mariadb/sql/sp.h
unknown 8a9422bd2a Made FUNCTIONs work in insert and select queries, as well as nested function invocations.
Had to add a cahing mechanism which is in parts an ugly kludge, but it will be
reworked once the real SP caching is implemented.


mysql-test/r/sp.result:
  New function tests.
mysql-test/t/sp.test:
  New function tests.
sql/sp.cc:
  Big rehack of mysql.proc table usage strategy and adding a function cache
  mechanism, since we need to read used functions from the db before doing anything else
  when executing a query. (This cache is temporary and will probably be replaced by
  the real thing later.)
sql/sp.h:
  New (temporary) FUNCTION caching functions.
sql/sp_head.cc:
  Fixed some bugs in the function and procedure execution.
  Disabled some data collections that's not used at the moment.
sql/sp_head.h:
  Fixed some bugs in the function and procedure execution.
  Disabled some data collections that's not used at the moment.
sql/sql_class.h:
  Added SP function cache list to thd.
sql/sql_lex.cc:
  Added SP function name list to lex.
sql/sql_lex.h:
  Added SP function name list to lex.
sql/sql_parse.cc:
  Read used FUNCTIONs from db and cache them in thd before doing anything else
  in a query execution. (This is necessary since we can't open mysql.proc during
  query execution.)
sql/sql_yacc.yy:
  Collect used function names in lex.
2003-03-02 19:17:41 +01:00

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C++

/* -*- C++ -*- */
/* Copyright (C) 2002 MySQL AB
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; either version 2 of the License, or
(at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef _SP_H_
#define _SP_H_
// Return codes from sp_create_* and sp_drop_*:
#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
sp_head *
sp_find_procedure(THD *thd, LEX_STRING *name);
int
sp_create_procedure(THD *thd, char *name, uint namelen, char *def, uint deflen);
int
sp_drop_procedure(THD *thd, char *name, uint namelen);
sp_head *
sp_find_function(THD *thd, LEX_STRING *name);
int
sp_create_function(THD *thd, char *name, uint namelen, char *def, uint deflen);
int
sp_drop_function(THD *thd, char *name, uint namelen);
// QQ Temporary until the function call detection in sql_lex has been reworked.
bool
sp_function_exists(THD *thd, LEX_STRING *name);
// QQ More temporary stuff until the real cache is implemented. This is
// needed since we have to read the functions before we do anything else.
void
sp_add_fun_to_lex(LEX *lex, LEX_STRING fun);
void
sp_merge_funs(LEX *dst, LEX *src);
int
sp_cache_functions(THD *thd, LEX *lex);
void
sp_clear_function_cache(THD *thd);
#endif /* _SP_H_ */