The second cleanup patch in scope of BUG#11986.

1. Introduce parse_sql() as a high-level replacement for MYSQLparse().
parse_sql() is responsible to switch and restore "parser context"
(THD::m_lip for now).

2. Fix typo in sp.cc: THD::spcont should be reset *before* calling
the parser.


sql/event_data_objects.cc:
  Use parse_sql() instead of MYSQLparse().
sql/mysql_priv.h:
  Introduce parse_sql() instead of auto-generated MYSQLparse.
sql/sp.cc:
  1. Use parse_sql() instead of MYSQLparse().
  2. THD::spcont should be reset before calling the parser.
sql/sql_class.cc:
  Reset THD::m_lip.
sql/sql_parse.cc:
  1. Introduce parse_sql() instead of auto-generated MYSQLparse().
  2. Backup, switch and restore THD::m_lip inside parse_sql().
  3. Use parse_sql() instead of MYSQLparse().
sql/sql_partition.cc:
  Use parse_sql() instead of MYSQLparse().
sql/sql_prepare.cc:
  Use parse_sql() instead of MYSQLparse().
sql/sql_trigger.cc:
  Use parse_sql() instead of MYSQLparse().
sql/sql_view.cc:
  Use parse_sql() instead of MYSQLparse().

1 files changed, 3 insertions, 4 deletions

diff --git a/sql/sql_prepare.cc b/sql/sql_prepare.cc
index 716ca08beb1..2031f4b2448 100644
--- a/sql/sql_prepare.cc
+++ b/sql/sql_prepare.cc
@@ -2858,12 +2858,11 @@ bool Prepared_statement::prepare(const char *packet, uint packet_len)
 
   Lex_input_stream lip(thd, thd->query, thd->query_length);
   lip.stmt_prepare_mode= TRUE;
-  thd->m_lip= &lip;
   lex_start(thd);
-  int err= MYSQLparse((void *)thd);
 
-  error= err || thd->is_fatal_error ||
-      thd->net.report_error || init_param_array(this);
+  error= parse_sql(thd, &lip) ||
+         thd->net.report_error ||
+         init_param_array(this);
 
   /*
     While doing context analysis of the query (in check_prepared_statement)