+AD4- -----Original Message-----
+AD4- From: Tom Lane +AFs-mailto:tgl+AEA-sss.pgh.pa.us+AF0- 
+AD4- Sent: 17 May 2002 21:26
+AD4- To: Dave Page
+AD4- Cc: pgsql-hackers+AEA-postgresql.org
+AD4- Subject: Re: +AFs-HACKERS+AF0- More schema queries 
+AD4- 
+AD4- 
+AD4- +ACI-Dave Page+ACI- +ADw-dpage+AEA-vale-housing.co.uk+AD4- writes:
+AD4- +AD4- 1) All the system views are currently part of the public namespace. 
+AD4- +AD4- Not a problem for me, but shouldn't they be in pg+AF8-catalog?
+AD4- 
+AD4- Say what?  They +ACo-are+ACo- in pg+AF8-catalog.  initdb creates nothing 
+AD4- in public.

You'll have to take my word for it that I haven't played with pg+AF8-class -
is it possible I got a snapshot that was built at precisely the wrong
moment?

helpdesk+AD0AIw- select +ACo- from pg+AF8-namespace+ADs-

  oid  +AHw-   nspname   +AHw- nspowner +AHw-      nspacl
-------+--------------+-----------+--------------------
    11 +AHw- pg+AF8-catalog  +AHw-        1 +AHw- +AHsAPQ-U+AH0-
    99 +AHw- pg+AF8-toast    +AHw-        1 +AHw- +AHsAPQB9-
  2200 +AHw- public      +AHw-        1 +AHw- +AHsAPQ-UC+AH0-
 16563 +AHw- pg+AF8-temp+AF8-1   +AHw-        1 +AHw-
 40071 +AHw- Test Schema +AHw-        1 +AHw-
 48273 +AHw- flurb       +AHw-        1 +AHw-
 40072 +AHw- test        +AHw-        1 +AHw- +AHsAPQ-UC,postgres+AD0-UC+AH0-
 48276 +AHw- dave2       +AHw-        1 +AHw-
 48277 +AHw- Gulp        +AHw-        1 +AHw- +AHsAPQ-UC,postgres+AD0-UC+AH0-
(9 rows)

helpdesk+AD0AIw- select relnamespace, relname from pg+AF8-class where relname like
'pg+AF8AJQ-'+ADs-

 relnamespace +AHw-             relname
--------------+----------------------------------
           11 +AHw- pg+AF8-largeobject
           11 +AHw- pg+AF8-aggregate
           11 +AHw- pg+AF8-trigger
           11 +AHw- pg+AF8-listener
           11 +AHw- pg+AF8-namespace
           11 +AHw- pg+AF8-attrdef
           11 +AHw- pg+AF8-database
           11 +AHw- pg+AF8-xactlock
           11 +AHw- pg+AF8-description
           11 +AHw- pg+AF8-group
           11 +AHw- pg+AF8-proc
           11 +AHw- pg+AF8-relcheck
           11 +AHw- pg+AF8-rewrite
         2200 +AHw- pg+AF8-user
         2200 +AHw- pg+AF8-rules
         2200 +AHw- pg+AF8-views
         2200 +AHw- pg+AF8-tables
         2200 +AHw- pg+AF8-indexes
         2200 +AHw- pg+AF8-stats
         2200 +AHw- pg+AF8-stat+AF8-all+AF8-tables
         2200 +AHw- pg+AF8-stat+AF8-sys+AF8-tables
           11 +AHw- pg+AF8-aggregate+AF8-fnoid+AF8-index
           11 +AHw- pg+AF8-am+AF8-name+AF8-index
           11 +AHw- pg+AF8-am+AF8-oid+AF8-index
           11 +AHw- pg+AF8-amop+AF8-opc+AF8-opr+AF8-index
           11 +AHw- pg+AF8-amop+AF8-opc+AF8-strategy+AF8-index
           11 +AHw- pg+AF8-amproc+AF8-opc+AF8-procnum+AF8-index
           11 +AHw- pg+AF8-attrdef+AF8-adrelid+AF8-adnum+AF8-index
           11 +AHw- pg+AF8-attribute+AF8-relid+AF8-attnam+AF8-index
           11 +AHw- pg+AF8-attribute+AF8-relid+AF8-attnum+AF8-index
           11 +AHw- pg+AF8-class+AF8-oid+AF8-index
           11 +AHw- pg+AF8-class+AF8-relname+AF8-nsp+AF8-index
           11 +AHw- pg+AF8-database+AF8-datname+AF8-index
           11 +AHw- pg+AF8-database+AF8-oid+AF8-index
           11 +AHw- pg+AF8-description+AF8-o+AF8-c+AF8-o+AF8-index
           11 +AHw- pg+AF8-group+AF8-name+AF8-index
           11 +AHw- pg+AF8-group+AF8-sysid+AF8-index
           11 +AHw- pg+AF8-index+AF8-indrelid+AF8-index
           11 +AHw- pg+AF8-index+AF8-indexrelid+AF8-index
           11 +AHw- pg+AF8-inherits+AF8-relid+AF8-seqno+AF8-index
           11 +AHw- pg+AF8-language+AF8-name+AF8-index
           11 +AHw- pg+AF8-language+AF8-oid+AF8-index
           11 +AHw- pg+AF8-largeobject+AF8-loid+AF8-pn+AF8-index
           11 +AHw- pg+AF8-namespace+AF8-nspname+AF8-index
           11 +AHw- pg+AF8-namespace+AF8-oid+AF8-index
           11 +AHw- pg+AF8-opclass+AF8-am+AF8-name+AF8-nsp+AF8-index
           11 +AHw- pg+AF8-opclass+AF8-oid+AF8-index
           11 +AHw- pg+AF8-operator+AF8-oid+AF8-index
           11 +AHw- pg+AF8-operator+AF8-oprname+AF8-l+AF8-r+AF8-n+AF8-index
           11 +AHw- pg+AF8-proc+AF8-oid+AF8-index
           11 +AHw- pg+AF8-proc+AF8-proname+AF8-args+AF8-nsp+AF8-index
           11 +AHw- pg+AF8-relcheck+AF8-rcrelid+AF8-index
           11 +AHw- pg+AF8-rewrite+AF8-oid+AF8-index
           11 +AHw- pg+AF8-rewrite+AF8-rel+AF8-rulename+AF8-index
           11 +AHw- pg+AF8-shadow+AF8-usename+AF8-index
           11 +AHw- pg+AF8-shadow+AF8-usesysid+AF8-index
           11 +AHw- pg+AF8-statistic+AF8-relid+AF8-att+AF8-index
           11 +AHw- pg+AF8-trigger+AF8-tgconstrname+AF8-index
           11 +AHw- pg+AF8-trigger+AF8-tgconstrrelid+AF8-index
           11 +AHw- pg+AF8-trigger+AF8-tgrelid+AF8-tgname+AF8-index
           11 +AHw- pg+AF8-trigger+AF8-oid+AF8-index
           11 +AHw- pg+AF8-type+AF8-oid+AF8-index
           11 +AHw- pg+AF8-type+AF8-typname+AF8-nsp+AF8-index
         2200 +AHw- pg+AF8-stat+AF8-user+AF8-tables
         2200 +AHw- pg+AF8-statio+AF8-all+AF8-tables
         2200 +AHw- pg+AF8-statio+AF8-sys+AF8-tables
         2200 +AHw- pg+AF8-statio+AF8-user+AF8-tables
         2200 +AHw- pg+AF8-stat+AF8-all+AF8-indexes
         2200 +AHw- pg+AF8-stat+AF8-sys+AF8-indexes
           99 +AHw- pg+AF8-toast+AF8-16384+AF8-index
           99 +AHw- pg+AF8-toast+AF8-16384
         2200 +AHw- pg+AF8-stat+AF8-user+AF8-indexes
         2200 +AHw- pg+AF8-statio+AF8-all+AF8-indexes
         2200 +AHw- pg+AF8-statio+AF8-sys+AF8-indexes
         2200 +AHw- pg+AF8-statio+AF8-user+AF8-indexes
           99 +AHw- pg+AF8-toast+AF8-1262+AF8-index
           99 +AHw- pg+AF8-toast+AF8-1262
         2200 +AHw- pg+AF8-statio+AF8-all+AF8-sequences
         2200 +AHw- pg+AF8-statio+AF8-sys+AF8-sequences
         2200 +AHw- pg+AF8-statio+AF8-user+AF8-sequences
         2200 +AHw- pg+AF8-stat+AF8-activity
           99 +AHw- pg+AF8-toast+AF8-16416+AF8-index
           99 +AHw- pg+AF8-toast+AF8-16416
         2200 +AHw- pg+AF8-stat+AF8-database
           11 +AHw- pg+AF8-statistic
           11 +AHw- pg+AF8-type
           11 +AHw- pg+AF8-attribute
           99 +AHw- pg+AF8-toast+AF8-1261+AF8-index
           99 +AHw- pg+AF8-toast+AF8-1261
           11 +AHw- pg+AF8-class
           11 +AHw- pg+AF8-inherits
           11 +AHw- pg+AF8-index
           11 +AHw- pg+AF8-operator
           99 +AHw- pg+AF8-toast+AF8-1255+AF8-index
...

+AD4- +AD4- 2) pgAdmin needs to be able to find out the namespace 
+AD4- search path for 
+AD4- +AD4- the current connection through an SQL query - is this 
+AD4- possible yet or 
+AD4- +AD4- can/will a suitable function be written?
+AD4- 
+AD4- Either 'show search+AF8-path' or 'select current+AF8-schemas()' might 
+AD4- do what you want+ADs- or perhaps not.  Why do you want to know 
+AD4- the search path? What's the scenario in which pgAdmin 
+AD4- wouldn't set the search path for itself?

pgAdmin works 99+ACU- of the time in pg+AF8-catalog. When it creates objects, it
always specifies an absolute name (CREATE TABLE public.tablename...).

However, one of the features is the ability to use the wizard, or just
type in an SQL query and output the results to either a plugin exporter
(such as MS Excel, ACSII file etc) or to a screen grid. If the user
selects the screen grid, then some parsing of the query is done to
figure out if we can generate queries to add/delete/update rows and
therefore enable or disable the relevant buttons. One of the tests is to
figure out if one of the base datasources in the query is a view -
currently this is easy, but in 7.3 we could have a table +ACY- a view with
the same name in different schemas, hence by using the path we can
figure out what object we're actually using.

Incidently if you're interested at the moment, you may remember that in
7.2 beta there was a problem with slow startup under Cygwin which was
down to a few seconds by release... The last 2 snapshots I've run take
well over a minute for postmaster startup on a P3M 1.13GHz/512Mb under
little load. There is virtually no disk activity during this time.

Regards, Dave.


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