Array iterator functions have been removed as of PostgreSQL 7.4, because
equivalent functionality is now available built in to the backend.
For example, previously, using contrib/array, you might have used the
following construct:
create table t(id int4[], txt text[]);
-- select tuples with some id element equal to 123
select * from t where t.id *= 123;
Now you would do this instead:
-- select tuples with some id element equal to 123
select * from t where 123 = any (t.id);
-- or you could also do this
select * from t where 123 = some (t.id);
Similarly, if using contrib/array, you did the following:
-- select tuples with all txt elements matching '^[A-Z]'
select * from t where t.txt[1:3] **~ '^[A-Z]';
Now do this instead:
-- select tuples with all txt elements matching '^[A-Z]'
select * from t where '^[A-Z]' ~ all (t.txt[1:3]);
See the related section in the online documentation for more detail:
Table of Contents => Functions and Operators => Row and Array Comparisons
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