LCOV - code coverage report
Current view: top level - src/include/optimizer - restrictinfo.h (source / functions) Coverage Total Hit
Test: Code coverage Lines: 100.0 % 11 11
Test Date: 2026-01-26 10:56:24 Functions: 100.0 % 1 1
Legend: Lines:     hit not hit
Branches: + taken - not taken # not executed
Branches: 100.0 % 8 8

             Branch data     Line data    Source code
       1                 :             : /*-------------------------------------------------------------------------
       2                 :             :  *
       3                 :             :  * restrictinfo.h
       4                 :             :  *        prototypes for restrictinfo.c.
       5                 :             :  *
       6                 :             :  *
       7                 :             :  * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
       8                 :             :  * Portions Copyright (c) 1994, Regents of the University of California
       9                 :             :  *
      10                 :             :  * src/include/optimizer/restrictinfo.h
      11                 :             :  *
      12                 :             :  *-------------------------------------------------------------------------
      13                 :             :  */
      14                 :             : #ifndef RESTRICTINFO_H
      15                 :             : #define RESTRICTINFO_H
      16                 :             : 
      17                 :             : #include "nodes/pathnodes.h"
      18                 :             : 
      19                 :             : 
      20                 :             : /* Convenience macro for the common case of a valid-everywhere qual */
      21                 :             : #define make_simple_restrictinfo(root, clause)  \
      22                 :             :         make_restrictinfo(root, clause, true, false, false, false, 0, \
      23                 :             :                 NULL, NULL, NULL)
      24                 :             : 
      25                 :             : extern RestrictInfo *make_plain_restrictinfo(PlannerInfo *root,
      26                 :             :                                                                                          Expr *clause,
      27                 :             :                                                                                          Expr *orclause,
      28                 :             :                                                                                          bool is_pushed_down,
      29                 :             :                                                                                          bool has_clone,
      30                 :             :                                                                                          bool is_clone,
      31                 :             :                                                                                          bool pseudoconstant,
      32                 :             :                                                                                          Index security_level,
      33                 :             :                                                                                          Relids required_relids,
      34                 :             :                                                                                          Relids incompatible_relids,
      35                 :             :                                                                                          Relids outer_relids);
      36                 :             : extern RestrictInfo *make_restrictinfo(PlannerInfo *root,
      37                 :             :                                                                            Expr *clause,
      38                 :             :                                                                            bool is_pushed_down,
      39                 :             :                                                                            bool has_clone,
      40                 :             :                                                                            bool is_clone,
      41                 :             :                                                                            bool pseudoconstant,
      42                 :             :                                                                            Index security_level,
      43                 :             :                                                                            Relids required_relids,
      44                 :             :                                                                            Relids incompatible_relids,
      45                 :             :                                                                            Relids outer_relids);
      46                 :             : extern RestrictInfo *commute_restrictinfo(RestrictInfo *rinfo, Oid comm_op);
      47                 :             : extern bool restriction_is_or_clause(RestrictInfo *restrictinfo);
      48                 :             : extern bool restriction_is_securely_promotable(RestrictInfo *restrictinfo,
      49                 :             :                                                                                            RelOptInfo *rel);
      50                 :             : extern List *get_actual_clauses(List *restrictinfo_list);
      51                 :             : extern List *extract_actual_clauses(List *restrictinfo_list,
      52                 :             :                                                                         bool pseudoconstant);
      53                 :             : extern void extract_actual_join_clauses(List *restrictinfo_list,
      54                 :             :                                                                                 Relids joinrelids,
      55                 :             :                                                                                 List **joinquals,
      56                 :             :                                                                                 List **otherquals);
      57                 :             : extern bool join_clause_is_movable_to(RestrictInfo *rinfo, RelOptInfo *baserel);
      58                 :             : extern bool join_clause_is_movable_into(RestrictInfo *rinfo,
      59                 :             :                                                                                 Relids currentrelids,
      60                 :             :                                                                                 Relids current_and_outer);
      61                 :             : 
      62                 :             : /*
      63                 :             :  * clause_sides_match_join
      64                 :             :  *        Determine whether a join clause is of the right form to use in this join.
      65                 :             :  *
      66                 :             :  * We already know that the clause is a binary opclause referencing only the
      67                 :             :  * rels in the current join.  The point here is to check whether it has the
      68                 :             :  * form "outerrel_expr op innerrel_expr" or "innerrel_expr op outerrel_expr",
      69                 :             :  * rather than mixing outer and inner vars on either side.  If it matches,
      70                 :             :  * we set the transient flag outer_is_left to identify which side is which.
      71                 :             :  */
      72                 :             : static inline bool
      73                 :      161944 : clause_sides_match_join(RestrictInfo *rinfo, Relids outerrelids,
      74                 :             :                                                 Relids innerrelids)
      75                 :             : {
      76   [ +  +  +  + ]:      161944 :         if (bms_is_subset(rinfo->left_relids, outerrelids) &&
      77                 :       79346 :                 bms_is_subset(rinfo->right_relids, innerrelids))
      78                 :             :         {
      79                 :             :                 /* lefthand side is outer */
      80                 :       79273 :                 rinfo->outer_is_left = true;
      81                 :       79273 :                 return true;
      82                 :             :         }
      83   [ +  +  +  + ]:       82671 :         else if (bms_is_subset(rinfo->left_relids, innerrelids) &&
      84                 :       81366 :                          bms_is_subset(rinfo->right_relids, outerrelids))
      85                 :             :         {
      86                 :             :                 /* righthand side is outer */
      87                 :       77985 :                 rinfo->outer_is_left = false;
      88                 :       77985 :                 return true;
      89                 :             :         }
      90                 :        4686 :         return false;                           /* no good for these input relations */
      91                 :      161944 : }
      92                 :             : 
      93                 :             : #endif                                                  /* RESTRICTINFO_H */
        

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