Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 74 insertions, 0 deletions

diff --git a/sql/sql_tvc.h b/sql/sql_tvc.h
new file mode 100644
index 00000000..b5b8b979
--- /dev/null
+++ b/sql/sql_tvc.h
@@ -0,0 +1,74 @@
+/* Copyright (c) 2017, MariaDB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+#ifndef SQL_TVC_INCLUDED
+#define SQL_TVC_INCLUDED
+#include "sql_type.h"
+
+typedef List<Item> List_item;
+typedef bool (Item::*Item_processor) (void *arg);
+class select_result;
+class Explain_select;
+class Explain_query;
+class Item_func_in;
+class st_select_lex_unit;
+typedef class st_select_lex SELECT_LEX;
+
+/**
+  @class table_value_constr
+  @brief Definition of a Table Value Construction(TVC)
+	
+  It contains a list of lists of values which this TVC is defined by and
+  reference on SELECT where this TVC is defined.
+*/
+class table_value_constr : public Sql_alloc
+{
+public:
+  List<List_item> lists_of_values;
+  select_result *result;
+  SELECT_LEX *select_lex;
+
+  enum { QEP_NOT_PRESENT_YET, QEP_AVAILABLE} have_query_plan;
+
+  Explain_select *explain;
+  ulonglong select_options;
+  
+  table_value_constr(List<List_item> tvc_values, SELECT_LEX *sl,
+		     ulonglong select_options_arg) :
+    lists_of_values(tvc_values), result(0), select_lex(sl),
+    have_query_plan(QEP_NOT_PRESENT_YET), explain(0),
+    select_options(select_options_arg)
+  { };
+
+  ha_rows get_records() { return lists_of_values.elements; }
+  
+  bool prepare(THD *thd_arg, SELECT_LEX *sl, 
+	       select_result *tmp_result,
+	       st_select_lex_unit *unit_arg);
+
+  bool to_be_wrapped_as_with_tail();
+
+  int save_explain_data_intern(THD *thd_arg,
+			       Explain_query *output);
+  bool optimize(THD *thd_arg);
+  bool exec(SELECT_LEX *sl);
+
+  void print(THD *thd_arg, String *str, enum_query_type query_type);
+  bool walk_values(Item_processor processor, bool walk_subquery, void *arg);
+};
+
+st_select_lex *wrap_tvc_with_tail(THD *thd, st_select_lex *tvc_sl);
+
+#endif /* SQL_TVC_INCLUDED */