0);
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SELECT cube_enlarge('(0,0,0)'::cube, 1, 2);
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SELECT cube_enlarge('(2,-2),(-3,7)'::cube, 1, 2);
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SELECT cube_enlarge('(2,-2),(-3,7)'::cube, 3, 2);
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SELECT cube_enlarge('(2,-2),(-3,7)'::cube, -1, 2);
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SELECT cube_enlarge('(2,-2),(-3,7)'::cube, -3, 2);
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-- Load some example data and build the index
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--
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CREATE TABLE test_cube (c cube);
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\copy test_cube from 'data/test_cube.data'
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CREATE INDEX test_cube_ix ON test_cube USING gist (c);
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SELECT * FROM test_cube WHERE c && '(3000,1000),(0,0)' ORDER BY c;
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-- Test sorting
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SELECT * FROM test_cube WHERE c && '(3000,1000),(0,0)' GROUP BY c ORDER BY c;
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