This is in postgres 8.1:PostgreSQL 8.1.1 on x86_64-unknown-linux-gnu, compiled by GCC gcc (GCC) 3.4.2 20041017 (Red Hat
3.4.2-6.fc3)
I've got a table in one schema (work.client_collect_rates) which has an FK constraint with a table,
content.collections_l(definitions shown below). There's about 500 entries currently in my collections_l table.
I need to wipe out the contents of the collections_l table nightly and refresh it from a remote master source. (Don't
ask... long & sordid history)
As the sequence below shows, I dropped the FK constraint successfully, but when I run TRUNCATE collections_l it says:
ERROR: cannot truncate a table referenced in a foreign key constraint
DETAIL: Table "client_collect_rates" references "collections_l" via foreign key constraint "$2".
HINT: Truncate table "client_collect_rates" at the same time.
This truncation of the second table is *not* an option, but since the constraint "$2" is clearly gone, I am wondering
whatin the name of sweet apples is going on ? Is this a bug ? Have a developed premature senility ?
Any clues for the clueless would be gratefully accepted!
TIA,
Greg Williamson
DBA
GlobeXplorer LLC
billing=# \d work.client_collect_rates Table "work.client_collect_rates" Column | Type | Modifiers
---------------+---------+-----------contract_id | integer | not nullcollection_id | integer | not nullrate
|numeric |break_1 | numeric |rate_1 | numeric |break_2 | numeric |rate_2 | numeric |break_3
| numeric |rate_3 | numeric |break_4 | numeric |rate_4 | numeric |
Indexes: "clnt_colrate_ndx" UNIQUE, btree (contract_id, collection_id)
Foreign-key constraints: "$1" FOREIGN KEY (contract_id) REFERENCES client_contracts(contract_id) "$2" FOREIGN KEY
(collection_id)REFERENCES content.collections_l(collect_id)
billing=# \d content.collections_l Table "content.collections_l" Column | Type
| Modifiers
----------------------+------------------------+--------------------collect_id | integer | not
nullowner | integer |collection_name | character(50) |begin_date |
date |end_date | date |pos_accuracy | integer
|res_accuracy | integer |loc_code | character(30) |color |
integer | default 0category_id | integer |is_mosaic | integer
| not null default 0detail_metadata_view | character varying(255) |jdbc_url | character varying(255)
|jdbc_driver | character varying(255) |
Indexes: "collections_l_pkey" PRIMARY KEY, btree (collect_id) "collect_own_ndx" btree ("owner", collect_id)
billing=# alter table work.client_collect_rates drop constraint "$2";
ALTER TABLE
billing=# \d work.client_collect_rates Table "work.client_collect_rates" Column | Type | Modifiers
---------------+---------+-----------contract_id | integer | not nullcollection_id | integer | not nullrate
|numeric |break_1 | numeric |rate_1 | numeric |break_2 | numeric |rate_2 | numeric |break_3
| numeric |rate_3 | numeric |break_4 | numeric |rate_4 | numeric |
Indexes: "clnt_colrate_ndx" UNIQUE, btree (contract_id, collection_id)
Foreign-key constraints: "$1" FOREIGN KEY (contract_id) REFERENCES client_contracts(contract_id)
(Note that the "$2" FK is gone...)
billing=# truncate content.collections_l;
ERROR: cannot truncate a table referenced in a foreign key constraint
DETAIL: Table "client_collect_rates" references "collections_l" via foreign key constraint "$2".
HINT: Truncate table "client_collect_rates" at the same time.
