Missing initialization of system.schema_columnfamilies.key_validator field

[slivne]

JavaDriver requires the field to exist

Applying this hack - allows the driver to boot.

shlomi@localhost~/urchin (master)$ git diff
diff --git a/db/legacy_schema_tables.cc b/db/legacy_schema_tables.cc
index 463210c..b0d90a2 100644
--- a/db/legacy_schema_tables.cc
+++ b/db/legacy_schema_tables.cc
@@ -1024,6 +1024,7 @@ std::vector<const char*> ALL { KEYSPACES, COLUMNFAMILIES, COLUMNS, TRIGGERS, USE
adder.add("compaction_strategy_class", table.compactionStrategyClass.getName());
adder.add("compaction_strategy_options", json(table.compactionStrategyOptions));
#endif

•    m.set_clustered_cell(ckey, "key_validator", sstring("org.apache.cassandra.db.marshal.UTF8Type"), timestamp);
   const auto& compression_options = table->get_compressor_params();
   m.set_clustered_cell(ckey, "compression_parameters", json::to_json(compression_options.get_options()), timestamp);
   m.set_clustered_cell(ckey, "default_time_to_live", table->default_time_to_live().count(), timestamp)