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Postgres FD Implementation
Commit e9e42f6f authored by Bruce Momjian's avatar Bruce Momjian
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Remove cluster TODO e-mail file

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doc/TODO
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...@@ -114,7 +114,7 @@ COMMANDS ...@@ -114,7 +114,7 @@ COMMANDS
* Add ALTER TABLE DROP/ALTER COLUMN feature(Peter E) * Add ALTER TABLE DROP/ALTER COLUMN feature(Peter E)
* Add ALTER TABLE command to change table ownership * Add ALTER TABLE command to change table ownership
* Allow CLUSTER on all tables at once, and improve CLUSTER, loses NOT * Allow CLUSTER on all tables at once, and improve CLUSTER, loses NOT
NULL specification, indexes, permissions, etc on table[cluster] NULL specification, indexes, permissions, etc on table
* Add SIMILAR TO to allow character classes, 'pg_[a-c]%' * Add SIMILAR TO to allow character classes, 'pg_[a-c]%'
* Auto-destroy sequence on DROP of table with SERIAL(Ryan) * Auto-destroy sequence on DROP of table with SERIAL(Ryan)
* Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison * Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison
......
doc/TODO.detail/cluster deleted 100644 → 0
View file @ 40c992c7
From owner-pgsql-hackers@hub.org Thu Apr 16 15:00:41 1998
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From: "Jackson, DeJuan" <djackson@cpsgroup.com>
To: PostgreSQL Hackers Mailing List <pgsql-hackers@hub.org>
Cc: PostgreSQL Questions Mailing List <pgsql-questions@postgreSQL.org>
Subject: [HACKERS] Bug or Short between my brain and the keyboard?
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Just thought I'd try the cluster command. What am I doing wrong.
ReadHat 5.0
6.3.1 rpm's
[djackson@www]$ psql template1
Welcome to the POSTGRESQL interactive sql monitor:
Please read the file COPYRIGHT for copyright terms of POSTGRESQL
type \? for help on slash commands
type \q to quit
type \g or terminate with semicolon to execute query
You are currently connected to the database: template1
template1=> \d
Couldn't find any tables, sequences or indices!
template1=> \l
datname |datdba|datpath
---------+------+---------
template1| 100|template1
postgres | 100|postgres
(2 rows)
template1=> create database test;
CREATEDB
template1=> \connect test
connecting to new database: test
test=> create table list (k int2);
CREATE
test=> insert into list values (1);
INSERT 33769 1
test=> insert into list select max(k)+1;
.
.
.
test=> select * from list;
k
-
1
2
3
4
5
6
(6 rows)
test=> create table list2 (k1 int2 NOT NULL, k2 int2 NOT NULL);
CREATE
test=> create UNIQUE INDEX l1 ON list2(k1, k2);
CREATE
test=> create UNIQUE INDEX l2 ON list2(k2, k1);
CREATE
test=> insert into list2 select l1.k, l2.k from list as l1, list as l2;
INSERT 0 36
test=> select * from list2;
k1|k2
--+--
1| 1
2| 1
3| 1
.
.
.
4| 6
5| 6
6| 6
(36 rows)
test=> vacuum verbose analyze list2;
NOTICE: Rel list2: Pages 1: Changed 0, Reapped 0, Empty 0, New 0; Tup
36: Vac 0, Crash 0, UnUsed 0, MinLen 44, MaxLen 44; Re-using:
Free/Avail. Space 0/0; EndEmpty/Avail. Pages 0/0. Elapsed 0/0 sec.
NOTICE: Ind l2: Pages 2; Tuples 36. Elapsed 0/0 sec.
NOTICE: Ind l1: Pages 2; Tuples 36. Elapsed 0/0 sec.
VACUUM
test=> cluster l1 on list2;
ERROR: Cannot create unique index. Table contains non-unique values
test=> cluster l2 on list2;
PQexec() -- Request was sent to backend, but backend closed the channel
before responding.
This probably means the backend terminated abnormally before or
while processing the request.
From owner-pgsql-ports@hub.org Tue Jun 22 21:03:40 1999
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To: pgsql-ports@postgreSQL.org
Reply-to: Vladimir Dobrokhotov <dvs@rybvod.kamchatka.su>
Subject: [PORTS] Port Bug Report: 1.backend crash when frontend do cluster (sometimes!?), 2.cluster does not work
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Status: ROr
============================================================================
POSTGRESQL BUG REPORT TEMPLATE
============================================================================
Your name : Vladimir Dobrokhotov
Your email address : dvs@rybvod.kamchatka.su
Category : runtime: back-end
Severity : critical
Summary: 1.backend crash when frontend do cluster (sometimes!?), 2.cluster does not work
System Configuration
--------------------
Operating System : FreeBSD 2.2.5-RELEASE
PostgreSQL version : 6.5
Compiler used : gcc 2.7.2.1
Hardware:
---------
Pentium, 32 RAM
Versions of other tools:
------------------------
gmake 3.75, flex 2.5.4
--------------------------------------------------------------------------
Problem Description:
--------------------
This problem come from pg6.2.
cluster (unique index btree(4 filelds varchar(4))) not work - "cannot create unique index. Table contains non-unique values."
In pg6.4.2 command "cluster ind_un.." destroy all indexes on the table but index "ind_un" detroy fields form 2...
In pg6.5 - random one from:
1) ERROR: cannot create unique index. Table contains non-unique values.
2) pgReadData() -- backend closed ... (need restart frontend)
3) pgReadData() -- backend closed ... (need restart backend, frontend)
4) pgReadData() -- backend closed ... (need restart backend, frontend, remove file "temp_1ddbc".)
--------------------------------------------------------------------------
Test Case:
----------
=>create table sns (n1 varchar(4), n2 varchar(4), n3 varchar(4), n4 varchar(4), name text);
CREATE
=>insert into sns values ('0','00','','','a');
INSERT 278624 1
=>insert into sns values ('0','01','','','b');
INSERT 278626 1
=>create unique index sn_b on sns using btree(n1,n2,n3,n4);
CREATE
=>cluster sn_b on sns;
ERROR: Cannot create unique index. Table contains non-unique values
=>cluster sn_b on sns;
pgReadData() -- backend closed the channel unexpectedly.
This probably means the backend terminated abnormally
before or while processing the request.
We have lost the connection to backend, so further processing is impossible.
Terminating.
#psql dv14
Connection to database 'dv14' failed.
connectDB() -- ...
#su postgres
$~/rc.local
postmaster.
^D#psql dv14
Welcome to the POSTGRES interactive sql monitor.
...
=>cluster sn_b on sns;
ERROR: cannot create temp_44050
(rm ~/data/base/dv14/temp_44050)
=>cluster sn_b on sns;
ERROR: Cannot create unique index. Table contains non-unique values
=>cluster sn_b on sns;
pgReadData() -- backend closed the channel unexpectedly.
This probably means the backend terminated abnormally
before or while processing the request.
We have lost the connection to backend, so further processing is impossible.
Terminating.
#psql dv14
Welcome to the POSTGRES interactive sql monitor.
...
=>
--------------------------------------------------------------------------
Solution:
---------
--------------------------------------------------------------------------
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Date: Sun, 29 Aug 1999 07:36:30 +0000
From: Constantin Teodorescu <teo@flex.ro>
Organization: FLEX Consulting Braila
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To: "pgsql-hackers@postgreSQL.org" <pgsql-hackers@postgreSQL.org>
Subject: [HACKERS] Cluster on (index-name) loose NOT NULL properties
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Hello all,
trying the new version of PgAccess (hope tomorrow will be available) I
discovered that clustering a table on an index loose also the NOT NULL
attributes from the original table. I know that the permissions are also
lost but didn't read anywhere about the NOT NULL.
Best regards,
Constantin Teodorescu
FLEX Consulting Braila, ROMANIA
************
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