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pgsql/include/server/optimizer/placeholder.h
37 строк
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AoAnima
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13 июл 2026, 17:47
13 июл 2026, 17:47
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/*------------------------------------------------------------------------- * * placeholder.h * prototypes for optimizer/util/placeholder.c. * * * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/optimizer/placeholder.h * *------------------------------------------------------------------------- */ #ifndef PLACEHOLDER_H #define PLACEHOLDER_H #include "nodes/pathnodes.h" extern PlaceHolderVar *make_placeholder_expr(PlannerInfo *root, Expr *expr, Relids phrels); extern PlaceHolderInfo *find_placeholder_info(PlannerInfo *root, PlaceHolderVar *phv); extern void find_placeholders_in_jointree(PlannerInfo *root); extern void fix_placeholder_input_needed_levels(PlannerInfo *root); extern void rebuild_placeholder_attr_needed(PlannerInfo *root); extern void add_placeholders_to_base_rels(PlannerInfo *root); extern void add_placeholders_to_joinrel(PlannerInfo *root, RelOptInfo *joinrel, RelOptInfo *outer_rel, RelOptInfo *inner_rel, SpecialJoinInfo *sjinfo); extern bool contain_placeholder_references_to(PlannerInfo *root, Node *clause, int relid); extern Relids get_placeholder_nulling_relids(PlannerInfo *root, PlaceHolderInfo *phinfo); extern Node *strip_noop_phvs(Node *node); #endif /* PLACEHOLDER_H */