database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-09-08 00:47:37 +03:00
Code Activity

Improve castNode notation by introducing list-extraction-specific variants.

Browse Source 
This extends the castNode() notation introduced by commit 5bcab1114 to
provide, in one step, extraction of a list cell's pointer and coercion to
a concrete node type.  For example, "lfirst_node(Foo, lc)" is the same
as "castNode(Foo, lfirst(lc))".  Almost half of the uses of castNode
that have appeared so far include a list extraction call, so this is
pretty widely useful, and it saves a few more keystrokes compared to the
old way.

As with the previous patch, back-patch the addition of these macros to
pg_list.h, so that the notation will be available when back-patching.

Patch by me, after an idea of Andrew Gierth's.

Discussion: https://postgr.es/m/14197.1491841216@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2017-04-10 13:51:29 -04:00
parent 56dd8e85c4
commit 8f0530f580
65 changed files with 176 additions and 168 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/backend/optimizer/path/indxpath.c
View File

@@ -1277,7 +1277,7 @@ generate_bitmap_or_paths(PlannerInfo *root, RelOptInfo *rel,
foreach(lc, clauses)
{
RestrictInfo *rinfo = castNode(RestrictInfo, lfirst(lc));
RestrictInfo *rinfo = lfirst_node(RestrictInfo, lc);
List *pathlist;
Path *bitmapqual;
ListCell *j;
@@ -2188,7 +2188,7 @@ match_clauses_to_index(IndexOptInfo *index,
foreach(lc, clauses)
{
RestrictInfo *rinfo = castNode(RestrictInfo, lfirst(lc));
RestrictInfo *rinfo = lfirst_node(RestrictInfo, lc);
match_clause_to_index(index, rinfo, clauseset);
}