Re: SQL:2011 application time

hi.

* The attached patch makes foreign keys with PERIOD fail if any of the
foreign key columns is "generated columns".

* The following queries will cause segmentation fault. not sure the
best way to fix it. the reason
in LINE: numpks = transformColumnNameList(RelationGetRelid(pkrel),
fkconstraint->pk_attrs, pkattnum, pktypoid);
begin;
drop table if exists temporal3,temporal_fk_rng2rng;
CREATE TABLE temporal3 (id int4range,valid_at tsrange,
CONSTRAINT temporal3_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS));
CREATE TABLE temporal_fk_rng2rng (
id int4range,valid_at tsrange,parent_id int4range,
CONSTRAINT temporal_fk_rng2rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS),
CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at)
REFERENCES temporal3 (id, valid_at)
);

* change the function FindFKComparisonOperators's "eqstrategy"  to
make pg_constraint record correct {conpfeqop,conppeqop,conffeqop}.

* fix the ON DELETE SET NULL/DEFAULT (columnlist). Now the following
queries error will be more consistent.
ALTER TABLE temporal_fk_rng2rng DROP CONSTRAINT temporal_fk_rng2rng_fk,
ADD CONSTRAINT temporal_fk_rng2rng_fk
FOREIGN KEY (parent_id, PERIOD valid_at) REFERENCES temporal_rng
ON DELETE SET DEFAULT(valid_at);
--ON DELETE SET NULL(valid_at);

* refactor restrict_cascading_range function.

* you did if (numfks != numpks) before if (is_temporal) {numfks +=
1;}, So I changed the code order to make the error report more
consistent.

anyway, I put it in one patch. please check the attached.