mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-04-23 00:35:32 +02:00
Code Issues Projects Releases Packages Wiki Activity

WL#962: Added simple, read-only, non-scrolling, asensitive cursors in SPs, using the

Browse source 
(updated) Protocol_cursor class.
Also did some bug fixes.


Docs/sp-imp-spec.txt:
  Added CURSOR docs (and fixed typos)
Docs/sp-implemented.txt:
  Updated for CURSORs
include/mysqld_error.h:
  New error codes/messages for CURSORs
libmysqld/Makefile.am:
  SP cursors now needs this.
mysql-test/r/sp-error.result:
  New tests for cursors.
mysql-test/r/sp.result:
  New tests for cursors.
mysql-test/t/sp-error.test:
  New tests for cursors.
mysql-test/t/sp.test:
  New tests for cursors.
sql/protocol.cc:
  We now always have Protocol_cursor (SPs use it)
sql/protocol.h:
  Fixed bugs in Protocol_cursor (for SPs)
sql/protocol_cursor.cc:
  Fixed bugs in Protocol_cursor (for SPs)
sql/share/czech/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/danish/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/dutch/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/english/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/estonian/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/french/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/german/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/greek/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/hungarian/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/italian/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/japanese/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/korean/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/norwegian-ny/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/norwegian/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/polish/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/portuguese/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/romanian/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/russian/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/serbian/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/slovak/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/spanish/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/swedish/errmsg.txt:
  New error codes/messages for CURSORs
sql/share/ukrainian/errmsg.txt:
  New error codes/messages for CURSORs
sql/sp_head.cc:
  Added cursor support.
  Also fixed problems with item_lists, where pointers and ref_pointer_arrays.
sql/sp_head.h:
  Added cursor support
sql/sp_pcontext.cc:
  Added cursor support
sql/sp_pcontext.h:
  Added cursor support
sql/sp_rcontext.cc:
  Added cursor support, in particular the new sp_cursor class.
sql/sp_rcontext.h:
  Added cursor support, in particular the new sp_cursor class.
sql/sql_lex.h:
  We sometimes need to copy item_lists in LEX when executing substatements in SPs
sql/sql_yacc.yy:
  Added minimal cursor support (not the full syntax yet).
This commit is contained in:
unknown 2003-10-10 16:57:21 +02:00
commit 04c6b9b8d8
42 changed files with 1290 additions and 71 deletions
Download patch file Download diff file Expand all files Collapse all files

42
sql/sp_pcontext.cc
View file

@ -27,10 +27,11 @@
#include "sp_head.h"
sp_pcontext::sp_pcontext()
: Sql_alloc(), m_params(0), m_framesize(0), m_handlers(0), m_genlab(0)
: Sql_alloc(), m_params(0), m_framesize(0), m_handlers(0), m_cursmax(0)
{
VOID(my_init_dynamic_array(&m_pvar, sizeof(sp_pvar_t *), 16, 8));
VOID(my_init_dynamic_array(&m_cond, sizeof(sp_cond_type_t *), 16, 8));
VOID(my_init_dynamic_array(&m_cursor, sizeof(LEX_STRING), 16, 8));
m_label.empty();
}
@ -39,6 +40,7 @@ sp_pcontext::destroy()
{
delete_dynamic(&m_pvar);
delete_dynamic(&m_cond);
delete_dynamic(&m_cursor);
m_label.empty();
}
@ -124,8 +126,6 @@ sp_pcontext::push_cond(LEX_STRING *name, sp_cond_type_t *val)
if (p)
{
if (m_cond.elements == m_framesize)
m_framesize += 1;
p->name.str= name->str;
p->name.length= name->length;
p->val= val;
@ -155,3 +155,39 @@ sp_pcontext::find_cond(LEX_STRING *name)
}
return NULL;
}
void
sp_pcontext::push_cursor(LEX_STRING *name)
{
LEX_STRING n;
n.str= name->str;
n.length= name->length;
insert_dynamic(&m_cursor, (gptr)&n);
if (m_cursor.elements > m_cursmax)
m_cursmax= m_cursor.elements;
}
/*
* See comment for find_pvar() above
*/
my_bool
sp_pcontext::find_cursor(LEX_STRING *name, uint *poff)
{
uint i = m_cursor.elements;
while (i-- > 0)
{
LEX_STRING n;
get_dynamic(&m_cursor, (gptr)&n, i);
if (my_strnncoll(system_charset_info,
(const uchar *)name->str, name->length,
(const uchar *)n.str, n.length) == 0)
{
*poff= i;
return TRUE;
}
}
return FALSE;
}