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src/include/optimizer/subselect.h
47 строк
2 KB
Richard Guo
Convert NOT IN sublinks to anti-joins when safe
12 мар 2026, 03:45
12 мар 2026, 03:45
383eb21
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/*------------------------------------------------------------------------- * * subselect.h * Planning routines for subselects. * * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/optimizer/subselect.h * *------------------------------------------------------------------------- */ #ifndef SUBSELECT_H #define SUBSELECT_H #include "nodes/pathnodes.h" #include "nodes/plannodes.h" extern void SS_process_ctes(PlannerInfo *root); extern ScalarArrayOpExpr *convert_VALUES_to_ANY(PlannerInfo *root, Node *testexpr, Query *values); extern JoinExpr *convert_ANY_sublink_to_join(PlannerInfo *root, SubLink *sublink, bool under_not, Relids available_rels); extern JoinExpr *convert_EXISTS_sublink_to_join(PlannerInfo *root, SubLink *sublink, bool under_not, Relids available_rels); extern Node *SS_replace_correlation_vars(PlannerInfo *root, Node *expr); extern Node *SS_process_sublinks(PlannerInfo *root, Node *expr, bool isQual); extern void SS_identify_outer_params(PlannerInfo *root); extern void SS_charge_for_initplans(PlannerInfo *root, RelOptInfo *final_rel); extern void SS_compute_initplan_cost(List *init_plans, Cost *initplan_cost_p, bool *unsafe_initplans_p); extern void SS_attach_initplans(PlannerInfo *root, Plan *plan); extern void SS_finalize_plan(PlannerInfo *root, Plan *plan); extern Param *SS_make_initplan_output_param(PlannerInfo *root, Oid resulttype, int32 resulttypmod, Oid resultcollation); extern void SS_make_initplan_from_plan(PlannerInfo *root, PlannerInfo *subroot, Plan *plan, Param *prm); #endif /* SUBSELECT_H */