Thread: Getting list of Indexes & contrains
Hi, I am using PostgreSQL 8 and adodb. adodb has a built-in function which scans and retrieves db structure as assotiative array. Unfortunately, it do not list indexes and constrains. What would be a SQL statement to retrieve them? Thanks in advance for any suggestion(s). ************************************************ *** with best regards *** Andrei Verovski (aka MacGuru) *** Mac, Linux, DTP, Programming Web Site *** *** http://snow.prohosting.com/guru4mac/ ************************************************
If you only want list and not exact description : Use '\di' for indexes And for sample description of a table '\d <yourtable>' But for real description you have to cross pg_* tables. Regards Alban -----Original Message----- From: pgsql-php-owner@postgresql.org [mailto:pgsql-php-owner@postgresql.org] On Behalf Of Andrei Verovski (aka MacGuru) Sent: jeudi 8 septembre 2005 22:29 To: PostgreSQL - PHP Subject: [PHP] Getting list of Indexes & contrains Hi, I am using PostgreSQL 8 and adodb. adodb has a built-in function which scans and retrieves db structure as assotiative array. Unfortunately, it do not list indexes and constrains. What would be a SQL statement to retrieve them? Thanks in advance for any suggestion(s). ************************************************ *** with best regards *** Andrei Verovski (aka MacGuru) *** Mac, Linux, DTP, Programming Web Site *** *** http://snow.prohosting.com/guru4mac/ ************************************************ ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
If you use -E option when doing issuing a "\di" command in psql it will
show you the query that it performs to list the indexes.
For example:
mmcintyre@beta matrix $ psql -E -U clients marc_dev
Welcome to psql 7.4.7, the PostgreSQL interactive terminal.
Type: \copyright for distribution terms
\h for help with SQL commands
\? for help on internal slash commands
\g or terminate with semicolon to execute query
\q to quit
marc_dev=> \di
********* QUERY **********
SELECT n.nspname as "Schema",
c.relname as "Name",
CASE c.relkind WHEN 'r' THEN 'table' WHEN 'v' THEN 'view' WHEN 'i'
THEN 'index' WHEN 'S' THEN 'sequence' WHEN 's' THEN 'special' END as "Type",
u.usename as "Owner",
c2.relname as "Table"
FROM pg_catalog.pg_class c
JOIN pg_catalog.pg_index i ON i.indexrelid = c.oid
JOIN pg_catalog.pg_class c2 ON i.indrelid = c2.oid
LEFT JOIN pg_catalog.pg_user u ON u.usesysid = c.relowner
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE c.relkind IN ('i','')
AND n.nspname NOT IN ('pg_catalog', 'pg_toast')
AND pg_catalog.pg_table_is_visible(c.oid)
ORDER BY 1,2;
**************************
List of relations
Schema | Name | Type | Owner | Table
--------+--------------------------------+-------+---------+--------------------------
public | sq_ast_attr_name | index | clients | sq_ast_attr
public | sq_ast_attr_pkey | index | clients | sq_ast_attr
public | sq_ast_attr_type_code | index | clients | sq_ast_attr
public | sq_ast_attr_type_code_key | index | clients | sq_ast_attr
public | sq_ast_attr_uniq_val_pkey | index | clients |
sq_ast_attr_uniq_val
public | sq_ast_attr_val_assetid | index | clients | sq_ast_attr_val
public | sq_ast_attr_val_attrid | index | clients | sq_ast_attr_val
public | sq_ast_attr_val_concat | index | clients | sq_ast_attr_val
public | sq_ast_attr_val_pkey | index | clients | sq_ast_attr_val
public | sq_ast_created | index | clients | sq_ast
public | sq_ast_edit_access_pkey | index | clients |
sq_ast_edit_access
:
You can then modify and use this query in your application.
Andrei Verovski (aka MacGuru) wrote:
>Hi,
>
>I am using PostgreSQL 8 and adodb. adodb has a built-in function which
>scans and retrieves db structure as assotiative array. Unfortunately,
>it do not list indexes and constrains. What would be a SQL statement
>to retrieve them?
>
>Thanks in advance for any suggestion(s).
>
>
>************************************************
>*** with best regards
>*** Andrei Verovski (aka MacGuru)
>*** Mac, Linux, DTP, Programming Web Site
>***
>*** http://snow.prohosting.com/guru4mac/
>************************************************
>
>---------------------------(end of broadcast)---------------------------
>TIP 6: explain analyze is your friend
>
>
>
--
Marc McIntyre
MySource Matrix Lead Developer
..>> Sydney ...>
92 Jarrett St T: +61 (0) 2 9568 6866
Leichhardt, F: +61 (0) 2 9568 6733
NSW, 2040 W: http://www.squiz.net/
..>> Canberra ...>
Walter Turnbull Bldg T: +61 (0) 2 6233 0607
44 Sydney Ave, F: +61 (0) 2 6233 0696
Forrest, W: http://www.squiz.net/
ACT 2603
..>> London ...>
The Old Fire Station, T: +44 (0) 20 7300 7321
140 Tabernacle St, F: +44 (0) 870 112 3394
London EC2A 4SD W: http://www.squiz.co.uk/
.....>> Open Source - Own it - Squiz.net ...../>
IMPORTANT: This email (and any attachments) is commercial-in-confidence and or may be legally privileged and must not
beforwarded, copied or shared without express permission from Squiz. If you are not the intended recipient, you may not
legallycopy, disclose or use the contents in any way and you should contact squiz@squiz.net immediately and destroy
thismessage and any attachments. Thank you.
You might also want to look at http://pgfoundry.org/projects/newsysviews/ as some of the queries there are more efficient than what's in psql (some by a couple orders of magnitude IIRC). On Tue, Sep 20, 2005 at 09:09:03AM +1000, Marc McIntyre wrote: > If you use -E option when doing issuing a "\di" command in psql it will > show you the query that it performs to list the indexes. > > For example: > > mmcintyre@beta matrix $ psql -E -U clients marc_dev > Welcome to psql 7.4.7, the PostgreSQL interactive terminal. > > Type: \copyright for distribution terms > \h for help with SQL commands > \? for help on internal slash commands > \g or terminate with semicolon to execute query > \q to quit > > marc_dev=> \di > ********* QUERY ********** > SELECT n.nspname as "Schema", > c.relname as "Name", > CASE c.relkind WHEN 'r' THEN 'table' WHEN 'v' THEN 'view' WHEN 'i' > THEN 'index' WHEN 'S' THEN 'sequence' WHEN 's' THEN 'special' END as "Type", > u.usename as "Owner", > c2.relname as "Table" > FROM pg_catalog.pg_class c > JOIN pg_catalog.pg_index i ON i.indexrelid = c.oid > JOIN pg_catalog.pg_class c2 ON i.indrelid = c2.oid > LEFT JOIN pg_catalog.pg_user u ON u.usesysid = c.relowner > LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace > WHERE c.relkind IN ('i','') > AND n.nspname NOT IN ('pg_catalog', 'pg_toast') > AND pg_catalog.pg_table_is_visible(c.oid) > ORDER BY 1,2; > ************************** > List of relations > Schema | Name | Type | Owner | Table > --------+--------------------------------+-------+---------+-------------------------- > public | sq_ast_attr_name | index | clients | sq_ast_attr > public | sq_ast_attr_pkey | index | clients | sq_ast_attr > public | sq_ast_attr_type_code | index | clients | sq_ast_attr > public | sq_ast_attr_type_code_key | index | clients | sq_ast_attr > public | sq_ast_attr_uniq_val_pkey | index | clients | > sq_ast_attr_uniq_val > public | sq_ast_attr_val_assetid | index | clients | sq_ast_attr_val > public | sq_ast_attr_val_attrid | index | clients | sq_ast_attr_val > public | sq_ast_attr_val_concat | index | clients | sq_ast_attr_val > public | sq_ast_attr_val_pkey | index | clients | sq_ast_attr_val > public | sq_ast_created | index | clients | sq_ast > public | sq_ast_edit_access_pkey | index | clients | > sq_ast_edit_access > : > > You can then modify and use this query in your application. > > > Andrei Verovski (aka MacGuru) wrote: > > >Hi, > > > >I am using PostgreSQL 8 and adodb. adodb has a built-in function which > >scans and retrieves db structure as assotiative array. Unfortunately, > >it do not list indexes and constrains. What would be a SQL statement > >to retrieve them? > > > >Thanks in advance for any suggestion(s). > > > > > >************************************************ > >*** with best regards > >*** Andrei Verovski (aka MacGuru) > >*** Mac, Linux, DTP, Programming Web Site > >*** > >*** http://snow.prohosting.com/guru4mac/ > >************************************************ > > > >---------------------------(end of broadcast)--------------------------- > >TIP 6: explain analyze is your friend > > > > > > > > > -- > Marc McIntyre > MySource Matrix Lead Developer > > ..>> Sydney ...> > 92 Jarrett St T: +61 (0) 2 9568 6866 > Leichhardt, F: +61 (0) 2 9568 6733 > NSW, 2040 W: http://www.squiz.net/ > > ..>> Canberra ...> > Walter Turnbull Bldg T: +61 (0) 2 6233 0607 > 44 Sydney Ave, F: +61 (0) 2 6233 0696 > Forrest, W: http://www.squiz.net/ > ACT 2603 > > ..>> London ...> > The Old Fire Station, T: +44 (0) 20 7300 7321 > 140 Tabernacle St, F: +44 (0) 870 112 3394 > London EC2A 4SD W: http://www.squiz.co.uk/ > > .....>> Open Source - Own it - Squiz.net ...../> > > IMPORTANT: This email (and any attachments) is commercial-in-confidence and > or may be legally privileged and must not be forwarded, copied or shared > without express permission from Squiz. If you are not the intended > recipient, you may not legally copy, disclose or use the contents in any > way and you should contact squiz@squiz.net immediately and destroy this > message and any attachments. Thank you. > > > > > > ---------------------------(end of broadcast)--------------------------- > TIP 6: explain analyze is your friend > -- Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461