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authorTom Lane2017-04-10 17:51:29 +0000
committerTom Lane2017-04-10 17:51:53 +0000
commit8f0530f58061b185dc385df42e62d78a18d4ae3e (patch)
tree63d038ae4012dcdcff3b556dde4c654959f8448e /src/backend/executor/nodeModifyTable.c
parent56dd8e85c40fef3e3c2c10afa186ee30416ec507 (diff)
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/[email protected]
Diffstat (limited to 'src/backend/executor/nodeModifyTable.c')
-rw-r--r--src/backend/executor/nodeModifyTable.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/executor/nodeModifyTable.c b/src/backend/executor/nodeModifyTable.c
index 00b736c22c..71e3b8ec2d 100644
--- a/src/backend/executor/nodeModifyTable.c
+++ b/src/backend/executor/nodeModifyTable.c
@@ -1968,7 +1968,7 @@ ExecInitModifyTable(ModifyTable *node, EState *estate, int eflags)
*/
foreach(l, node->rowMarks)
{
- PlanRowMark *rc = castNode(PlanRowMark, lfirst(l));
+ PlanRowMark *rc = lfirst_node(PlanRowMark, l);
ExecRowMark *erm;
/* ignore "parent" rowmarks; they are irrelevant at runtime */