[glom/gtkmm4: 5/9] backends: libgdamm-6.0: Update the transaction type enum.

[Murray Cumming <murrayc src gnome org>]

commit ccc56a42f2b5c6fd6bf8e39da3f3e837b15cefeb
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Dec 16 16:43:51 2016 +0100

    backends: libgdamm-6.0: Update the transaction type enum.

 glom/libglom/connectionpool_backends/mysql.cc    |    2 +-
 glom/libglom/connectionpool_backends/postgres.cc |    2 +-
 glom/libglom/connectionpool_backends/sqlite.cc   |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/glom/libglom/connectionpool_backends/mysql.cc b/glom/libglom/connectionpool_backends/mysql.cc
index 0731236..bb34490 100644
--- a/glom/libglom/connectionpool_backends/mysql.cc
+++ b/glom/libglom/connectionpool_backends/mysql.cc
@@ -178,7 +178,7 @@ bool MySQL::change_columns(const Glib::RefPtr<Gnome::Gda::Connection>& connectio
 
   try
   {
-    connection->begin_transaction(TRANSACTION_NAME, Gnome::Gda::TRANSACTION_ISOLATION_UNKNOWN); // TODO: 
What does the transaction isolation do?
+    connection->begin_transaction(TRANSACTION_NAME, Gnome::Gda::TRANSACTION_ISOLATION_SERVER_DEFAULT); // 
TODO: What does the transaction isolation do?
   }
   catch(const Glib::Error& ex)
   {
diff --git a/glom/libglom/connectionpool_backends/postgres.cc 
b/glom/libglom/connectionpool_backends/postgres.cc
index 7d52dcd..7c63799 100644
--- a/glom/libglom/connectionpool_backends/postgres.cc
+++ b/glom/libglom/connectionpool_backends/postgres.cc
@@ -167,7 +167,7 @@ bool Postgres::change_columns(const Glib::RefPtr<Gnome::Gda::Connection>& connec
 
   try
   {
-    connection->begin_transaction(TRANSACTION_NAME, Gnome::Gda::TRANSACTION_ISOLATION_UNKNOWN); // TODO: 
What does the transaction isolation do?
+    connection->begin_transaction(TRANSACTION_NAME, Gnome::Gda::TRANSACTION_ISOLATION_SERVER_DEFAULT); // 
TODO: What does the transaction isolation do?
   }
   catch(const Glib::Error& ex)
   {
diff --git a/glom/libglom/connectionpool_backends/sqlite.cc b/glom/libglom/connectionpool_backends/sqlite.cc
index db9a596..b51ecb6 100644
--- a/glom/libglom/connectionpool_backends/sqlite.cc
+++ b/glom/libglom/connectionpool_backends/sqlite.cc
@@ -334,7 +334,7 @@ bool Sqlite::recreate_table(const Glib::RefPtr<Gnome::Gda::Connection>& connecti
 
   try
   {
-    connection->begin_transaction(TRANSACTION_NAME, Gnome::Gda::TRANSACTION_ISOLATION_UNKNOWN);
+    connection->begin_transaction(TRANSACTION_NAME, Gnome::Gda::TRANSACTION_ISOLATION_SERVER_DEFAULT);
   }
   catch(const Glib::Error& ex)
   {