The following bug has been logged online:
Bug reference: 5115
Logged by: Vladimir Kokovic
Email address: vladimir.koko...@a-asoft.com
PostgreSQL version: PostgreSQL 8.4.
Operating system: Linux vlD-kuci 2.6.28-15-generic #52-Ubuntu SMP Wed Sep
9 10:49:34 UTC 2009 i686 GNU/Linux
Description: ADD UNIQUE table_constraint with expression
Details:
For ALTER TABLE ADD CONSTRAINT documentation says:
ADD table_constraint
This form adds a new constraint to a table using the same syntax as
CREATE TABLE.
But if expression is used in the constraint definition
server says:
# ALTER TABLE asoft_finansije.gk_promene ADD CONSTRAINT vk2
UNIQUE((substring(broj,10)),id)
asoft-# ;
ERROR: 42601: syntax error at or near "("
LINE 1: ...ft_finansije.gk_promene ADD CONSTRAINT vk2 UNIQUE((substring...
^
LOCATION: base_yyerror, scan.l:907
Create index is OK:
*# CREATE UNIQUE INDEX vk2 on
adefault_finansije.gk_promene((substring(broj,10)),id);
CREATE INDEX
(vl...@[local]:5432) 16:51:39 [asoft]
*#
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