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Minor mop-up for List improvements.

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Fix a few places that were using written-out versions of the
pg_list.h macros that commit cc99baa43 just improved, making them
also use those macros so as to gain whatever performance improvement
is to be had.

Discussion: https://postgr.es/m/CAApHDvpo1zj9KhEpU2cCRZfSM3Q6XGdhzuAS2v79PH7WJBkYVA@mail.gmail.com
This commit is contained in:
Tom Lane 2020-09-27 22:30:44 -04:00
parent 0baf82fa0c
commit 9d299a4924
3 changed files with 8 additions and 8 deletions
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2
src/backend/catalog/objectaddress.c
View File

@ -1506,7 +1506,7 @@ get_object_address_attribute(ObjectType objtype, List *object,
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("column name must be qualified")));
attname = strVal(lfirst(list_tail(object)));
attname = strVal(llast(object));
relname = list_truncate(list_copy(object), list_length(object) - 1);
/* XXX no missing_ok support here */
relation = relation_openrv(makeRangeVarFromNameList(relname), lockmode);

2
src/backend/commands/sequence.c
View File

@ -1668,7 +1668,7 @@ process_owned_by(Relation seqrel, List *owned_by, bool for_identity)
/* Separate relname and attr name */
relname = list_truncate(list_copy(owned_by), nnames - 1);
attrname = strVal(lfirst(list_tail(owned_by)));
attrname = strVal(llast(owned_by));
/* Open and lock rel to ensure it won't go away meanwhile */
rel = makeRangeVarFromNameList(relname);

12
src/backend/nodes/list.c
View File

@ -327,7 +327,7 @@ lappend(List *list, void *datum)
else
new_tail_cell(list);
lfirst(list_tail(list)) = datum;
llast(list) = datum;
check_list_invariants(list);
return list;
}
@ -345,7 +345,7 @@ lappend_int(List *list, int datum)
else
new_tail_cell(list);
lfirst_int(list_tail(list)) = datum;
llast_int(list) = datum;
check_list_invariants(list);
return list;
}
@ -363,7 +363,7 @@ lappend_oid(List *list, Oid datum)
else
new_tail_cell(list);
lfirst_oid(list_tail(list)) = datum;
llast_oid(list) = datum;
check_list_invariants(list);
return list;
}
@ -459,7 +459,7 @@ lcons(void *datum, List *list)
else
new_head_cell(list);
lfirst(list_head(list)) = datum;
linitial(list) = datum;
check_list_invariants(list);
return list;
}
@ -477,7 +477,7 @@ lcons_int(int datum, List *list)
else
new_head_cell(list);
lfirst_int(list_head(list)) = datum;
linitial_int(list) = datum;
check_list_invariants(list);
return list;
}
@ -495,7 +495,7 @@ lcons_oid(Oid datum, List *list)
else
new_head_cell(list);
lfirst_oid(list_head(list)) = datum;
linitial_oid(list) = datum;
check_list_invariants(list);
return list;
}