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Made FUNCTIONs work in insert and select queries, as well as nested function invocations.

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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.
This commit is contained in:
unknown
2003-03-02 19:17:41 +01:00
parent 1ff79b61a0
commit 8a9422bd2a
11 changed files with 259 additions and 41 deletions
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12
sql/sql_parse.cc
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@@ -1583,6 +1583,18 @@ mysql_execute_command(THD *thd)
SELECT_LEX_UNIT *unit= &lex->unit;
DBUG_ENTER("mysql_execute_command");
/*
Clear the SP function cache before each statement (QQ this is a temporary
solution; caching will be rehacked later), and the new ones.
*/
sp_clear_function_cache(thd);
if (lex->sql_command != SQLCOM_CREATE_PROCEDURE &&
lex->sql_command != SQLCOM_CREATE_FUNCTION)
{
if (sp_cache_functions(thd, lex))
DBUG_RETURN(-1);
}
/*
Reset warning count for each query that uses tables
A better approach would be to reset this for any commands