greenplumn joinpartprune 源码
greenplumn joinpartprune 代码
文件路径：/src/include/optimizer/joinpartprune.h
/*-------------------------------------------------------------------------
*
* joinpartprune.h
* Transforms to produce plans that achieve join partition pruning
*
* Portions Copyright (c) 2011-2013, EMC Corporation
* Portions Copyright (c) 2012-Present VMware, Inc. or its affiliates.
*
*
* IDENTIFICATION
* src/include/optimizer/joinpartprune.h
*
*-------------------------------------------------------------------------
*/
#ifndef JOINPARTPRUNE_H
#define JOINPARTPRUNE_H
#include "nodes/pathnodes.h"
#include "nodes/plannodes.h"
extern void push_partition_selector_candidate_for_join(PlannerInfo *root,
JoinPath *join_path);
extern bool pop_and_inject_partition_selectors(PlannerInfo *root,
JoinPath *jpath);
extern List *make_partition_join_pruneinfos(struct PlannerInfo *root,
struct RelOptInfo *parentrel,
List *subpaths,
List *partitioned_rels);
extern Plan *create_partition_selector_plan(PlannerInfo *root, PartitionSelectorPath *pspath);
#endif /* JOINPARTPRUNE_H */
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