pg_dump missed comments attached to primary key or unique constraints

(as distinct from their underlying indexes).  Per bug report from
Hiroshi Saito.

diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c
index 921db3e10bbc6aa69c3112a8885a4e7331cda5ff..c70fb5287a7560ad44c6523fbd814a3897bf1c8c 100644 (file)
--- a/src/bin/pg_dump/pg_dump.c
+++ b/src/bin/pg_dump/pg_dump.c
@@ -12,7 +12,7 @@
  *     by PostgreSQL
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.346 2003/08/28 20:21:34 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.347 2003/09/19 23:15:18 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -5506,6 +5506,7 @@ dumpIndexes(Archive *fout, TableInfo *tblinfo, int numTables)
        int                     i_indexrelname;
        int                     i_indexdef;
        int                     i_contype;
+       int                     i_conoid;
        int                     i_indkey;
        int                     i_indisclustered;
        int                     i_indnkeys;
@@ -5539,7 +5540,8 @@ dumpIndexes(Archive *fout, TableInfo *tblinfo, int numTables)
                                 "pg_catalog.pg_get_indexdef(i.indexrelid) as indexdef, "
                                                          "i.indkey, i.indisclustered, "
                                                          "t.relnatts as indnkeys, "
-                                                         "coalesce(c.contype, '0') as contype "
+                                                         "coalesce(c.contype, '0') as contype, "
+                                                         "coalesce(c.oid, '0') as conoid "
                                                          "FROM pg_catalog.pg_index i "
                                  "JOIN pg_catalog.pg_class t ON (t.oid = i.indexrelid) "
                                                          "LEFT JOIN pg_catalog.pg_depend d "
@@ -5560,7 +5562,8 @@ dumpIndexes(Archive *fout, TableInfo *tblinfo, int numTables)
                                                          "i.indkey, false as indisclustered, "
                                                          "t.relnatts as indnkeys, "
                                                          "CASE WHEN i.indisprimary THEN 'p'::char "
-                                                         "ELSE '0'::char END as contype "
+                                                         "ELSE '0'::char END as contype, "
+                                                         "0::oid as conoid "
                                                          "FROM pg_index i, pg_class t "
                                                          "WHERE t.oid = i.indexrelid "
                                                          "AND i.indrelid = '%s'::oid "
@@ -5581,6 +5584,7 @@ dumpIndexes(Archive *fout, TableInfo *tblinfo, int numTables)
                i_indexrelname = PQfnumber(res, "indexrelname");
                i_indexdef = PQfnumber(res, "indexdef");
                i_contype = PQfnumber(res, "contype");
+               i_conoid = PQfnumber(res, "conoid");
                i_indkey = PQfnumber(res, "indkey");
                i_indisclustered = PQfnumber(res, "indisclustered");
                i_indnkeys = PQfnumber(res, "indnkeys");
@@ -5591,6 +5595,7 @@ dumpIndexes(Archive *fout, TableInfo *tblinfo, int numTables)
                        const char *indexrelname = PQgetvalue(res, j, i_indexrelname);
                        const char *indexdef = PQgetvalue(res, j, i_indexdef);
                        char            contype = *(PQgetvalue(res, j, i_contype));
+                       const char *conoid = PQgetvalue(res, j, i_conoid);
                        bool            indisclustered = (PQgetvalue(res, j, i_indisclustered)[0] == 't');
 
                        resetPQExpBuffer(q);
@@ -5634,6 +5639,15 @@ dumpIndexes(Archive *fout, TableInfo *tblinfo, int numTables)
 
                                appendPQExpBuffer(q, ");\n");
 
+                               /* If the index is clustered, we need to record that. */
+                               if (indisclustered)
+                               {
+                                       appendPQExpBuffer(q, "\nALTER TABLE %s CLUSTER",
+                                                                         fmtId(tbinfo->relname));
+                                       appendPQExpBuffer(q, " ON %s;\n",
+                                                                         fmtId(indexrelname));
+                               }
+
                                /*
                                 * DROP must be fully qualified in case same name appears
                                 * in pg_catalog
@@ -5644,14 +5658,6 @@ dumpIndexes(Archive *fout, TableInfo *tblinfo, int numTables)
                                                                  fmtId(tbinfo->relname));
                                appendPQExpBuffer(delq, "DROP CONSTRAINT %s;\n",
                                                                  fmtId(indexrelname));
-                               /* If the index is clustered, we need to record that. */
-                               if (indisclustered)
-                               {
-                                       appendPQExpBuffer(q, "\nALTER TABLE %s CLUSTER",
-                                                                         fmtId(tbinfo->relname));
-                                       appendPQExpBuffer(q, " ON %s;\n",
-                                                                         fmtId(indexrelname));
-                               }
 
                                ArchiveEntry(fout, indexreloid,
                                                         indexrelname,
@@ -5664,6 +5670,17 @@ dumpIndexes(Archive *fout, TableInfo *tblinfo, int numTables)
                                for (k = 0; k < indnkeys; k++)
                                        free(indkeys[k]);
                                free(indkeys);
+
+                               /* Dump Constraint Comments */
+                               resetPQExpBuffer(q);
+                               appendPQExpBuffer(q, "CONSTRAINT %s ",
+                                                                 fmtId(indexrelname));
+                               appendPQExpBuffer(q, "ON %s",
+                                                                 fmtId(tbinfo->relname));
+                               dumpComment(fout, q->data,
+                                                       tbinfo->relnamespace->nspname,
+                                                       tbinfo->usename,
+                                                       conoid, "pg_constraint", 0, NULL);
                        }
                        else
                        {