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| author | Robert Haas <rhaas@postgresql.org> | 2015-09-17 11:24:49 -0400 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2015-09-17 11:27:06 -0400 |
| commit | 8dd401aa07b91d46f81e51321523864d32843523 (patch) | |
| tree | 6f4074de97647b077785649c11775a79101eb5b4 /src/include/nodes/nodeFuncs.h | |
| parent | 293fd7c77e40cdf06b7a9eb6db95379be8869b04 (diff) | |
Add new function planstate_tree_walker.
ExplainPreScanNode knows how to iterate over a generic tree of plan
states; factor that logic out into a separate walker function so that
other code, such as upcoming patches for parallel query, can also use
it.
Patch by me, reviewed by Tom Lane.
Diffstat (limited to 'src/include/nodes/nodeFuncs.h')
| -rw-r--r-- | src/include/nodes/nodeFuncs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/include/nodes/nodeFuncs.h b/src/include/nodes/nodeFuncs.h index 7b1b1d6dca9..36b5dac0c5a 100644 --- a/src/include/nodes/nodeFuncs.h +++ b/src/include/nodes/nodeFuncs.h @@ -63,4 +63,8 @@ extern Node *query_or_expression_tree_mutator(Node *node, Node *(*mutator) (), extern bool raw_expression_tree_walker(Node *node, bool (*walker) (), void *context); +struct PlanState; +extern bool planstate_tree_walker(struct PlanState *planstate, bool (*walker) (), + void *context); + #endif /* NODEFUNCS_H */ |