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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2017-04-10 13:51:29 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2017-04-10 13:51:53 -0400 |
| commit | 8f0530f58061b185dc385df42e62d78a18d4ae3e (patch) | |
| tree | 63d038ae4012dcdcff3b556dde4c654959f8448e /contrib/postgres_fdw/postgres_fdw.c | |
| parent | 56dd8e85c40fef3e3c2c10afa186ee30416ec507 (diff) | |
| download | postgresql-8f0530f58061b185dc385df42e62d78a18d4ae3e.tar.gz postgresql-8f0530f58061b185dc385df42e62d78a18d4ae3e.zip | |
Improve castNode notation by introducing list-extraction-specific variants.
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
Diffstat (limited to 'contrib/postgres_fdw/postgres_fdw.c')
| -rw-r--r-- | contrib/postgres_fdw/postgres_fdw.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/contrib/postgres_fdw/postgres_fdw.c b/contrib/postgres_fdw/postgres_fdw.c index 2851869932d..6670df5c6e9 100644 --- a/contrib/postgres_fdw/postgres_fdw.c +++ b/contrib/postgres_fdw/postgres_fdw.c @@ -1169,7 +1169,7 @@ postgresGetForeignPlan(PlannerInfo *root, */ foreach(lc, scan_clauses) { - RestrictInfo *rinfo = castNode(RestrictInfo, lfirst(lc)); + RestrictInfo *rinfo = lfirst_node(RestrictInfo, lc); /* Ignore any pseudoconstants, they're dealt with elsewhere */ if (rinfo->pseudoconstant) @@ -5022,8 +5022,8 @@ conversion_error_callback(void *arg) EState *estate = fsstate->ss.ps.state; TargetEntry *tle; - tle = castNode(TargetEntry, list_nth(fsplan->fdw_scan_tlist, - errpos->cur_attno - 1)); + tle = list_nth_node(TargetEntry, fsplan->fdw_scan_tlist, + errpos->cur_attno - 1); /* * Target list can have Vars and expressions. For Vars, we can get |