Added a pre-query hook for processing states

This is used for setting up the query alias structure stuff for sampling
queries.

1 files changed, 4 insertions, 0 deletions

diff --git a/include/shard/TrieSpline.h b/include/shard/TrieSpline.h
index fb0ed70..2341751 100644
--- a/include/shard/TrieSpline.h
+++ b/include/shard/TrieSpline.h
@@ -305,6 +305,10 @@ public:
         return res;
     }
 
+    static void process_query_states(void *query_parms, std::vector<void*> shard_states, void *buff_state) {
+        return;
+    }
+
     static std::vector<Wrapped<R>> query(TrieSpline<R> *ts, void *q_state, void *parms) {
         std::vector<Wrapped<R>> records;
         auto p = (ts_range_query_parms<R> *) parms;