Add support for query key extraction

[com/gs-lite.git] / src / ftacmp / stream_query.h

diff --git a/src/ftacmp/stream_query.h b/src/ftacmp/stream_query.h
index 075d143..ae4b31e 100644 (file)
--- a/src/ftacmp/stream_query.h
+++ b/src/ftacmp/stream_query.h
@@ -36,7 +36,7 @@ public:
        std::vector<ospec_str *> output_specs;
        vector<qp_node *> output_operators;
 
-       int qhead;
+       int qhead;              // index of output operator
        std::vector<int> qtail;
 
        table_def *attributes;
@@ -129,6 +129,9 @@ public:
 
   table_def *get_output_tabledef();
 
+// get any inferred key definition, just a pass-through to the head _qpn method
+  std::vector<std::string> get_tbl_keys(std::vector<std::string> &partial_keys);
+
 //             Extract lfta components of the query
   std::vector<stream_query *> split_query(ext_fcn_list *Ext_fcns, table_list *Schema, bool &hfta_returned, ifq_t *ifdb, int n_virtual_ifaces, int hfta_parallelism, int hfta_idx);