Обсуждение: pgadmin III crashes when inserting a row (1.6.2 and 1.6.3)

Here's what I have done:

Installed postgresql 8.2 on XP Home (SP2)
Created a database
Created a table
Added two columns to the table (combined to make the key)

I then tried to add one row of data.  I entered the text into both
columns.  When I hit return, it crashed.  The data is there when I
bring it up again but having in crash every time I enter a single row
is rather unpleasant and it essentially makes the tool unusable for
what I need to do to initially setup the database.

I then installed pgadmin 1.6.3 in hopes that would improve matters.
Nope, same problem.

>From reading the posts, this has occurred in past releases as well.
Does anyone have a workaround yet?

Thanks.

Jeanie

jeanie.schwenk@gmail.com wrote:
> Here's what I have done:
> 
> Installed postgresql 8.2 on XP Home (SP2)
> Created a database
> Created a table
> Added two columns to the table (combined to make the key)
> 
> I then tried to add one row of data.  I entered the text into both
> columns.  When I hit return, it crashed.  The data is there when I
> bring it up again but having in crash every time I enter a single row
> is rather unpleasant and it essentially makes the tool unusable for
> what I need to do to initially setup the database.
> 
> I then installed pgadmin 1.6.3 in hopes that would improve matters.
> Nope, same problem.

I cannot reproduce this in a simple test - what does your table 
definition look like exactly, and what values are you entering? Also, 
what encoding is your database in?

>>From reading the posts, this has occurred in past releases as well.
> Does anyone have a workaround yet?

That was in the 1.5 development code in which there were some threading 
issues which have long since been sorted.

Regards, Dave

Thank you for your post Dave.  To answer your questions, the encoding is SQL_ASCII. Here are the database and table definitions as well as the table's contents:

CREATE DATABASE "Scrip"
  WITH OWNER = postgres
       ENCODING = 'SQL_ASCII'
       TABLESPACE = pg_default;

CREATE TABLE "organization"
(
  "name" character varying(50) NOT NULL,
  "campus" character varying(50) NOT NULL,
  CONSTRAINT "organization_pkey" PRIMARY KEY ("name", "campus")
) 

The table contents are ascii (as seen from the pgadmin III Edit Data):

name                                           campus
-------------------------------------------------------------------
Heritage Christian School            Grammar
Heritage Christian School            Logic and Rhetoric
test                                               test2

HOWEVER, when I use the option to type in a query (pgAdmin III Query), I can see that it is pointing to the correct database (Scrip on localhost:5432) but "select * from organization" returns the following error:

ERROR: relation "organization" does not exist
SQL state: 42P01

So I have to conclude that it cannot see the table (perhaps not even the database).  When I add a row through the Edit Data window, I type text in the first column and then text in the second column.  When I hit return, it thinks for a little bit and then crashes.   Can you tell me why the select query failed and yet I was able to add fourth row through the Edit Data window? 

Regards,

Jeanie

Jeanie Schwenk wrote:

Thank you for your post Dave.  To answer your questions, the encoding is SQL_ASCII. Here are the database and table definitions as well as the table's contents:

CREATE DATABASE "Scrip"
  WITH OWNER = postgres
       ENCODING = 'SQL_ASCII'
       TABLESPACE = pg_default;

CREATE TABLE "organization"
(
  "name" character varying(50) NOT NULL,
  "campus" character varying(50) NOT NULL,
  CONSTRAINT "organization_pkey" PRIMARY KEY ("name", "campus")
) 

The table contents are ascii (as seen from the pgadmin III Edit Data):

name                                           campus
-------------------------------------------------------------------
Heritage Christian School            Grammar
Heritage Christian School            Logic and Rhetoric
test                                               test2

HOWEVER, when I use the option to type in a query (pgAdmin III Query), I can see that it is pointing to the correct database (Scrip on localhost:5432) but "select * from organization" returns the following error:

ERROR: relation "organization" does not exist
SQL state: 42P01

So I have to conclude that it cannot see the table (perhaps not even the database).  When I add a row through the Edit Data window, I type text in the first column and then text in the second column.  When I hit return, it thinks for a little bit and then crashes.   Can you tell me why the select query failed and yet I was able to add fourth row through the Edit Data window? 

Regards,

Jeanie

On 3/30/07, Dave Page <dpage@postgresql.org> wrote:

jeanie.schwenk@gmail.com wrote:
> Here's what I have done:
>
> Installed postgresql 8.2 on XP Home (SP2)
> Created a database
> Created a table
> Added two columns to the table (combined to make the key)
>
> I then tried to add one row of data.  I entered the text into both
> columns.  When I hit return, it crashed.  The data is there when I
> bring it up again but having in crash every time I enter a single row
> is rather unpleasant and it essentially makes the tool unusable for
> what I need to do to initially setup the database.
>
> I then installed pgadmin 1.6.3 in hopes that would improve matters.
> Nope, same problem.

I cannot reproduce this in a simple test - what does your table
definition look like exactly, and what values are you entering? Also,
what encoding is your database in?

>>From reading the posts, this has occurred in past releases as well.
> Does anyone have a workaround yet?

That was in the 1.5 development code in which there were some threading
issues which have long since been sorted.

Regards, Dave

I'm not an expert, however, your SQL query may need the double quotes around the field names and table name.  Your table definition created the field names and table names with double quotes, therefore your SQL query must call those field names and table names with the double quotes as well.

Hope that helps,
Derrick

Derrick,

Thank you for your input.  I tried that, however, ir made no difference. 

What I did try though was drop the database, close the application, restart and then start from scratch following the same steps I did the first time (setting everything up via the interface).  The problem is gone although this doesn't leave me feeling very confident about using postgresql inside my application as I need it to work the first time. 

Regards,

Jeanie

Jeanie Schwenk wrote:
> Derrick,
> 
> Thank you for your input.  I tried that, however, ir made no difference. 
> 
> What I did try though was drop the database, close the application, 
> restart and then start from scratch following the same steps I did the 
> first time (setting everything up via the interface).  The problem is 
> gone although this doesn't leave me feeling very confident about using 
> postgresql inside my application as I need it to work the first time. 

That's bizarre - my best guess is that one of the system catalog indexes 
got messed up somehow which is umm, unusual to say the least.

Virtually all corruptions in modern PostgreSQL installations tend to get 
traced back to hardware issues eventually, so I'd recommend a thorough 
check of your server - particularly the memory (try memtest86 assuming 
its x86 hardware). It could also be a disk issue, though they tend to be 
far more obvious in my experience.

Of course, it is possible it's a PostgreSQL bug but I'd lay odds that if 
that is the case, you don't see it again (what you are doing atm is so 
basic that we'd certainly have seen the problem before, given the 
hundreds of thousands of installations out there). If I'm wrong, please 
come back to us so we can investigate further and try to figure out 
what's unique about your installation.

Regards, Dave

On Mar 31, 5:01 pm, l...@blueaxis.com (Derrick Betts) wrote:
(...)
> I'm not an expert, however, your SQL query may need the double quotes
> around the field names and table name.  Your table definition created
> the field names and table names with double quotes, therefore your SQL
> query must call those field names and table names with the double quotes
> as well.

Actually, this is not exact. Here is, what double quotes do
http://www.postgresql.org/docs/8.2/static/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS

In the example above "organization" is a non-reserved word in lower
case, so the double-quotes do nothing.
Jeanie might erroneoulsy have used mixed-case in creating the object.
Like:  CREATE TABLE "Organization" ...
That would explain everything, of course.

Personally, I would refrain from using identifiers that need double-
quoting to begin with. Makes your life easier.


Regards
Erwin

On Mar 31, 5:01 pm, l...@blueaxis.com (Derrick Betts) wrote:
(...)
> I'm not an expert, however, your SQL query may need the double quotes
> around the field names and table name.  Your table definition created
> the field names and table names with double quotes, therefore your SQL
> query must call those field names and table names with the double quotes
> as well.

Actually, this is not exact. Here is, what double quotes do
http://www.postgresql.org/docs/8.2/static/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS

In the example above "organization" is a non-reserved word in lower
case, so the double-quotes do nothing.
Jeanie might erroneoulsy have used mixed-case in creating the object.
Like:  CREATE TABLE "Organization" ...
That would explain everything, of course.

Personally, I would refrain from using identifiers that need double-
quoting to begin with. Makes your life easier.


Regards
Erwin