LCOV - code coverage report
Current view: top level - src/bin/pg_upgrade - version.c (source / functions) Coverage Total Hit
Test: PostgreSQL 20devel Lines: 60.6 % 33 20
Test Date: 2026-07-16 11:17:59 Functions: 100.0 % 3 3
Legend: Lines:     hit not hit
Branches: + taken - not taken # not executed
Branches: 20.0 % 10 2

             Branch data     Line data    Source code
       1                 :             : /*
       2                 :             :  *  version.c
       3                 :             :  *
       4                 :             :  *  Postgres-version-specific routines
       5                 :             :  *
       6                 :             :  *  Copyright (c) 2010-2026, PostgreSQL Global Development Group
       7                 :             :  *  src/bin/pg_upgrade/version.c
       8                 :             :  */
       9                 :             : 
      10                 :             : #include "postgres_fe.h"
      11                 :             : 
      12                 :             : #include "fe_utils/string_utils.h"
      13                 :             : #include "pg_upgrade.h"
      14                 :             : 
      15                 :             : /*
      16                 :             :  * Older servers can't support newer protocol versions, so their connection
      17                 :             :  * strings will need to lock max_protocol_version to 3.0.
      18                 :             :  */
      19                 :             : bool
      20                 :         729 : protocol_negotiation_supported(const ClusterInfo *cluster)
      21                 :             : {
      22                 :             :     /*
      23                 :             :      * The February 2018 patch release (9.3.21, 9.4.16, 9.5.11, 9.6.7, and
      24                 :             :      * 10.2) added support for NegotiateProtocolVersion. But ClusterInfo only
      25                 :             :      * has information about the major version number. To ensure we can still
      26                 :             :      * upgrade older unpatched servers, just assume anything prior to PG11
      27                 :             :      * can't negotiate. It's not possible for those servers to make use of
      28                 :             :      * newer protocols anyway, so nothing is lost.
      29                 :             :      */
      30                 :         729 :     return (GET_MAJOR_VERSION(cluster->major_version) >= 1100);
      31                 :             : }
      32                 :             : 
      33                 :             : /*
      34                 :             :  * Callback function for processing results of query for
      35                 :             :  * report_extension_updates()'s UpgradeTask.  If the query returned any rows,
      36                 :             :  * write the details to the report file.
      37                 :             :  */
      38                 :             : static void
      39                 :          32 : process_extension_updates(DbInfo *dbinfo, PGresult *res, void *arg)
      40                 :             : {
      41                 :          32 :     int         ntups = PQntuples(res);
      42                 :          32 :     int         i_name = PQfnumber(res, "name");
      43                 :          32 :     UpgradeTaskReport *report = (UpgradeTaskReport *) arg;
      44                 :             :     PQExpBufferData connectbuf;
      45                 :             : 
      46         [ +  - ]:          32 :     if (ntups == 0)
      47                 :          32 :         return;
      48                 :             : 
      49         [ #  # ]:           0 :     if (report->file == NULL &&
      50         [ #  # ]:           0 :         (report->file = fopen_priv(report->path, "w")) == NULL)
      51                 :           0 :         pg_fatal("could not open file \"%s\": %m", report->path);
      52                 :             : 
      53                 :           0 :     initPQExpBuffer(&connectbuf);
      54                 :           0 :     appendPsqlMetaConnect(&connectbuf, dbinfo->db_name);
      55                 :           0 :     fputs(connectbuf.data, report->file);
      56                 :           0 :     termPQExpBuffer(&connectbuf);
      57                 :             : 
      58         [ #  # ]:           0 :     for (int rowno = 0; rowno < ntups; rowno++)
      59                 :           0 :         fprintf(report->file, "ALTER EXTENSION %s UPDATE;\n",
      60                 :           0 :                 quote_identifier(PQgetvalue(res, rowno, i_name)));
      61                 :             : }
      62                 :             : 
      63                 :             : /*
      64                 :             :  * report_extension_updates()
      65                 :             :  *  Report extensions that should be updated.
      66                 :             :  */
      67                 :             : void
      68                 :          10 : report_extension_updates(ClusterInfo *cluster)
      69                 :             : {
      70                 :             :     UpgradeTaskReport report;
      71                 :          10 :     UpgradeTask *task = upgrade_task_create();
      72                 :          10 :     const char *query = "SELECT name "
      73                 :             :         "FROM pg_available_extensions "
      74                 :             :         "WHERE installed_version != default_version";
      75                 :             : 
      76                 :          10 :     prep_status("Checking for extension updates");
      77                 :             : 
      78                 :          10 :     report.file = NULL;
      79                 :          10 :     strcpy(report.path, "update_extensions.sql");
      80                 :             : 
      81                 :          10 :     upgrade_task_add_step(task, query, process_extension_updates,
      82                 :             :                           true, &report);
      83                 :             : 
      84                 :          10 :     upgrade_task_run(task, cluster);
      85                 :          10 :     upgrade_task_free(task);
      86                 :             : 
      87         [ -  + ]:          10 :     if (report.file)
      88                 :             :     {
      89                 :           0 :         fclose(report.file);
      90                 :           0 :         report_status(PG_REPORT, "notice");
      91                 :           0 :         pg_log(PG_REPORT, "\n"
      92                 :             :                "Your installation contains extensions that should be updated\n"
      93                 :             :                "with the ALTER EXTENSION command.  The file\n"
      94                 :             :                "    %s\n"
      95                 :             :                "when executed by psql by the database superuser will update\n"
      96                 :             :                "these extensions.",
      97                 :             :                report.path);
      98                 :             :     }
      99                 :             :     else
     100                 :          10 :         check_ok();
     101                 :          10 : }
        

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