Bug#23240 --init_file statements with NOW() reports '1970-01-01 11:00:00'as the date time

- Starting time of a query sent by bootstrapping wasn't initialized
  and starting time defaulted to 0. This later used value by NOW-
  item and was translated to 1970-01-01 11:00:00.
- Marketing the time with thd->set_time() before the call to
  mysql_parse resolves this issue.
- set_time was refactored to be part of the thd->init_for_queries-
  process.


mysql-test/r/init_file.result:
  Manual merge from 4.1
mysql-test/std_data/init_file.dat:
  Manual merge from 4.1
sql/sql_class.cc:
  - Moved set_time into init_for_queries process.

mysql-test/r/init_file.result

+INSERT INTO init_file.startup VALUES ( NOW() );
+SELECT * INTO @X FROM init_file.startup limit 0,1;
+SELECT * INTO @Y FROM init_file.startup limit 1,1;
+SELECT YEAR(@X)-YEAR(@Y);
+YEAR(@X)-YEAR(@Y)
+0
+DROP DATABASE init_file;
 ok
 end of 4.1 tests
 select * from t1;

mysql-test/std_data/init_file.dat

@@ -27,3 +27,12 @@ insert into t2 values (11), (13);
 drop procedure p1;
 drop function f1;
 drop view v1;
+
+#
+# Bug#23240 --init-file statements with NOW() reports '1970-01-01 11:00:00'as the date time
+#
+CREATE DATABASE IF NOT EXISTS init_file;
+CREATE TABLE IF NOT EXISTS init_file.startup ( startdate DATETIME );
+INSERT INTO init_file.startup VALUES ( NOW() );
+
+

sql/sql_class.cc

@@ -317,6 +317,7 @@ void THD::init(void)
 
 void THD::init_for_queries()
 {
+  set_time(); 
   ha_enable_transaction(this,TRUE);
 
   reset_root_defaults(mem_root, variables.query_alloc_block_size,

sql/sql_parse.cc

@@ -1160,7 +1160,6 @@ pthread_handler_t handle_one_connection(void *arg)
     thd->version= refresh_version;
     thd->proc_info= 0;
     thd->command= COM_SLEEP;
-    thd->set_time();
     thd->init_for_queries();
 
     if (sys_init_connect.value_length && !(sctx->master_access & SUPER_ACL))
@@ -1176,7 +1175,6 @@ pthread_handler_t handle_one_connection(void *arg)
         sql_print_warning("%s", net->last_error);
       }
       thd->proc_info=0;
-      thd->set_time();
       thd->init_for_queries();
     }
 
@@ -1306,6 +1304,7 @@ pthread_handler_t handle_bootstrap(void *arg)
       mode we have only one thread.
     */
     thd->query_id=next_query_id();
+    thd->set_time();
     mysql_parse(thd,thd->query,length);
     close_thread_tables(thd);			// Free tables
     if (thd->is_fatal_error)