database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-27 12:41:57 +03:00
Code Activity

Document get_call_result_type() and friends; mark TypeGetTupleDesc()

Browse Source 
and RelationNameGetTupleDesc() as deprecated; remove uses of the
latter in the contrib library.  Along the way, clean up crosstab()
code and documentation a little.
This commit is contained in:
Tom Lane
2005-05-30 23:09:07 +00:00
parent b215fae891
commit 978129f28e
12 changed files with 373 additions and 231 deletions
Download Patch File Download Diff File Expand all files Collapse all files

53
contrib/tablefunc/expected/tablefunc.out
View File

@ -102,27 +102,40 @@ SELECT * FROM crosstab4('SELECT rowid, attribute, val FROM ct where rowclass = '
test4 | val4 | val5 | val6 |
(2 rows)
SELECT * FROM crosstab('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;', 2) AS c(rowid text, att1 text, att2 text);
SELECT * FROM crosstab('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;') AS c(rowid text, att1 text, att2 text);
rowid | att1 | att2
-------+------+------
test1 | val1 | val2
test2 | val5 | val6
(2 rows)
SELECT * FROM crosstab('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;', 3) AS c(rowid text, att1 text, att2 text, att3 text);
SELECT * FROM crosstab('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;') AS c(rowid text, att1 text, att2 text, att3 text);
rowid | att1 | att2 | att3
-------+------+------+------
test1 | val1 | val2 | val3
test2 | val5 | val6 | val7
(2 rows)
SELECT * FROM crosstab('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;', 4) AS c(rowid text, att1 text, att2 text, att3 text, att4 text);
SELECT * FROM crosstab('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;') AS c(rowid text, att1 text, att2 text, att3 text, att4 text);
rowid | att1 | att2 | att3 | att4
-------+------+------+------+------
test1 | val1 | val2 | val3 | val4
test2 | val5 | val6 | val7 | val8
(2 rows)
-- check it works with OUT parameters, too
CREATE FUNCTION crosstab_out(text,
OUT rowid text, OUT att1 text, OUT att2 text, OUT att3 text)
RETURNS setof record
AS '$libdir/tablefunc','crosstab'
LANGUAGE 'C' STABLE STRICT;
SELECT * FROM crosstab_out('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;');
rowid | att1 | att2 | att3
-------+------+------+------
test1 | val1 | val2 | val3
test2 | val5 | val6 | val7
(2 rows)
--
-- hash based crosstab
--
@ -211,6 +224,40 @@ AS c(rowid text, rowdt timestamp, temperature text, test_result text, test_start
-------+-------+-------------+-------------+----------------+-------
(0 rows)
-- check it works with a named result rowtype
create type my_crosstab_result as (
rowid text, rowdt timestamp,
temperature int4, test_result text, test_startdate timestamp, volts float8);
CREATE FUNCTION crosstab_named(text, text)
RETURNS setof my_crosstab_result
AS '$libdir/tablefunc','crosstab_hash'
LANGUAGE 'C' STABLE STRICT;
SELECT * FROM crosstab_named(
'SELECT rowid, rowdt, attribute, val FROM cth ORDER BY 1',
'SELECT DISTINCT attribute FROM cth ORDER BY 1');
rowid | rowdt | temperature | test_result | test_startdate | volts
-------+--------------------------+-------------+-------------+--------------------------+--------
test1 | Sat Mar 01 00:00:00 2003 | 42 | PASS | | 2.6987
test2 | Sun Mar 02 00:00:00 2003 | 53 | FAIL | Sat Mar 01 00:00:00 2003 | 3.1234
(2 rows)
-- check it works with OUT parameters
CREATE FUNCTION crosstab_out(text, text,
OUT rowid text, OUT rowdt timestamp,
OUT temperature int4, OUT test_result text,
OUT test_startdate timestamp, OUT volts float8)
RETURNS setof record
AS '$libdir/tablefunc','crosstab_hash'
LANGUAGE 'C' STABLE STRICT;
SELECT * FROM crosstab_out(
'SELECT rowid, rowdt, attribute, val FROM cth ORDER BY 1',
'SELECT DISTINCT attribute FROM cth ORDER BY 1');
rowid | rowdt | temperature | test_result | test_startdate | volts
-------+--------------------------+-------------+-------------+--------------------------+--------
test1 | Sat Mar 01 00:00:00 2003 | 42 | PASS | | 2.6987
test2 | Sun Mar 02 00:00:00 2003 | 53 | FAIL | Sat Mar 01 00:00:00 2003 | 3.1234
(2 rows)
--
-- connectby
--