Fix assorted places in psql to print version numbers >= 10 in new style.

This is somewhat cosmetic, since as long as you know what you are looking
at, "10.0" is a serviceable substitute for "10".  But there is a potential
for confusion between version numbers with minor numbers and those without
--- we don't want people asking "why is psql saying 10.0 when my server is
10.2".  Therefore, back-patch as far as practical, which turns out to be
9.3.  I could have redone the patch to use fprintf(stderr) in place of
psql_error(), but it seems more work than is warranted for branches that
will be EOL or nearly so by the time v10 comes out.

Although only psql seems to contain any code that needs this, I chose
to put the support function into fe_utils, since it seems likely we'll
need it in other client programs in future.  (In 9.3-9.5, use dumputils.c,
the predecessor of fe_utils/string_utils.c.)

In HEAD, also fix the backend code that whines about loadable-library
version mismatch.  I don't see much need to back-patch that.

diff --git a/src/bin/pg_dump/dumputils.c b/src/bin/pg_dump/dumputils.c
index 8d06e6a5931c9e3fdebdea4ed43b4ecfa8965182..216d7bc6f59ffa4f5b0e770809211b68b8e28afd 100644 (file)
--- a/src/bin/pg_dump/dumputils.c
+++ b/src/bin/pg_dump/dumputils.c
@@ -178,6 +178,44 @@ fmtQualifiedId(int remoteVersion, const char *schema, const char *id)
        return id_return->data;
 }
 
+/*
+ * Format a Postgres version number (in the PG_VERSION_NUM integer format
+ * returned by PQserverVersion()) as a string.  This exists mainly to
+ * encapsulate knowledge about two-part vs. three-part version numbers.
+ *
+ * For re-entrancy, caller must supply the buffer the string is put in.
+ * Recommended size of the buffer is 32 bytes.
+ *
+ * Returns address of 'buf', as a notational convenience.
+ */
+char *
+formatPGVersionNumber(int version_number, bool include_minor,
+                                         char *buf, size_t buflen)
+{
+       if (version_number >= 100000)
+       {
+               /* New two-part style */
+               if (include_minor)
+                       snprintf(buf, buflen, "%d.%d", version_number / 10000,
+                                        version_number % 10000);
+               else
+                       snprintf(buf, buflen, "%d", version_number / 10000);
+       }
+       else
+       {
+               /* Old three-part style */
+               if (include_minor)
+                       snprintf(buf, buflen, "%d.%d.%d", version_number / 10000,
+                                        (version_number / 100) % 100,
+                                        version_number % 100);
+               else
+                       snprintf(buf, buflen, "%d.%d", version_number / 10000,
+                                        (version_number / 100) % 100);
+       }
+       return buf;
+}
+
+
 /*
  * Convert a string value to an SQL string literal and append it to
  * the given buffer.  We assume the specified client_encoding and

diff --git a/src/bin/pg_dump/dumputils.h b/src/bin/pg_dump/dumputils.h
index b8ebc5444b4c591ddd31c3ecedfaf9db08fa9c6f..f1d1af6dab1924c285bda576a85b2f87aabc70d8 100644 (file)
--- a/src/bin/pg_dump/dumputils.h
+++ b/src/bin/pg_dump/dumputils.h
@@ -72,6 +72,8 @@ extern PQExpBuffer (*getLocalPQExpBuffer) (void);
 extern const char *fmtId(const char *identifier);
 extern const char *fmtQualifiedId(int remoteVersion,
                           const char *schema, const char *id);
+extern char *formatPGVersionNumber(int version_number, bool include_minor,
+                                         char *buf, size_t buflen);
 extern void appendStringLiteral(PQExpBuffer buf, const char *str,
                                        int encoding, bool std_strings);
 extern void appendStringLiteralConn(PQExpBuffer buf, const char *str,

diff --git a/src/bin/psql/command.c b/src/bin/psql/command.c
index 4537a7220a831d84b47f0ebaae76d3db0e4e22d9..19ac065530d01a636adc0e253df8bf05c0484946 100644 (file)
--- a/src/bin/psql/command.c
+++ b/src/bin/psql/command.c
@@ -608,8 +608,11 @@ exec_command(const char *cmd,
 
                if (pset.sversion < 80400)
                {
-                       psql_error("The server (version %d.%d) does not support editing function source.\n",
-                                          pset.sversion / 10000, (pset.sversion / 100) % 100);
+                       char            sverbuf[32];
+
+                       psql_error("The server (version %s) does not support editing function source.\n",
+                                          formatPGVersionNumber(pset.sversion, false,
+                                                                                        sverbuf, sizeof(sverbuf)));
                        status = PSQL_CMD_ERROR;
                }
                else if (!query_buf)
@@ -1238,8 +1241,11 @@ exec_command(const char *cmd,
                                                                          OT_WHOLE_LINE, NULL, true);
                if (pset.sversion < 80400)
                {
-                       psql_error("The server (version %d.%d) does not support showing function source.\n",
-                                          pset.sversion / 10000, (pset.sversion / 100) % 100);
+                       char            sverbuf[32];
+
+                       psql_error("The server (version %s) does not support showing function source.\n",
+                                          formatPGVersionNumber(pset.sversion, false,
+                                                                                        sverbuf, sizeof(sverbuf)));
                        status = PSQL_CMD_ERROR;
                }
                else if (!func)
@@ -1863,22 +1869,21 @@ connection_warnings(bool in_startup)
        if (!pset.quiet && !pset.notty)
        {
                int                     client_ver = PG_VERSION_NUM;
+               char            cverbuf[32];
+               char            sverbuf[32];
 
                if (pset.sversion != client_ver)
                {
                        const char *server_version;
-                       char            server_ver_str[16];
 
                        /* Try to get full text form, might include "devel" etc */
                        server_version = PQparameterStatus(pset.db, "server_version");
+                       /* Otherwise fall back on pset.sversion */
                        if (!server_version)
                        {
-                               snprintf(server_ver_str, sizeof(server_ver_str),
-                                                "%d.%d.%d",
-                                                pset.sversion / 10000,
-                                                (pset.sversion / 100) % 100,
-                                                pset.sversion % 100);
-                               server_version = server_ver_str;
+                               formatPGVersionNumber(pset.sversion, true,
+                                                                         sverbuf, sizeof(sverbuf));
+                               server_version = sverbuf;
                        }
 
                        printf(_("%s (%s, server %s)\n"),
@@ -1889,10 +1894,13 @@ connection_warnings(bool in_startup)
                        printf("%s (%s)\n", pset.progname, PG_VERSION);
 
                if (pset.sversion / 100 > client_ver / 100)
-                       printf(_("WARNING: %s major version %d.%d, server major version %d.%d.\n"
+                       printf(_("WARNING: %s major version %s, server major version %s.\n"
                                         "         Some psql features might not work.\n"),
-                                pset.progname, client_ver / 10000, (client_ver / 100) % 100,
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+                                  pset.progname,
+                                  formatPGVersionNumber(client_ver, false,
+                                                                                cverbuf, sizeof(cverbuf)),
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
 
 #ifdef WIN32
                checkWin32Codepage();

diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c
index 39c88fce7de7b23ed5653dace0fbe782e2409dd7..b5c06f1d48e4ac48bd397062415dce9a96721fcf 100644 (file)
--- a/src/bin/psql/common.c
+++ b/src/bin/psql/common.c
@@ -23,6 +23,7 @@
 #include "settings.h"
 #include "command.h"
 #include "copy.h"
+#include "dumputils.h"
 #include "mbprint.h"
 
 
@@ -1037,8 +1038,11 @@ SendQuery(const char *query)
        {
                if (on_error_rollback_warning == false && pset.sversion < 80000)
                {
-                       psql_error("The server (version %d.%d) does not support savepoints for ON_ERROR_ROLLBACK.\n",
-                                          pset.sversion / 10000, (pset.sversion / 100) % 100);
+                       char            sverbuf[32];
+
+                       psql_error("The server (version %s) does not support savepoints for ON_ERROR_ROLLBACK.\n",
+                                          formatPGVersionNumber(pset.sversion, false,
+                                                                                        sverbuf, sizeof(sverbuf)));
                        on_error_rollback_warning = true;
                }
                else

diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index c42ad0418b0d8691ace351f8c901d5d1b82ee2c3..de72b9a5ae01f2940c2bc2fd4e651fa535d34275 100644 (file)
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -141,8 +141,11 @@ describeTablespaces(const char *pattern, bool verbose)
 
        if (pset.sversion < 80000)
        {
-               psql_error("The server (version %d.%d) does not support tablespaces.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support tablespaces.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -244,8 +247,11 @@ describeFunctions(const char *functypes, const char *pattern, bool verbose, bool
 
        if (showWindow && pset.sversion < 80400)
        {
-               psql_error("\\df does not take a \"w\" option with server version %d.%d\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("\\df does not take a \"w\" option with server version %s\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -870,8 +876,11 @@ listDefaultACLs(const char *pattern)
 
        if (pset.sversion < 90000)
        {
-               psql_error("The server (version %d.%d) does not support altering default privileges.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support altering default privileges.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -3453,8 +3462,11 @@ listCollations(const char *pattern, bool verbose, bool showSystem)
 
        if (pset.sversion < 90100)
        {
-               psql_error("The server (version %d.%d) does not support collations.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support collations.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -3585,8 +3597,11 @@ listTSParsers(const char *pattern, bool verbose)
 
        if (pset.sversion < 80300)
        {
-               psql_error("The server (version %d.%d) does not support full text search.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support full text search.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -3820,8 +3835,11 @@ listTSDictionaries(const char *pattern, bool verbose)
 
        if (pset.sversion < 80300)
        {
-               psql_error("The server (version %d.%d) does not support full text search.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support full text search.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -3888,8 +3906,11 @@ listTSTemplates(const char *pattern, bool verbose)
 
        if (pset.sversion < 80300)
        {
-               psql_error("The server (version %d.%d) does not support full text search.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support full text search.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -3956,8 +3977,11 @@ listTSConfigs(const char *pattern, bool verbose)
 
        if (pset.sversion < 80300)
        {
-               psql_error("The server (version %d.%d) does not support full text search.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support full text search.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -4154,8 +4178,11 @@ listForeignDataWrappers(const char *pattern, bool verbose)
 
        if (pset.sversion < 80400)
        {
-               psql_error("The server (version %d.%d) does not support foreign-data wrappers.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support foreign-data wrappers.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -4234,8 +4261,11 @@ listForeignServers(const char *pattern, bool verbose)
 
        if (pset.sversion < 80400)
        {
-               psql_error("The server (version %d.%d) does not support foreign servers.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support foreign servers.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -4313,8 +4343,11 @@ listUserMappings(const char *pattern, bool verbose)
 
        if (pset.sversion < 80400)
        {
-               psql_error("The server (version %d.%d) does not support user mappings.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support user mappings.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -4371,8 +4404,11 @@ listForeignTables(const char *pattern, bool verbose)
 
        if (pset.sversion < 90100)
        {
-               psql_error("The server (version %d.%d) does not support foreign tables.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support foreign tables.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -4446,8 +4482,11 @@ listExtensions(const char *pattern)
 
        if (pset.sversion < 90100)
        {
-               psql_error("The server (version %d.%d) does not support extensions.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support extensions.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }
 
@@ -4500,8 +4539,11 @@ listExtensionContents(const char *pattern)
 
        if (pset.sversion < 90100)
        {
-               psql_error("The server (version %d.%d) does not support extensions.\n",
-                                  pset.sversion / 10000, (pset.sversion / 100) % 100);
+               char            sverbuf[32];
+
+               psql_error("The server (version %s) does not support extensions.\n",
+                                  formatPGVersionNumber(pset.sversion, false,
+                                                                                sverbuf, sizeof(sverbuf)));
                return true;
        }