Move indexes from model scope to table scope

Conceptually, indexes belong to tables and some databases (MySQL, MSSQL)
indeed treat them as such (i.e., you can have indexes with the same name
in different tables).

1 files changed, 6 insertions, 2 deletions

diff --git a/odb/relational/pgsql/schema.cxx b/odb/relational/pgsql/schema.cxx
index c774561..2113894 100644
--- a/odb/relational/pgsql/schema.cxx
+++ b/odb/relational/pgsql/schema.cxx
@@ -173,9 +173,13 @@ namespace relational
         virtual string
         name (sema_rel::index& in)
         {
-          // In PostgreSQL indexes cannot have a schema.
+          // In PostgreSQL, index names are database-global. Make them unique
+          // by prefixing the index name with table name. Note, however, that
+          // they cannot be qualified with the schema name.
           //
-          return quote_id (in.name ().uname ());
+          return quote_id (
+            static_cast<sema_rel::table&> (in.scope ()).name ().uname ()
+            + "_" + in.name ());
         }
       };
       entry<create_index> create_index_;