LCOV - differential code coverage report
Current view: top level - src/backend/optimizer/util - extendplan.c (source / functions) Coverage Total Hit UNC GNC
Current: a2387c32f2f8a1643c7d71b951587e6bcb2d4744 vs 371a302eecdc82274b0ae2967d18fd726a0aa6a1 Lines: 30.6 % 62 19 43 19
Current Date: 2025-10-26 12:31:50 -0700 Functions: 50.0 % 4 2 2 2
Baseline: lcov-20251027-010456-baseline Branches: 25.0 % 32 8 24 8
Baseline Date: 2025-10-26 11:01:32 +1300 Line coverage date bins:
Legend: Lines:     hit not hit
Branches: + taken - not taken # not executed
(7,30] days: 30.6 % 62 19 43 19
Function coverage date bins:
(7,30] days: 50.0 % 4 2 2 2
Branch coverage date bins:
(7,30] days: 25.0 % 32 8 24 8

 Age         Owner                    Branch data    TLA  Line data    Source code
                                  1                 :                : /*-------------------------------------------------------------------------
                                  2                 :                :  *
                                  3                 :                :  * extendplan.c
                                  4                 :                :  *    Extend core planner objects with additional private state
                                  5                 :                :  *
                                  6                 :                :  * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
                                  7                 :                :  * Portions Copyright (c) 1994-5, Regents of the University of California
                                  8                 :                :  *
                                  9                 :                :  * The interfaces defined in this file make it possible for loadable
                                 10                 :                :  * modules to store their own private state inside of key planner data
                                 11                 :                :  * structures -- specifically, the PlannerGlobal, PlannerInfo, and
                                 12                 :                :  * RelOptInfo structures. This can make it much easier to write
                                 13                 :                :  * reasonably efficient planner extensions; for instance, code that
                                 14                 :                :  * uses set_join_pathlist_hook can arrange to compute a key intermediate
                                 15                 :                :  * result once per joinrel rather than on every call.
                                 16                 :                :  *
                                 17                 :                :  * IDENTIFICATION
                                 18                 :                :  *    src/backend/optimizer/util/extendplan.c
                                 19                 :                :  *
                                 20                 :                :  *-------------------------------------------------------------------------
                                 21                 :                :  */
                                 22                 :                : #include "postgres.h"
                                 23                 :                : 
                                 24                 :                : #include "optimizer/extendplan.h"
                                 25                 :                : #include "port/pg_bitutils.h"
                                 26                 :                : #include "utils/memutils.h"
                                 27                 :                : 
                                 28                 :                : static const char **PlannerExtensionNameArray = NULL;
                                 29                 :                : static int  PlannerExtensionNamesAssigned = 0;
                                 30                 :                : static int  PlannerExtensionNamesAllocated = 0;
                                 31                 :                : 
                                 32                 :                : /*
                                 33                 :                :  * Map the name of a planner extension to an integer ID.
                                 34                 :                :  *
                                 35                 :                :  * Within the lifetime of a particular backend, the same name will be mapped
                                 36                 :                :  * to the same ID every time. IDs are not stable across backends. Use the ID
                                 37                 :                :  * that you get from this function to call the remaining functions in this
                                 38                 :                :  * file.
                                 39                 :                :  */
                                 40                 :                : int
   20 rhaas@postgresql.org       41                 :GNC           6 : GetPlannerExtensionId(const char *extension_name)
                                 42                 :                : {
                                 43                 :                :     /* Search for an existing extension by this name; if found, return ID. */
                                 44         [ -  + ]:              6 :     for (int i = 0; i < PlannerExtensionNamesAssigned; ++i)
   20 rhaas@postgresql.org       45         [ #  # ]:UNC           0 :         if (strcmp(PlannerExtensionNameArray[i], extension_name) == 0)
                                 46                 :              0 :             return i;
                                 47                 :                : 
                                 48                 :                :     /* If there is no array yet, create one. */
   20 rhaas@postgresql.org       49         [ +  - ]:GNC           6 :     if (PlannerExtensionNameArray == NULL)
                                 50                 :                :     {
                                 51                 :              6 :         PlannerExtensionNamesAllocated = 16;
                                 52                 :              6 :         PlannerExtensionNameArray = (const char **)
                                 53                 :              6 :             MemoryContextAlloc(TopMemoryContext,
                                 54                 :                :                                PlannerExtensionNamesAllocated
                                 55                 :                :                                * sizeof(char *));
                                 56                 :                :     }
                                 57                 :                : 
                                 58                 :                :     /* If there's an array but it's currently full, expand it. */
                                 59         [ -  + ]:              6 :     if (PlannerExtensionNamesAssigned >= PlannerExtensionNamesAllocated)
                                 60                 :                :     {
   20 rhaas@postgresql.org       61                 :UNC           0 :         int         i = pg_nextpower2_32(PlannerExtensionNamesAssigned + 1);
                                 62                 :                : 
                                 63                 :              0 :         PlannerExtensionNameArray = (const char **)
                                 64                 :              0 :             repalloc(PlannerExtensionNameArray, i * sizeof(char *));
                                 65                 :              0 :         PlannerExtensionNamesAllocated = i;
                                 66                 :                :     }
                                 67                 :                : 
                                 68                 :                :     /* Assign and return new ID. */
   20 rhaas@postgresql.org       69                 :GNC           6 :     PlannerExtensionNameArray[PlannerExtensionNamesAssigned] = extension_name;
                                 70                 :              6 :     return PlannerExtensionNamesAssigned++;
                                 71                 :                : }
                                 72                 :                : 
                                 73                 :                : /*
                                 74                 :                :  * Store extension-specific state into a PlannerGlobal.
                                 75                 :                :  */
                                 76                 :                : void
   20 rhaas@postgresql.org       77                 :UNC           0 : SetPlannerGlobalExtensionState(PlannerGlobal *glob, int extension_id,
                                 78                 :                :                                void *opaque)
                                 79                 :                : {
                                 80         [ #  # ]:              0 :     Assert(extension_id >= 0);
                                 81                 :                : 
                                 82                 :                :     /* If there is no array yet, create one. */
                                 83         [ #  # ]:              0 :     if (glob->extension_state == NULL)
                                 84                 :                :     {
                                 85                 :                :         MemoryContext planner_cxt;
                                 86                 :                :         Size        sz;
                                 87                 :                : 
                                 88                 :              0 :         planner_cxt = GetMemoryChunkContext(glob);
                                 89                 :              0 :         glob->extension_state_allocated =
                                 90         [ #  # ]:              0 :             Max(4, pg_nextpower2_32(extension_id + 1));
                                 91                 :              0 :         sz = glob->extension_state_allocated * sizeof(void *);
                                 92                 :              0 :         glob->extension_state = MemoryContextAllocZero(planner_cxt, sz);
                                 93                 :                :     }
                                 94                 :                : 
                                 95                 :                :     /* If there's an array but it's currently full, expand it. */
                                 96         [ #  # ]:              0 :     if (extension_id >= glob->extension_state_allocated)
                                 97                 :                :     {
                                 98                 :                :         int         i;
                                 99                 :                : 
                                100                 :              0 :         i = pg_nextpower2_32(extension_id + 1);
                                101                 :              0 :         glob->extension_state = (void **)
                                102                 :              0 :             repalloc0(glob->extension_state,
                                103                 :              0 :                       glob->extension_state_allocated * sizeof(void *),
                                104                 :                :                       i * sizeof(void *));
                                105                 :              0 :         glob->extension_state_allocated = i;
                                106                 :                :     }
                                107                 :                : 
                                108                 :              0 :     glob->extension_state[extension_id] = opaque;
                                109                 :              0 : }
                                110                 :                : 
                                111                 :                : /*
                                112                 :                :  * Store extension-specific state into a PlannerInfo.
                                113                 :                :  */
                                114                 :                : void
   20 rhaas@postgresql.org      115                 :GNC          42 : SetPlannerInfoExtensionState(PlannerInfo *root, int extension_id,
                                116                 :                :                              void *opaque)
                                117                 :                : {
                                118         [ -  + ]:             42 :     Assert(extension_id >= 0);
                                119                 :                : 
                                120                 :                :     /* If there is no array yet, create one. */
                                121         [ +  + ]:             42 :     if (root->extension_state == NULL)
                                122                 :                :     {
                                123                 :                :         Size        sz;
                                124                 :                : 
                                125                 :             21 :         root->extension_state_allocated =
                                126         [ -  + ]:             21 :             Max(4, pg_nextpower2_32(extension_id + 1));
                                127                 :             21 :         sz = root->extension_state_allocated * sizeof(void *);
                                128                 :             21 :         root->extension_state = MemoryContextAllocZero(root->planner_cxt, sz);
                                129                 :                :     }
                                130                 :                : 
                                131                 :                :     /* If there's an array but it's currently full, expand it. */
                                132         [ -  + ]:             42 :     if (extension_id >= root->extension_state_allocated)
                                133                 :                :     {
                                134                 :                :         int         i;
                                135                 :                : 
   20 rhaas@postgresql.org      136                 :UNC           0 :         i = pg_nextpower2_32(extension_id + 1);
                                137                 :              0 :         root->extension_state = (void **)
                                138                 :              0 :             repalloc0(root->extension_state,
                                139                 :              0 :                       root->extension_state_allocated * sizeof(void *),
                                140                 :                :                       i * sizeof(void *));
                                141                 :              0 :         root->extension_state_allocated = i;
                                142                 :                :     }
                                143                 :                : 
   20 rhaas@postgresql.org      144                 :GNC          42 :     root->extension_state[extension_id] = opaque;
                                145                 :             42 : }
                                146                 :                : 
                                147                 :                : /*
                                148                 :                :  * Store extension-specific state into a RelOptInfo.
                                149                 :                :  */
                                150                 :                : void
   20 rhaas@postgresql.org      151                 :UNC           0 : SetRelOptInfoExtensionState(RelOptInfo *rel, int extension_id,
                                152                 :                :                             void *opaque)
                                153                 :                : {
                                154         [ #  # ]:              0 :     Assert(extension_id >= 0);
                                155                 :                : 
                                156                 :                :     /* If there is no array yet, create one. */
                                157         [ #  # ]:              0 :     if (rel->extension_state == NULL)
                                158                 :                :     {
                                159                 :                :         MemoryContext planner_cxt;
                                160                 :                :         Size        sz;
                                161                 :                : 
                                162                 :              0 :         planner_cxt = GetMemoryChunkContext(rel);
                                163                 :              0 :         rel->extension_state_allocated =
                                164         [ #  # ]:              0 :             Max(4, pg_nextpower2_32(extension_id + 1));
                                165                 :              0 :         sz = rel->extension_state_allocated * sizeof(void *);
                                166                 :              0 :         rel->extension_state = MemoryContextAllocZero(planner_cxt, sz);
                                167                 :                :     }
                                168                 :                : 
                                169                 :                :     /* If there's an array but it's currently full, expand it. */
                                170         [ #  # ]:              0 :     if (extension_id >= rel->extension_state_allocated)
                                171                 :                :     {
                                172                 :                :         int         i;
                                173                 :                : 
                                174                 :              0 :         i = pg_nextpower2_32(extension_id + 1);
                                175                 :              0 :         rel->extension_state = (void **)
                                176                 :              0 :             repalloc0(rel->extension_state,
                                177                 :              0 :                       rel->extension_state_allocated * sizeof(void *),
                                178                 :                :                       i * sizeof(void *));
                                179                 :              0 :         rel->extension_state_allocated = i;
                                180                 :                :     }
                                181                 :                : 
                                182                 :              0 :     rel->extension_state[extension_id] = opaque;
                                183                 :              0 : }
        

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