TODO list for PostgreSQL

========================

Last updated:Sat Nov 6 11:54:11 EST 1999

Last updated:Mon Nov22 13:02:03 EST 1999

Current maintainer:Bruce Momjian (pgman@candle.pha.pa.us)

PARSER

* Disallow inherited columns with the same name as new columns

* INSERT INTO ... SELECT with AS columns matching result columns problem

*-INSERT INTO ... SELECT with AS columns matching result columns problem

* SELECT pg_class FROM pg_class generates strange error

* Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT

* Do not allow bpchar column creation without length

* SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo

* -INSERT ... SELECT ... GROUP BY groups by target columns not source columns(Tom)

* -CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT(Tom)

* UNION with LIMIT fails

*-UNION with LIMIT fails

* Unique index on base column not honored on inserts from inherited table

INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail

[inherit]

* CREATE TABLE x AS SELECT 1 UNION SELECT 2 fails

* CREATE TABLE test(col char(2) DEFAULT user) fails in length restriction

* mismatched types in CREATE TABLE ... DEFAULT causes problems [default]

*-CREATE TABLE x AS SELECT 1 UNION SELECT 2 fails

*-CREATE TABLE test(col char(2) DEFAULT user) fails in length restriction

*-mismatched types in CREATE TABLE ... DEFAULT causes problems [default]

* SELECT ... UNION ... ORDER BY fails when sort expr not in result list

* Be smarter about promoting types when UNION merges different data types

* SELECT ... UNION ... GROUP BY fails if column types disagree

* redesign INSERT ... SELECT to have two levels of target list

* -select * from pg_class where oid in (0,-1)

* have INTERSECT/EXCEPT prevent duplicates unless ALL is specified

* prevent primary key of nine columns [primary]

* SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes

*-SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes

* SELECT DISTINCT ON col1 col1 col2 FROM tab1 is broken [distinct]

* -require SELECT DISTINCT target list to have all ORDER BY columns

* -When using aggregates + GROUP BY, no rows in should yield no rows out(Tom)

* Add referential integrity(Jan?)[primary]

* Add OUTER joins, left and right[outer](Thomas, Bruce)

* Allow long tuples by chaining or auto-storing outside db (chaining,large objs)

* Eliminate limits on query length

*-Eliminate limits on query length

* Fix memory leak for expressions[memory](Tom?)

* -Fix memory leak for aggregates(Tom)

* Nchar (as distinguished from ordinary varchar),

* Domain capability

* Add STDDEV/VARIANCE() function for standard deviation computation/variance

* Allow compression of large fields or a compressed field type

*-Allow compression of large fields or a compressed field type

* Large objects

o Fix large object mapping scheme, own typeid or reltype(Peter)

o Allow large text type to use large objects(Peter)

with after-row images(Vadim) [logging](Vadim)

* Populate backend status area and write program to dump status data

* Make oid use unsigned int more reliably, pg_atoi()

* Allow subqueries in target list

*-Allow subqueries in target list

* Put sort files, large objects in their own directory

* Do autocommit so always in a transaction block(?)

* Show location of syntax error in query [yacc]

* Redesign the function call interface to handle NULLs better [function]

* Document/trigger/rule so changes to pg_shadow recreate pg_pwd [pg_shadow]

* Missing optimizer selectivities for date, r-tree, etc. [optimizer]

* Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup

*-Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup

* Overhaul bufmgr/lockmgr/transaction manager

* Add PL/Perl(Mark Hollomon)

* Make postgres user have a password by default

* Add use of 'const' for variables in source tree

* Fix C optimizer problem where fmgr_ptr calls return different types [alpha]

* -Add needed includes and removed unneeded include files(Bruce)

* Make configure --enable-debug add -g on compile line

*-Make configure --enable-debug add -g on compile line

* Does Mariposa source contain any other bug fixes?

* Remove SET KSQO option if OR processing is improved(Tom)

* rename 'createuser' to 'pg_createuser', and add 'pg_' to other commands

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To: bugs@postgreSQL.org, hackers@postgreSQL.org

Subject: [HACKERS] Failures with arrays

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Content-Type: text/plain; charset=us-ascii

Date: Wed, 25 Nov 1998 23:48:51 +0000

From: "Oliver Elphick" <olly@lfix.co.uk>

Sender: owner-pgsql-hackers@postgreSQL.org

Precedence: bulk

Status: ROr

This was reported as a bug with the Debian package of 6.3.2; the same

behaviour is still present in 6.4.

bray=> create table foo ( t text[]);

CREATE

bray=> insert into foo values ( '{"a"}');

INSERT 201354 1

bray=> insert into foo values ( '{"a","b"}');

INSERT 201355 1

bray=> insert into foo values ( '{"a","b","c"}');

INSERT 201356 1

bray=> select * from foo;

t

-------------

{"a"}

{"a","b"}

{"a","b","c"}

(3 rows)

bray=> select t[1] from foo;

ERROR: type name lookup of t failed

bray=> select * from foo;

t

-------------

{"a"}

{"a","b"}

{"a","b","c"}

(3 rows)

bray=> select foo.t[1] from foo;

t

-

a

a

a

(3 rows)

bray=> select count(foo.t[1]) from foo;

pqReadData() -- backend closed the channel unexpectedly.

--

Oliver Elphick Oliver.Elphick@lfix.co.uk

Isle of Wight http://www.lfix.co.uk/oliver

PGP key from public servers; key ID 32B8FAA1

========================================

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