MDEV-8715 - Obsolete sql_alloc() in favor of THD::alloc() and thd_alloc()

The following left in semi-improved state to keep patch size reasonable:
- Field operator new: left thd_alloc(current_thd)
- Sql_alloc operator new: left thd_alloc(thd_get_current_thd())
- Item_args constructors: left thd_alloc(thd)
- Item_func_interval::fix_length_and_dec(): no THD arg, have to call current_thd
- Item_func_dyncol_exists::val_int(): same
- Item_dyncol_get::val_str(): same
- Item_dyncol_get::val_int(): same
- Item_dyncol_get::val_real(): same
- Item_dyncol_get::val_decimal(): same
- Item_singlerow_subselect::fix_length_and_dec(): same

1 files changed, 0 insertions, 10 deletions

diff --git a/client/mysqlbinlog.cc b/client/mysqlbinlog.cc
index 1284f520ea1..5b07232f65c 100644
--- a/client/mysqlbinlog.cc
+++ b/client/mysqlbinlog.cc
@@ -2443,9 +2443,6 @@ end:
   return retval;
 }
 
-/* Used in sql_alloc(). Inited and freed in main() */
-MEM_ROOT s_mem_root;
-
 int main(int argc, char** argv)
 {
   char **defaults_argv;
@@ -2458,7 +2455,6 @@ int main(int argc, char** argv)
   my_init_time(); // for time functions
   tzset(); // set tzname
 
-  init_alloc_root(&s_mem_root, 16384, 0, MYF(0));
   if (load_defaults("my", load_groups, &argc, &argv))
     exit(1);
 
@@ -2569,7 +2565,6 @@ int main(int argc, char** argv)
     my_fclose(result_file, MYF(0));
   cleanup();
   free_annotate_event();
-  free_root(&s_mem_root, MYF(0));
   free_defaults(defaults_argv);
   my_free_open_file_info();
   load_processor.destroy();
@@ -2582,11 +2577,6 @@ int main(int argc, char** argv)
 }
 
 
-void *sql_alloc(size_t size)
-{
-  return alloc_root(&s_mem_root, size);
-}
-
 struct encryption_service_st encryption_handler=
 {
   0, 0, 0, 0, 0, 0, 0