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

(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).

1 files changed, 3 insertions, 5 deletions

diff --git a/sql/protocol.h b/sql/protocol.h
index 94fd303e259..6aa9b6414ae 100644
--- a/sql/protocol.h
+++ b/sql/protocol.h
@@ -47,17 +47,13 @@ public:
   Protocol(THD *thd) { init(thd); }
   virtual ~Protocol() {}
   void init(THD* thd);
-  bool send_fields(List<Item> *list, uint flag);
+  virtual bool send_fields(List<Item> *list, uint flag);
   bool send_records_num(List<Item> *list, ulonglong records);
   bool store(I_List<i_string> *str_list);
   bool store(const char *from, CHARSET_INFO *cs);
   String *storage_packet() { return packet; }
   inline void free() { packet->free(); }
-#ifndef EMBEDDED_LIBRARY
-  bool write();
-#else
   virtual bool write();
-#endif
   inline  bool store(uint32 from)
   { return store_long((longlong) from); }
   inline  bool store(longlong from)
@@ -158,6 +154,7 @@ public:
   Protocol_cursor(THD *thd, MEM_ROOT *ini_alloc) :Protocol_simple(thd), alloc(ini_alloc) {}
   bool prepare_for_send(List<Item> *item_list) 
   {
+    row_count= 0;
     fields= NULL;
     data= NULL;
     prev_record= &data;
@@ -165,6 +162,7 @@ public:
   }
   bool send_fields(List<Item> *list, uint flag);
   bool write();
+  uint get_field_count() { return field_count; }
 };
 
 void send_warning(THD *thd, uint sql_errno, const char *err=0);