I'd like to implement SQL99/200x ARRAY support (well, at least the
basics). Does anyone have objections to the following grammar/semantics?
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Per SQL200x - examples
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create table foo(f1 integer ARRAY[3]); result same as create table foo(f1 integer[3]); the 3 really does nothing
(thisdeviates from spec but is same as current implementation)
create table foo(f1 integer ARRAY); result same as create table foo(f1 integer[]);
select ARRAY[1,2,3]; result '{1,2,3}'
select ARRAY[(select oid from pg_class order by relname)]; result is array of all the oid's in pg_class in relname
order
select ARRAY[1,2] || 3 result '{1,2,3}'
select ARRAY[1,2] || ARRAY[3,4] result '{1,2,3,4}'
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Proposed PostgreSQL extensions
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select ARRAY[[1,2,3], [4,5,6]]; result '{{1,2,3},{4,5,6}}'
select ARRAY[[1,2],[3,4]] || 5 result '{{1},{3},{5}}'
select ARRAY[[1,2],[3,4]] || [5,6] result '{{1,2},{3,4},{5,6}}'
use UNION's algorithm for deriving the element type when not specified
Comments, suggestions, objections?
Thanks,
Joe
