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, 674 insertions, 0 deletions

diff --git a/sql/sp.h b/sql/sp.h
new file mode 100644
index 00000000..e92525e1
--- /dev/null
+++ b/sql/sp.h
@@ -0,0 +1,674 @@
+/* -*- C++ -*- */
+/* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+   Copyright (c) 2009, 2020, MariaDB Corporation.
+
+   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 02110-1335  USA */
+
+#ifndef _SP_H_
+#define _SP_H_
+
+#include "my_global.h"                          /* NO_EMBEDDED_ACCESS_CHECKS */
+#include "sql_string.h"                         // LEX_STRING
+#include "sql_cmd.h"
+#include "mdl.h"
+
+class Field;
+class Open_tables_backup;
+class Open_tables_state;
+class Query_arena;
+class Query_tables_list;
+class Sroutine_hash_entry;
+class THD;
+class sp_cache;
+class sp_head;
+class sp_package;
+class sp_pcontext;
+class sp_name;
+class Database_qualified_name;
+struct st_sp_chistics;
+class Stored_program_creation_ctx;
+struct LEX;
+struct TABLE;
+struct TABLE_LIST;
+typedef struct st_hash HASH;
+template <typename T> class SQL_I_List;
+
+/*
+  Values for the type enum. This reflects the order of the enum declaration
+  in the CREATE TABLE command.
+  See also storage/perfschema/my_thread.h
+*/
+enum enum_sp_type
+{
+  SP_TYPE_FUNCTION=1,
+  SP_TYPE_PROCEDURE=2,
+  SP_TYPE_PACKAGE=3,
+  SP_TYPE_PACKAGE_BODY=4,
+  SP_TYPE_TRIGGER=5,
+  SP_TYPE_EVENT=6,
+};
+
+class Sp_handler
+{
+  bool sp_resolve_package_routine_explicit(THD *thd,
+                                           sp_head *caller,
+                                           sp_name *name,
+                                           const Sp_handler **pkg_routine_hndlr,
+                                           Database_qualified_name *pkgname)
+                                           const;
+  bool sp_resolve_package_routine_implicit(THD *thd,
+                                           sp_head *caller,
+                                           sp_name *name,
+                                           const Sp_handler **pkg_routine_hndlr,
+                                           Database_qualified_name *pkgname)
+                                           const;
+protected:
+  int db_find_routine_aux(THD *thd, const Database_qualified_name *name,
+                          TABLE *table) const;
+  int db_find_routine(THD *thd, const Database_qualified_name *name,
+                      sp_head **sphp) const;
+  int db_find_and_cache_routine(THD *thd,
+                                const Database_qualified_name *name,
+                                sp_head **sp) const;
+  int db_load_routine(THD *thd, const Database_qualified_name *name,
+                      sp_head **sphp,
+                      sql_mode_t sql_mode,
+                      const LEX_CSTRING &params,
+                      const LEX_CSTRING &returns,
+                      const LEX_CSTRING &body,
+                      const st_sp_chistics &chistics,
+                      const AUTHID &definer,
+                      longlong created, longlong modified,
+                      sp_package *parent,
+                      Stored_program_creation_ctx *creation_ctx) const;
+  int sp_drop_routine_internal(THD *thd,
+                               const Database_qualified_name *name,
+                               TABLE *table) const;
+
+  sp_head *sp_clone_and_link_routine(THD *thd,
+                                     const Database_qualified_name *name,
+                                     sp_head *sp) const;
+  int sp_cache_package_routine(THD *thd,
+                               const LEX_CSTRING &pkgname_cstr,
+                               const Database_qualified_name *name,
+                               bool lookup_only, sp_head **sp) const;
+  int sp_cache_package_routine(THD *thd,
+                               const Database_qualified_name *name,
+                               bool lookup_only, sp_head **sp) const;
+  sp_head *sp_find_package_routine(THD *thd,
+                                   const LEX_CSTRING pkgname_str,
+                                   const Database_qualified_name *name,
+                                   bool cache_only) const;
+  sp_head *sp_find_package_routine(THD *thd,
+                                   const Database_qualified_name *name,
+                                   bool cache_only) const;
+public: // TODO: make it private or protected
+  virtual int sp_find_and_drop_routine(THD *thd, TABLE *table,
+                                       const Database_qualified_name *name)
+                                       const;
+
+public:
+  virtual ~Sp_handler() {}
+  static const Sp_handler *handler(enum enum_sql_command cmd);
+  static const Sp_handler *handler(enum_sp_type type);
+  static const Sp_handler *handler(MDL_key::enum_mdl_namespace ns);
+  /*
+    Return a handler only those SP objects that store
+    definitions in the mysql.proc system table
+  */
+  static const Sp_handler *handler_mysql_proc(enum_sp_type type)
+  {
+    const Sp_handler *sph= handler(type);
+    return sph ? sph->sp_handler_mysql_proc() : NULL;
+  }
+
+  static bool eq_routine_name(const LEX_CSTRING &name1,
+                              const LEX_CSTRING &name2)
+  {
+    return system_charset_info->strnncoll(name1.str, name1.length,
+                                          name2.str, name2.length) == 0;
+  }
+  const char *type_str() const { return type_lex_cstring().str; }
+  virtual const char *show_create_routine_col1_caption() const
+  {
+    DBUG_ASSERT(0);
+    return "";
+  }
+  virtual const char *show_create_routine_col3_caption() const
+  {
+    DBUG_ASSERT(0);
+    return "";
+  }
+  virtual const Sp_handler *package_routine_handler() const
+  {
+    return this;
+  }
+  virtual enum_sp_type type() const= 0;
+  virtual LEX_CSTRING type_lex_cstring() const= 0;
+  virtual LEX_CSTRING empty_body_lex_cstring(sql_mode_t mode) const
+  {
+    static LEX_CSTRING m_empty_body= {STRING_WITH_LEN("???")};
+    DBUG_ASSERT(0);
+    return m_empty_body;
+  }
+  virtual MDL_key::enum_mdl_namespace get_mdl_type() const= 0;
+  virtual const Sp_handler *sp_handler_mysql_proc() const { return this; }
+  virtual sp_cache **get_cache(THD *) const { return NULL; }
+#ifndef NO_EMBEDDED_ACCESS_CHECKS
+  virtual HASH *get_priv_hash() const { return NULL; }
+#endif
+  virtual ulong recursion_depth(THD *thd) const { return 0; }
+  /**
+    Return appropriate error about recursion limit reaching
+
+    @param thd  Thread handle
+    @param sp   SP routine
+
+    @remark For functions and triggers we return error about
+            prohibited recursion. For stored procedures we
+            return about reaching recursion limit.
+  */
+  virtual void recursion_level_error(THD *thd, const sp_head *sp) const
+  {
+    my_error(ER_SP_NO_RECURSION, MYF(0));
+  }
+  virtual bool add_instr_freturn(THD *thd, sp_head *sp,
+                                 sp_pcontext *spcont,
+                                 Item *item, LEX *lex) const;
+  virtual bool add_instr_preturn(THD *thd, sp_head *sp,
+                                 sp_pcontext *spcont) const;
+
+  void add_used_routine(Query_tables_list *prelocking_ctx,
+                        Query_arena *arena,
+                        const Database_qualified_name *name) const;
+
+  bool sp_resolve_package_routine(THD *thd,
+                                  sp_head *caller,
+                                  sp_name *name,
+                                  const Sp_handler **pkg_routine_handler,
+                                  Database_qualified_name *pkgname) const;
+  virtual sp_head *sp_find_routine(THD *thd,
+                                   const Database_qualified_name *name,
+                                   bool cache_only) const;
+  virtual int sp_cache_routine(THD *thd, const Database_qualified_name *name,
+                               bool lookup_only, sp_head **sp) const;
+
+  int sp_cache_routine_reentrant(THD *thd,
+                                 const Database_qualified_name *nm,
+                                 sp_head **sp) const;
+
+  bool sp_exist_routines(THD *thd, TABLE_LIST *procs) const;
+  bool sp_show_create_routine(THD *thd,
+                              const Database_qualified_name *name) const;
+
+  bool sp_create_routine(THD *thd, const sp_head *sp) const;
+
+  int sp_update_routine(THD *thd, const Database_qualified_name *name,
+                        const st_sp_chistics *chistics) const;
+
+  int sp_drop_routine(THD *thd, const Database_qualified_name *name) const;
+
+  sp_head *sp_load_for_information_schema(THD *thd, TABLE *proc_table,
+                                          const LEX_CSTRING &db,
+                                          const LEX_CSTRING &name,
+                                          const LEX_CSTRING &params,
+                                          const LEX_CSTRING &returns,
+                                          sql_mode_t sql_mode,
+                                          bool *free_sp_head) const;
+
+  /*
+    Make a SHOW CREATE statement.
+      @retval   true on error
+      @retval   false on success
+  */
+  virtual bool show_create_sp(THD *thd, String *buf,
+                              const LEX_CSTRING &db,
+                              const LEX_CSTRING &name,
+                              const LEX_CSTRING &params,
+                              const LEX_CSTRING &returns,
+                              const LEX_CSTRING &body,
+                              const st_sp_chistics &chistics,
+                              const AUTHID &definer,
+                              const DDL_options_st ddl_options,
+                              sql_mode_t sql_mode) const;
+
+};
+
+
+class Sp_handler_procedure: public Sp_handler
+{
+public:
+  enum_sp_type type() const { return SP_TYPE_PROCEDURE; }
+  LEX_CSTRING type_lex_cstring() const
+  {
+    static LEX_CSTRING m_type_str= { STRING_WITH_LEN("PROCEDURE")};
+    return m_type_str;
+  }
+  LEX_CSTRING empty_body_lex_cstring(sql_mode_t mode) const;
+  const char *show_create_routine_col1_caption() const
+  {
+    return "Procedure";
+  }
+  const char *show_create_routine_col3_caption() const
+  {
+    return "Create Procedure";
+  }
+  MDL_key::enum_mdl_namespace get_mdl_type() const
+  {
+    return MDL_key::PROCEDURE;
+  }
+  const Sp_handler *package_routine_handler() const;
+  sp_cache **get_cache(THD *) const;
+#ifndef NO_EMBEDDED_ACCESS_CHECKS
+  HASH *get_priv_hash() const;
+#endif
+  ulong recursion_depth(THD *thd) const;
+  void recursion_level_error(THD *thd, const sp_head *sp) const;
+  bool add_instr_preturn(THD *thd, sp_head *sp, sp_pcontext *spcont) const;
+};
+
+
+class Sp_handler_package_procedure: public Sp_handler_procedure
+{
+public:
+  int sp_cache_routine(THD *thd, const Database_qualified_name *name,
+                       bool lookup_only, sp_head **sp) const
+  {
+    return sp_cache_package_routine(thd, name, lookup_only, sp);
+  }
+  sp_head *sp_find_routine(THD *thd,
+                           const Database_qualified_name *name,
+                           bool cache_only) const
+  {
+    return sp_find_package_routine(thd, name, cache_only);
+  }
+};
+
+
+class Sp_handler_function: public Sp_handler
+{
+public:
+  enum_sp_type type() const { return SP_TYPE_FUNCTION; }
+  LEX_CSTRING type_lex_cstring() const
+  {
+    static LEX_CSTRING m_type_str= { STRING_WITH_LEN("FUNCTION")};
+    return m_type_str;
+  }
+  LEX_CSTRING empty_body_lex_cstring(sql_mode_t mode) const;
+  const char *show_create_routine_col1_caption() const
+  {
+    return "Function";
+  }
+  const char *show_create_routine_col3_caption() const
+  {
+    return "Create Function";
+  }
+  MDL_key::enum_mdl_namespace get_mdl_type() const
+  {
+    return MDL_key::FUNCTION;
+  }
+  const Sp_handler *package_routine_handler() const;
+  sp_cache **get_cache(THD *) const;
+#ifndef NO_EMBEDDED_ACCESS_CHECKS
+  HASH *get_priv_hash() const;
+#endif
+  bool add_instr_freturn(THD *thd, sp_head *sp, sp_pcontext *spcont,
+                         Item *item, LEX *lex) const;
+};
+
+
+class Sp_handler_package_function: public Sp_handler_function
+{
+public:
+  int sp_cache_routine(THD *thd, const Database_qualified_name *name,
+                       bool lookup_only, sp_head **sp) const
+  {
+    return sp_cache_package_routine(thd, name, lookup_only, sp);
+  }
+  sp_head *sp_find_routine(THD *thd,
+                           const Database_qualified_name *name,
+                           bool cache_only) const
+  {
+    return sp_find_package_routine(thd, name, cache_only);
+  }
+};
+
+
+class Sp_handler_package: public Sp_handler
+{
+public:
+  bool show_create_sp(THD *thd, String *buf,
+                      const LEX_CSTRING &db,
+                      const LEX_CSTRING &name,
+                      const LEX_CSTRING &params,
+                      const LEX_CSTRING &returns,
+                      const LEX_CSTRING &body,
+                      const st_sp_chistics &chistics,
+                      const AUTHID &definer,
+                      const DDL_options_st ddl_options,
+                      sql_mode_t sql_mode) const;
+};
+
+
+class Sp_handler_package_spec: public Sp_handler_package
+{
+public: // TODO: make it private or protected
+  int sp_find_and_drop_routine(THD *thd, TABLE *table,
+                               const Database_qualified_name *name)
+                               const;
+public:
+  enum_sp_type type() const { return SP_TYPE_PACKAGE; }
+  LEX_CSTRING type_lex_cstring() const
+  {
+    static LEX_CSTRING m_type_str= {STRING_WITH_LEN("PACKAGE")};
+    return m_type_str;
+  }
+  LEX_CSTRING empty_body_lex_cstring(sql_mode_t mode) const
+  {
+    static LEX_CSTRING m_empty_body= {STRING_WITH_LEN("BEGIN END")};
+    return m_empty_body;
+  }
+  const char *show_create_routine_col1_caption() const
+  {
+    return "Package";
+  }
+  const char *show_create_routine_col3_caption() const
+  {
+    return "Create Package";
+  }
+  MDL_key::enum_mdl_namespace get_mdl_type() const
+  {
+    return MDL_key::PACKAGE_BODY;
+  }
+  sp_cache **get_cache(THD *) const;
+#ifndef NO_EMBEDDED_ACCESS_CHECKS
+  HASH *get_priv_hash() const;
+#endif
+};
+
+
+class Sp_handler_package_body: public Sp_handler_package
+{
+public:
+  enum_sp_type type() const { return SP_TYPE_PACKAGE_BODY; }
+  LEX_CSTRING type_lex_cstring() const
+  {
+    static LEX_CSTRING m_type_str= {STRING_WITH_LEN("PACKAGE BODY")};
+    return m_type_str;
+  }
+  LEX_CSTRING empty_body_lex_cstring(sql_mode_t mode) const
+  {
+    static LEX_CSTRING m_empty_body= {STRING_WITH_LEN("BEGIN END")};
+    return m_empty_body;
+  }
+  const char *show_create_routine_col1_caption() const
+  {
+    return "Package body";
+  }
+  const char *show_create_routine_col3_caption() const
+  {
+    return "Create Package Body";
+  }
+  MDL_key::enum_mdl_namespace get_mdl_type() const
+  {
+    return MDL_key::PACKAGE_BODY;
+  }
+  sp_cache **get_cache(THD *) const;
+#ifndef NO_EMBEDDED_ACCESS_CHECKS
+  HASH *get_priv_hash() const;
+#endif
+};
+
+
+class Sp_handler_trigger: public Sp_handler
+{
+public:
+  enum_sp_type type() const { return SP_TYPE_TRIGGER; }
+  LEX_CSTRING type_lex_cstring() const
+  {
+    static LEX_CSTRING m_type_str= { STRING_WITH_LEN("TRIGGER")};
+    return m_type_str;
+  }
+  MDL_key::enum_mdl_namespace get_mdl_type() const
+  {
+    DBUG_ASSERT(0);
+    return MDL_key::TRIGGER;
+  }
+  const Sp_handler *sp_handler_mysql_proc() const { return NULL; }
+};
+
+
+extern MYSQL_PLUGIN_IMPORT Sp_handler_function sp_handler_function;
+extern MYSQL_PLUGIN_IMPORT Sp_handler_procedure sp_handler_procedure;
+extern MYSQL_PLUGIN_IMPORT Sp_handler_package_spec sp_handler_package_spec;
+extern MYSQL_PLUGIN_IMPORT Sp_handler_package_body sp_handler_package_body;
+extern MYSQL_PLUGIN_IMPORT Sp_handler_package_function sp_handler_package_function;
+extern MYSQL_PLUGIN_IMPORT Sp_handler_package_procedure sp_handler_package_procedure;
+extern MYSQL_PLUGIN_IMPORT Sp_handler_trigger sp_handler_trigger;
+
+
+inline const Sp_handler *Sp_handler::handler(enum_sql_command cmd)
+{
+  switch (cmd) {
+  case SQLCOM_CREATE_PROCEDURE:
+  case SQLCOM_ALTER_PROCEDURE:
+  case SQLCOM_DROP_PROCEDURE:
+  case SQLCOM_SHOW_PROC_CODE:
+  case SQLCOM_SHOW_CREATE_PROC:
+  case SQLCOM_SHOW_STATUS_PROC:
+    return &sp_handler_procedure;
+  case SQLCOM_CREATE_SPFUNCTION:
+  case SQLCOM_ALTER_FUNCTION:
+  case SQLCOM_DROP_FUNCTION:
+  case SQLCOM_SHOW_FUNC_CODE:
+  case SQLCOM_SHOW_CREATE_FUNC:
+  case SQLCOM_SHOW_STATUS_FUNC:
+    return &sp_handler_function;
+  case SQLCOM_CREATE_PACKAGE:
+  case SQLCOM_DROP_PACKAGE:
+  case SQLCOM_SHOW_CREATE_PACKAGE:
+  case SQLCOM_SHOW_STATUS_PACKAGE:
+    return &sp_handler_package_spec;
+  case SQLCOM_CREATE_PACKAGE_BODY:
+  case SQLCOM_DROP_PACKAGE_BODY:
+  case SQLCOM_SHOW_CREATE_PACKAGE_BODY:
+  case SQLCOM_SHOW_STATUS_PACKAGE_BODY:
+  case SQLCOM_SHOW_PACKAGE_BODY_CODE:
+    return &sp_handler_package_body;
+  default:
+    break;
+  }
+  return NULL;
+}
+
+
+inline const Sp_handler *Sp_handler::handler(enum_sp_type type)
+{
+  switch (type) {
+  case SP_TYPE_PROCEDURE:
+    return &sp_handler_procedure;
+  case SP_TYPE_FUNCTION:
+    return &sp_handler_function;
+  case SP_TYPE_PACKAGE:
+    return &sp_handler_package_spec;
+  case SP_TYPE_PACKAGE_BODY:
+    return &sp_handler_package_body;
+  case SP_TYPE_TRIGGER:
+    return &sp_handler_trigger;
+  case SP_TYPE_EVENT:
+    break;
+  }
+  return NULL;
+}
+
+
+inline const Sp_handler *Sp_handler::handler(MDL_key::enum_mdl_namespace type)
+{
+  switch (type) {
+  case MDL_key::FUNCTION:
+    return &sp_handler_function;
+  case MDL_key::PROCEDURE:
+    return &sp_handler_procedure;
+  case MDL_key::PACKAGE_BODY:
+    return &sp_handler_package_body;
+  case MDL_key::BACKUP:
+  case MDL_key::SCHEMA:
+  case MDL_key::TABLE:
+  case MDL_key::TRIGGER:
+  case MDL_key::EVENT:
+  case MDL_key::USER_LOCK:
+  case MDL_key::NAMESPACE_END:
+    break;
+  }
+  return NULL;
+}
+
+
+/* Tells what SP_DEFAULT_ACCESS should be mapped to */
+#define SP_DEFAULT_ACCESS_MAPPING SP_CONTAINS_SQL
+
+// Return codes from sp_create_*, sp_drop_*, and sp_show_*:
+#define SP_OK                 0
+#define SP_KEY_NOT_FOUND     -1
+#define SP_OPEN_TABLE_FAILED -2
+#define SP_WRITE_ROW_FAILED  -3
+#define SP_DELETE_ROW_FAILED -4
+#define SP_GET_FIELD_FAILED  -5
+#define SP_PARSE_ERROR       -6
+#define SP_INTERNAL_ERROR    -7
+#define SP_NO_DB_ERROR       -8
+#define SP_BAD_IDENTIFIER    -9
+#define SP_BODY_TOO_LONG    -10
+#define SP_FLD_STORE_FAILED -11
+
+/* DB storage of Stored PROCEDUREs and FUNCTIONs */
+enum
+{
+  MYSQL_PROC_FIELD_DB = 0,
+  MYSQL_PROC_FIELD_NAME,
+  MYSQL_PROC_MYSQL_TYPE,
+  MYSQL_PROC_FIELD_SPECIFIC_NAME,
+  MYSQL_PROC_FIELD_LANGUAGE,
+  MYSQL_PROC_FIELD_ACCESS,
+  MYSQL_PROC_FIELD_DETERMINISTIC,
+  MYSQL_PROC_FIELD_SECURITY_TYPE,
+  MYSQL_PROC_FIELD_PARAM_LIST,
+  MYSQL_PROC_FIELD_RETURNS,
+  MYSQL_PROC_FIELD_BODY,
+  MYSQL_PROC_FIELD_DEFINER,
+  MYSQL_PROC_FIELD_CREATED,
+  MYSQL_PROC_FIELD_MODIFIED,
+  MYSQL_PROC_FIELD_SQL_MODE,
+  MYSQL_PROC_FIELD_COMMENT,
+  MYSQL_PROC_FIELD_CHARACTER_SET_CLIENT,
+  MYSQL_PROC_FIELD_COLLATION_CONNECTION,
+  MYSQL_PROC_FIELD_DB_COLLATION,
+  MYSQL_PROC_FIELD_BODY_UTF8,
+  MYSQL_PROC_FIELD_AGGREGATE,
+  MYSQL_PROC_FIELD_COUNT
+};
+
+/* Drop all routines in database 'db' */
+int
+sp_drop_db_routines(THD *thd, const char *db);
+
+/**
+   Acquires exclusive metadata lock on all stored routines in the
+   given database.
+
+   @param  thd  Thread handler
+   @param  db   Database name
+
+   @retval  false  Success
+   @retval  true   Failure
+ */
+bool lock_db_routines(THD *thd, const char *db);
+
+/**
+  Structure that represents element in the set of stored routines
+  used by statement or routine.
+*/
+
+class Sroutine_hash_entry
+{
+public:
+  /**
+    Metadata lock request for routine.
+    MDL_key in this request is also used as a key for set.
+  */
+  MDL_request mdl_request;
+  /**
+    Next element in list linking all routines in set. See also comments
+    for LEX::sroutine/sroutine_list and sp_head::m_sroutines.
+  */
+  Sroutine_hash_entry *next;
+  /**
+    Uppermost view which directly or indirectly uses this routine.
+    0 if routine is not used in view. Note that it also can be 0 if
+    statement uses routine both via view and directly.
+  */
+  TABLE_LIST *belong_to_view;
+  /**
+    This is for prepared statement validation purposes.
+    A statement looks up and pre-loads all its stored functions
+    at prepare. Later on, if a function is gone from the cache,
+    execute may fail.
+    Remember the version of sp_head at prepare to be able to
+    invalidate the prepared statement at execute if it
+    changes.
+  */
+  ulong m_sp_cache_version;
+
+  const Sp_handler *m_handler;
+
+  int sp_cache_routine(THD *thd, bool lookup_only, sp_head **sp) const;
+};
+
+
+bool sp_add_used_routine(Query_tables_list *prelocking_ctx, Query_arena *arena,
+                         const MDL_key *key,
+                         const Sp_handler *handler,
+                         TABLE_LIST *belong_to_view);
+void sp_remove_not_own_routines(Query_tables_list *prelocking_ctx);
+bool sp_update_sp_used_routines(HASH *dst, HASH *src);
+void sp_update_stmt_used_routines(THD *thd, Query_tables_list *prelocking_ctx,
+                                  HASH *src, TABLE_LIST *belong_to_view);
+void sp_update_stmt_used_routines(THD *thd, Query_tables_list *prelocking_ctx,
+                                  SQL_I_List<Sroutine_hash_entry> *src,
+                                  TABLE_LIST *belong_to_view);
+
+extern "C" uchar* sp_sroutine_key(const uchar *ptr, size_t *plen,
+                                  my_bool first);
+
+/*
+  Routines which allow open/lock and close mysql.proc table even when
+  we already have some tables open and locked.
+*/
+TABLE *open_proc_table_for_read(THD *thd);
+
+bool load_charset(MEM_ROOT *mem_root,
+                  Field *field,
+                  CHARSET_INFO *dflt_cs,
+                  CHARSET_INFO **cs);
+
+bool load_collation(MEM_ROOT *mem_root,
+                    Field *field,
+                    CHARSET_INFO *dflt_cl,
+                    CHARSET_INFO **cl);
+
+void sp_returns_type(THD *thd,
+                     String &result,
+                     const sp_head *sp);
+
+#endif /* _SP_H_ */