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/*------------------------------------------------------------------------- * * paramassign.h * Functions for assigning PARAM_EXEC slots during planning. * * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/optimizer/paramassign.h * *------------------------------------------------------------------------- */ #ifndef PARAMASSIGN_H #define PARAMASSIGN_H #include "nodes/relation.h" extern Param *replace_outer_var(PlannerInfo *root, Var *var); extern Param *replace_outer_placeholdervar(PlannerInfo *root, PlaceHolderVar *phv); extern Param *replace_outer_agg(PlannerInfo *root, Aggref *agg); extern Param *replace_outer_grouping(PlannerInfo *root, GroupingFunc *grp); extern Param *replace_nestloop_param_var(PlannerInfo *root, Var *var); extern Param *replace_nestloop_param_placeholdervar(PlannerInfo *root, PlaceHolderVar *phv); extern void process_subquery_nestloop_params(PlannerInfo *root, List *subplan_params); extern List *identify_current_nestloop_params(PlannerInfo *root, Relids leftrelids); extern Param *generate_new_exec_param(PlannerInfo *root, Oid paramtype, int32 paramtypmod, Oid paramcollation); extern int assign_special_exec_param(PlannerInfo *root); #endif /* PARAMASSIGN_H */