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Implement MarkM optimization request to avoid redundnat packet exchange

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in cursors.


libmysql/libmysql.c:
  - reset_stmt_handle(): don't reset the server side just because we have 
    an open cursor: the server will close the cursor automatically if 
    needed
sql/sql_prepare.cc:
  - implement Prepared_statement::close_cursor,
  - implicitly close an open cursor in mysql_stmt_execute instead of 
    issuing an error (to reduce the need to explicitly close cursors
    and save network bandwidth).
  - cleanup
sql/sql_select.cc:
  Remove a destructor: cursor destruction can not be done by simply
  calling a destructor, because of cross-references between cursor
  and statement memory.
sql/sql_select.h:
  - add an empty Cursor destructor
tests/mysql_client_test.c:
  - remove a test for dropped functionality
This commit is contained in:
unknown
2005-07-14 15:27:24 +04:00
parent 8ba10fa95b
commit fd9f67f8d2
5 changed files with 34 additions and 45 deletions
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6
sql/sql_select.cc
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@ -1915,12 +1915,6 @@ Cursor::close(bool is_active)
}
Cursor::~Cursor()
{
if (is_open())
close(FALSE);
}
/*********************************************************************/
/*