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From: Darren King <darrenk@insightdist.com>

Browse Source 
Seem to remember someone posting to one of the lists a while back
that the tutorial code wouldn't compile and/or run.  Found four
problems with it that will let it run.

1. Tutorial makefile had a recursive use of DLOBJS.

2. Some tutorial needed semi-colons added to many statements.

3. Complex tutorial didn't clean up after itself.

4. Advanced had a time-travel example.  Commented it out and
   put a line pointing the user to contrib/spi/README.
This commit is contained in:
Marc G. Fournier
1998-02-28 23:37:10 +00:00
parent bc58c5867d
commit 5b3e78afe3
4 changed files with 72 additions and 49 deletions
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45
src/tutorial/complex.source
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@ -7,7 +7,7 @@
--
-- Copyright (c) 1994, Regents of the University of California
--
-- $Id: complex.source,v 1.2 1996/12/28 02:22:07 momjian Exp $
-- $Id: complex.source,v 1.3 1998/02/28 23:37:09 scrappy Exp $
--
---------------------------------------------------------------------------
@ -64,8 +64,8 @@ CREATE TABLE test_complex (
-- data for user-defined type are just strings in the proper textual
-- representation.
INSERT INTO test_complex VALUES ('(1.0, 2.5)', '(4.2, 3.55 )')
INSERT INTO test_complex VALUES ('(33.0, 51.4)', '(100.42, 93.55)')
INSERT INTO test_complex VALUES ('(1.0, 2.5)', '(4.2, 3.55 )');
INSERT INTO test_complex VALUES ('(33.0, 51.4)', '(100.42, 93.55)');
SELECT * FROM test_complex;
@ -138,13 +138,13 @@ SELECT 'READ ABOVE!' AS STOP;
-- first, define the required operators
CREATE FUNCTION complex_abs_lt(complex, complex) RETURNS bool
AS '_OBJWD_/complex.so' LANGUAGE 'c'
AS '_OBJWD_/complex.so' LANGUAGE 'c';
CREATE FUNCTION complex_abs_le(complex, complex) RETURNS bool
AS '_OBJWD_/complex.so' LANGUAGE 'c'
AS '_OBJWD_/complex.so' LANGUAGE 'c';
CREATE FUNCTION complex_abs_eq(complex, complex) RETURNS bool
AS '_OBJWD_/complex.so' LANGUAGE 'c'
AS '_OBJWD_/complex.so' LANGUAGE 'c';
CREATE FUNCTION complex_abs_ge(complex, complex) RETURNS bool
AS '_OBJWD_/complex.so' LANGUAGE 'c'
AS '_OBJWD_/complex.so' LANGUAGE 'c';
CREATE FUNCTION complex_abs_gt(complex, complex) RETURNS bool
AS '_OBJWD_/complex.so' LANGUAGE 'c';
@ -153,25 +153,25 @@ CREATE FUNCTION complex_abs_gt(complex, complex) RETURNS bool
CREATE OPERATOR < (
leftarg = complex, rightarg = complex, procedure = complex_abs_lt,
restrict = intltsel, join = intltjoinsel
)
);
CREATE OPERATOR <= (
leftarg = complex, rightarg = complex, procedure = complex_abs_le,
restrict = intltsel, join = intltjoinsel
)
);
CREATE OPERATOR = (
leftarg = complex, rightarg = complex, procedure = complex_abs_eq,
restrict = eqsel, join = eqjoinsel
)
);
CREATE OPERATOR >= (
leftarg = complex, rightarg = complex, procedure = complex_abs_ge,
restrict = intgtsel, join = intgtjoinsel
)
);
CREATE OPERATOR > (
leftarg = complex, rightarg = complex, procedure = complex_abs_gt,
restrict = intgtsel, join = intgtjoinsel
);
INSERT INTO pg_opclass VALUES ('complex_abs_ops')
INSERT INTO pg_opclass VALUES ('complex_abs_ops');
SELECT oid, opcname FROM pg_opclass WHERE opcname = 'complex_abs_ops';
@ -241,7 +241,7 @@ INSERT INTO pg_amproc (amid, amopclaid, amproc, amprocnum)
-- now, we can define a btree index on complex types. First, let's populate
-- the table. Note that postgres needs many more tuples to start using the
-- btree index during selects.
INSERT INTO test_complex VALUES ('(56.0,-22.5)', '(-43.2,-0.07)')
INSERT INTO test_complex VALUES ('(56.0,-22.5)', '(-43.2,-0.07)');
INSERT INTO test_complex VALUES ('(-91.9,33.6)', '(8.6,3.0)');
CREATE INDEX test_cplx_ind ON test_complex
@ -250,3 +250,22 @@ CREATE INDEX test_cplx_ind ON test_complex
SELECT * from test_complex where a = '(56.0,-22.5)';
SELECT * from test_complex where a < '(56.0,-22.5)';
SELECT * from test_complex where a > '(56.0,-22.5)';
DROP FUNCTION complex_in(opaque);
DROP FUNCTION complex_out(opaque);
DROP FUNCTION complex_add(complex, complex);
DROP FUNCTION complex_abs_lt(complex, complex);
DROP FUNCTION complex_abs_le(complex, complex);
DROP FUNCTION complex_abs_eq(complex, complex);
DROP FUNCTION complex_abs_ge(complex, complex);
DROP FUNCTION complex_abs_gt(complex, complex);
DROP FUNCTION complex_abs_cmp(complex, complex);
DROP OPERATOR + (complex, complex);
DROP OPERATOR < (complex, complex);
DROP OPERATOR <= (complex, complex);
DROP OPERATOR = (complex, complex);
DROP OPERATOR >= (complex, complex);
DROP OPERATOR > (complex, complex);
DROP AGGREGATE complex_sum complex;
DROP TYPE complex;
DROP TABLE test_complex;