Re: Syntax problem with INDEX on expression

Mike Blackwell <mike.blackwell@rrd.com> wrote:

> sp_dev=# create index test_idx on test
((xpath('//rms:xsid/text()',udh,array[array['rms','http://www.example.com']]))[1]::text);
> ERROR:  syntax error at or near "["
> LINE 1: ...udh,array[array['rms','http://www.example.com']]))[1]::text)...
>                                                              ^
> It looks like it doesn't like the array subscript.  What might I be missing?

You're missing a set of parentheses around the entire expression.

create index test_idx on test
(((xpath('//rms:xsid/text()',udh,array[array['rms','http://www.example.com']]))[1]::text));

--
Kevin Grittner
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company