This is a full cost-based implementation of the optimization that emp…

…loys splitting technique for equi-joins of materialized derived tables/views/CTEs. (see mdev-13369 and mdev-13389).
MariaDB · Dec 30, 2017 · 4f0299f · 4f0299f
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diff --git a/libmysqld/CMakeLists.txt b/libmysqld/CMakeLists.txt
@@ -119,6 +119,7 @@ SET(SQL_EMBEDDED_SOURCES emb_qcache.cc libmysqld.c lib_sql.cc
            ../sql/session_tracker.cc
            ../sql/proxy_protocol.cc
            ../sql/sql_tvc.cc ../sql/sql_tvc.h
+           ../sql/opt_split.cc
            ${GEN_SOURCES}
            ${MYSYS_LIBWRAP_SOURCE}
 )