database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-15 19:21:59 +03:00
Code Activity

Allow whole-row Vars to be used in partitioning expressions.

Browse Source 
In the wake of commit 5b9312378, there's no particular reason
for this restriction (previously, it was problematic because of
the implied rowtype reference).  A simple constraint on a whole-row
Var probably isn't that useful, but conceivably somebody would want
to pass one to a function that extracts a partitioning key.  Besides
which, we're expending much more code to enforce the restriction than
we save by having it, since the latter quantity is now zero.
So drop the restriction.

Amit Langote

Discussion: https://postgr.es/m/CA+HiwqFUzjfj9HEsJtYWcr1SgQ_=iCAvQ=O2Sx6aQxoDu4OiHw@mail.gmail.com
This commit is contained in:
Tom Lane
2019-12-25 15:44:15 -05:00
parent 42f74f4936
commit bb4114a4e2
8 changed files with 64 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/backend/partitioning/partbounds.c
View File

@ -1247,7 +1247,7 @@ check_default_partition_contents(Relation parent, Relation default_rel,
*/
def_part_constraints =
map_partition_varattnos(def_part_constraints, 1, default_rel,
parent, NULL);
parent);
/*
* If the existing constraints on the default partition imply that it will
@ -1297,7 +1297,7 @@ check_default_partition_contents(Relation parent, Relation default_rel,
partition_constraint = make_ands_explicit(def_part_constraints);
partition_constraint = (Expr *)
map_partition_varattnos((List *) partition_constraint, 1,
part_rel, default_rel, NULL);
part_rel, default_rel);
/*
* If the partition constraints on default partition child imply