SQL: SP idempotency fix

Fixes #52

mysql-test/suite/versioning/r/auto_increment.result

@@ -93,7 +93,45 @@ A	x	y	x	y
 1	5	15	5	15
 1	6	16	6	16
 1	7	17	7	17
+call test_01('bigint unsigned', 'innodb', 'commit_ts(sys_end)');
+A	x	y	x	y
+1	1	11	1	11
+1	2	12	2	12
+1	3	13	3	13
+1	4	14	4	14
+1	5	15	5	15
+1	6	16	6	16
+1	7	17	7	17
+1	8	18	8	18
+1	9	19	9	19
+A	x	y	x	y
+1	1	11	1	11
+1	3	13	3	13
+1	4	14	4	14
+1	5	15	5	15
+1	6	16	6	16
+1	7	17	7	17
+1	8	18	8	18
+1	9	19	9	19
+A	x	y	x	y
+1	1	11	1	11
+1	3	13	3	13
+1	4	14	4	14
+1	5	15	5	15
+1	6	16	6	16
+1	7	17	7	17
 call verify_vtq;
 No	A	B	C	D
+1	1	1	1	1
+2	1	1	1	1
+3	1	1	1	1
+4	1	1	1	1
+5	1	1	1	1
+6	1	1	1	1
+7	1	1	1	1
+8	1	1	1	1
+9	1	1	1	1
+10	1	1	1	1
+11	1	1	1	1
 drop procedure test_01;
 drop procedure verify_vtq;

mysql-test/suite/versioning/t/auto_increment.test

@@ -60,8 +60,7 @@ end~~
 delimiter ;~~
 
 call test_01('timestamp(6)', 'myisam', 'sys_end');
-# Issue #52
+call test_01('bigint unsigned', 'innodb', 'commit_ts(sys_end)');
-# call test_01('bigint unsigned', 'innodb', 'commit_ts(sys_end)');
 call verify_vtq;
 
 drop procedure test_01;

sql/sql_select.cc

@@ -701,44 +701,54 @@ setup_for_system_time(THD *thd, TABLE_LIST *tables, COND **where_expr, SELECT_LE
   if (select_lex->saved_where)
   {
     DBUG_ASSERT(thd->stmt_arena->is_sp_execute());
-    *where_expr= select_lex->saved_where;
+    /* 2. this copy_andor_structure() is also required by the same reason */
+    *where_expr= select_lex->saved_where->copy_andor_structure(thd);
   }
   else if (thd->stmt_arena->is_sp_execute())
   {
     if (thd->stmt_arena->is_stmt_execute()) // SP executed second time (STMT_EXECUTED)
       *where_expr= 0;
     else if (*where_expr) // SP executed first time (STMT_INITIALIZED_FOR_SP)
-      /* copy_andor_structure() is required since this andor tree
+      /* 1. copy_andor_structure() is required since this andor tree
          is modified later (and on shorter arena) */
       select_lex->saved_where= (*where_expr)->copy_andor_structure(thd);
   }
 
+  /* We have to save also non-versioned on_expr since we may have
+     conjuction of versioned + non-versioned */
+  if (thd->stmt_arena->is_sp_execute())
+  {
+    for (table= tables; table; table= table->next_local)
+    {
+      if (!table->table)
+        continue;
+
+      if (table->saved_on_expr) // same logic as saved_where
+      {
+        if (table->on_expr)
+          table->on_expr= table->saved_on_expr->copy_andor_structure(thd);
+        else
+          // on_expr was moved to WHERE (see below: Add ON expression to the WHERE)
+          *where_expr= and_items(thd,
+            *where_expr,
+            table->saved_on_expr->copy_andor_structure(thd));
+      }
+      else if (table->on_expr &&
+        thd->stmt_arena->state == Query_arena::STMT_INITIALIZED_FOR_SP)
+      {
+        table->saved_on_expr= table->on_expr->copy_andor_structure(thd);
+      }
+    }
+  }
+
   for (table= tables; table; table= table->next_local)
   {
     if (table->table && table->table->versioned())
     {
       COND** dst_cond= where_expr;
-      if (table->saved_on_expr) // same logic as saved_where
+      if (table->on_expr)
-      {
-        DBUG_ASSERT(thd->stmt_arena->is_sp_execute());
-        if (table->on_expr)
-        {
-          table->on_expr= table->saved_on_expr;
-          dst_cond= &table->on_expr;
-        }
-        else
-        {
-          // on_expr was moved to WHERE (see below: Add ON expression to the WHERE)
-          *dst_cond= and_items(thd,
-            *where_expr,
-            table->saved_on_expr);
-        }
-      }
-      else if (table->on_expr)
       {
         dst_cond= &table->on_expr;
-        if (thd->stmt_arena->state == Query_arena::STMT_INITIALIZED_FOR_SP)
-          table->saved_on_expr= table->on_expr->copy_andor_structure(thd);
       }
 
       Field *fstart= table->table->vers_start_field();