LCOV - code coverage report
Current view: top level - src/include/optimizer - restrictinfo.h (source / functions) Coverage Total Hit
Test: PostgreSQL 20devel Lines: 100.0 % 10 10
Test Date: 2026-07-25 22:15:46 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                 :     1536595 : clause_sides_match_join(RestrictInfo *rinfo, Relids outerrelids,
      74                 :             :                         Relids innerrelids)
      75                 :             : {
      76   [ +  +  +  + ]:     2295602 :     if (bms_is_subset(rinfo->left_relids, outerrelids) &&
      77                 :      759007 :         bms_is_subset(rinfo->right_relids, innerrelids))
      78                 :             :     {
      79                 :             :         /* lefthand side is outer */
      80                 :      758701 :         rinfo->outer_is_left = true;
      81                 :      758701 :         return true;
      82                 :             :     }
      83   [ +  +  +  + ]:     1543084 :     else if (bms_is_subset(rinfo->left_relids, innerrelids) &&
      84                 :      765190 :              bms_is_subset(rinfo->right_relids, outerrelids))
      85                 :             :     {
      86                 :             :         /* righthand side is outer */
      87                 :      736197 :         rinfo->outer_is_left = false;
      88                 :      736197 :         return true;
      89                 :             :     }
      90                 :       41697 :     return false;               /* no good for these input relations */
      91                 :             : }
      92                 :             : 
      93                 :             : #endif                          /* RESTRICTINFO_H */
        

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