Horde_Db 2.4.1 was released in February 2021 and solves this issue.

See GitHub issue: https://github.com/horde/Db/pull/4


Cheers,
Thorsten

is there any progress on this ??..... thank you !

Same here:

while groupware-install following happens:

Creating and updating database tables...
   Fatal Error:
   SQLSTATE[42703]: Undefined column: 7 ERROR:  column def.adsrc does not exist
   LINE 4:                 WHEN split_part(def.adsrc, '''', 2) ~ '.' TH...
                                           ^
   In /usr/share/php/Horde/Db/Adapter/Pdo/Base.php on line 233

    1. Horde_Core_Bundle->migrateDb() /usr/bin/groupware-install:32
    2. Horde_Core_Db_Migration->getMigrator() 
/usr/share/php/Horde/Core/Bundle.php:102
    3. Horde_Db_Migration_Migrator->__construct() 
/usr/share/php/Horde/Core/Db/Migration.php:123
    4. Horde_Db_Migration_Migrator->_initializeSchemaInformation() 
/usr/share/php/Horde/Db/Migration/Migrator.php:77
    5. Horde_Db_Adapter_Pdo_Pgsql->insert() 
/usr/share/php/Horde/Db/Migration/Migrator.php:282
    6. Horde_Db_Adapter_Base->__call() 
/usr/share/php/Horde/Db/Adapter/Pdo/Pgsql.php:131
    7. Horde_Db_Adapter_Postgresql_Schema->pkAndSequenceFor() 
/usr/share/php/Horde/Db/Adapter/Base.php:274
    8. Horde_Db_Adapter_Base_Schema->__call() 
/usr/share/php/Horde/Db/Adapter/Postgresql/Schema.php:1125
    9. Horde_Db_Adapter_Pdo_Base->selectOne() 
/usr/share/php/Horde/Db/Adapter/Base/Schema.php:166
   10. Horde_Db_Adapter_Pdo_Base->execute() 
/usr/share/php/Horde/Db/Adapter/Pdo/Base.php:131
   11. Horde_Core_Bundle->migrateDb() /usr/bin/groupware-install:32
   12. Horde_Core_Db_Migration->getMigrator() 
/usr/share/php/Horde/Core/Bundle.php:102
   13. Horde_Db_Migration_Migrator->__construct() 
/usr/share/php/Horde/Core/Db/Migration.php:123
   14. Horde_Db_Migration_Migrator->_initializeSchemaInformation() 
/usr/share/php/Horde/Db/Migration/Migrator.php:77
   15. Horde_Db_Adapter_Pdo_Pgsql->insert() 
/usr/share/php/Horde/Db/Migration/Migrator.php:282
   16. Horde_Db_Adapter_Base->__call() 
/usr/share/php/Horde/Db/Adapter/Pdo/Pgsql.php:131
   17. Horde_Db_Adapter_Postgresql_Schema->pkAndSequenceFor() 
/usr/share/php/Horde/Db/Adapter/Base.php:274
   18. Horde_Db_Adapter_Base_Schema->__call() 
/usr/share/php/Horde/Db/Adapter/Postgresql/Schema.php:1125
   19. Horde_Db_Adapter_Pdo_Base->selectOne() 
/usr/share/php/Horde/Db/Adapter/Base/Schema.php:166
   20. Horde_Db_Adapter_Pdo_Base->execute() 
/usr/share/php/Horde/Db/Adapter/Pdo/Base.php:131
   21. PDO->query() /usr/share/php/Horde/Db/Adapter/Pdo/Base.php:233

I opened a pull request on github with a patch that should solve the 
problem, it's there waiting for some love.

I can confirm that bug.

I'm trying to fix it and I'll submit a patch ASAP on github.

I've talked with the postgresql guys and it seems that that column has 
been deprecated for a long time and it even risked to contain stale 
data.

They have suggested me to use pg_get_expr(adbin,adrelid), but on 
overall the current queries that use adsrc are a bit fragile and could 
use information_schema rather than interrogating pg specific columns 
and massaging strings.

Currently I've some tentative code but I'm not able to replicate 
EXACTLY the return of one of the queries.
namely original query return eg.

nextval('public.horde_alarms_id_seq'::regclass)

while mine returns

nextval('horde_alarms_id_seq'::regclass)

I'm going to subscribe to horde dev mailing list and propose some 
patch on github ASAP

Hi,
the DB component still makes use of "adsrc".

This is a postgresql feature [1] that was deprecated for years and is 
now gone. [1] also contains a hint how it should be used.

This is still in some Horde code:
$ grep -Hrn adsrc *
lib/Horde/Db/Adapter/Postgresql/Schema.php:361:                 
$row['attname'], $row['adsrc'], $row['format_type'], 
!(boolean)$row['attnotnull']);
lib/Horde/Db/Adapter/Postgresql/Schema.php:391:            SELECT 
a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull
lib/Horde/Db/Adapter/Postgresql/Schema.php:1136:                WHEN 
split_part(def.adsrc, '''', 2) ~ '.' THEN
lib/Horde/Db/Adapter/Postgresql/Schema.php:1137:                   
substr(split_part(def.adsrc, '''', 2),
lib/Horde/Db/Adapter/Postgresql/Schema.php:1138:                       
   strpos(split_part(def.adsrc, '''', 2), '.')+1)
lib/Horde/Db/Adapter/Postgresql/Schema.php:1139:                ELSE 
split_part(def.adsrc, '''', 2)
lib/Horde/Db/Adapter/Postgresql/Schema.php:1147:              AND 
def.adsrc ~* 'nextval'";

Which leads to errors like the following (on test):
There were 12 errors:

1) Horde_Db_Adapter_Pdo_PgsqlTest::testColumns
Horde_Db_Exception: SQLSTATE[42703]: Undefined column: 7 ERROR:   
column d.adsrc does not exist
LINE 2: ... a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a...
                                                              ^

/tmp/autopkgtest.uUKdVj/build.XmB/src/Horde_Db-2.4.0/lib/Horde/Db/Adapter/Pdo/Base.php:237
/tmp/autopkgtest.uUKdVj/build.XmB/src/Horde_Db-2.4.0/lib/Horde/Db/Adapter/Pdo/Base.php:109
/tmp/autopkgtest.uUKdVj/build.XmB/src/Horde_Db-2.4.0/lib/Horde/Db/Adapter/Base/Schema.php:166
/tmp/autopkgtest.uUKdVj/build.XmB/src/Horde_Db-2.4.0/lib/Horde/Db/Adapter/Postgresql/Schema.php:385
/tmp/autopkgtest.uUKdVj/build.XmB/src/Horde_Db-2.4.0/lib/Horde/Db/Adapter/Postgresql/Schema.php:347
/tmp/autopkgtest.uUKdVj/build.XmB/src/Horde_Db-2.4.0/lib/Horde/Db/Adapter/Base.php:274
/tmp/autopkgtest.uUKdVj/build.XmB/src/Horde_Db-2.4.0/test/Horde/Db/Adapter/TestBase.php:519
/tmp/autopkgtest.uUKdVj/build.XmB/src/Horde_Db-2.4.0/test/Horde/Db/Adapter/Pdo/PgsqlTest.php:159

Caused by
PDOException: SQLSTATE[42703]: Undefined column: 7 ERROR:  column 
d.adsrc does not exist
LINE 2: ... a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a...
...

[1]: https://www.postgresql.org/docs/8.3/catalog-pg-attrdef.html