Remove unnecessary unused MATCH PARTIAL code

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ri_triggers.c spends a lot of space catering to a not-yet-implemented
MATCH PARTIAL option.  An actual implementation would probably not use
the existing code structure anyway, so let's just simplify this for
now.

First, have ri_FetchConstraintInfo() check that riinfo->confmatchtype
is valid.  Then we don't have to repeat that everywhere.

In the various referential action functions, we don't need to pay
attention to the match type at all right now, so remove all that code.
A future MATCH PARTIAL implementation would probably have some
conditions added to the present code, but it won't need an entirely
separate switch branch in each case.

In RI_FKey_fk_upd_check_required(), reorganize the code to make it
much simpler.

Reviewed-by: Corey Huinker <corey.huinker@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/0ccdd3e1-10b0-dd05-d8a7-183507c11eb1%402ndquadrant.com

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This commit is contained in:

Peter Eisentraut 2019-02-28 10:54:44 +01:00

parent 22c0d52b8d

commit 0afdecc1e5

1 changed files with 461 additions and 677 deletions

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src/backend/utils/adt/ri_triggers.c

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