- NOTE: an experimental implementation of MRR was done but not kept

in this version. Sure enough, it never caused any improvement in
  the execution speed and rather caused a small increase of execution
  time. This is probably because values are sorted by rowid in each
  range of CONNECT indexes. This could be reconsidered if a customer
  have a need for processing very big files.

- Fix a bug in ha_connect::CheckCond. The negated form of BETWEEN and
  IS NULL operators was not recognized.
modified:
  storage/connect/ha_connect.cc

- Add long jump initialization in CntReadNext. This was causing a server
  crash when an error occured in a ReadColumn.
modified:
  storage/connect/connect.cc

- General cleanup of CONNECT source code eliminating all code not used by
  CONNECT, including the MRR test code (saved separately).
modified:
  storage/connect/catalog.h
  storage/connect/colblk.cpp
  storage/connect/colblk.h
  storage/connect/connect.cc
  storage/connect/connect.h
  storage/connect/domdoc.h
  storage/connect/filamap.cpp
  storage/connect/filamap.h
  storage/connect/filamdbf.h
  storage/connect/filamfix.cpp
  storage/connect/filamfix.h
  storage/connect/filamtxt.cpp
  storage/connect/filamtxt.h
  storage/connect/filamvct.cpp
  storage/connect/filamvct.h
  storage/connect/filamzip.cpp
  storage/connect/filamzip.h
  storage/connect/global.h
  storage/connect/ha_connect.cc
  storage/connect/ha_connect.h
  storage/connect/myconn.h
  storage/connect/plgcnx.h
  storage/connect/plgdbsem.h
  storage/connect/plugutil.c
  storage/connect/preparse.h
  storage/connect/reldef.cpp
  storage/connect/reldef.h
  storage/connect/tabcol.h
  storage/connect/tabdos.cpp
  storage/connect/tabdos.h
  storage/connect/tabfix.cpp
  storage/connect/tabfmt.cpp
  storage/connect/tabfmt.h
  storage/connect/table.cpp
  storage/connect/tabmac.h
  storage/connect/tabmul.h
  storage/connect/tabmysql.cpp
  storage/connect/tabmysql.h
  storage/connect/taboccur.h
  storage/connect/tabodbc.cpp
  storage/connect/tabodbc.h
  storage/connect/tabsys.cpp
  storage/connect/tabsys.h
  storage/connect/tabtbl.cpp
  storage/connect/tabtbl.h
  storage/connect/tabutil.h
  storage/connect/tabvct.cpp
  storage/connect/tabvct.h
  storage/connect/tabwmi.cpp
  storage/connect/tabwmi.h
  storage/connect/tabxml.cpp
  storage/connect/tabxml.h
  storage/connect/user_connect.cc
  storage/connect/user_connect.h
  storage/connect/valblk.cpp
  storage/connect/valblk.h
  storage/connect/value.cpp
  storage/connect/value.h
  storage/connect/xindex.cpp
  storage/connect/xindex.h
  storage/connect/xobject.cpp
  storage/connect/xobject.h
  storage/connect/xtable.h

storage/connect/tabmysql.h

@@ -185,14 +185,7 @@ class TDBMYEXC : public TDBMYSQL {
 
   // Methods
   virtual PTDB CopyOne(PTABS t);
-//virtual int  GetAffectedRows(void) {return AftRows;}
-//virtual int  GetRecpos(void) {return N;}
-//virtual int  GetProgMax(PGLOBAL g);
-//virtual void ResetDB(void) {N = 0;}
-//virtual int  RowNumber(PGLOBAL g, bool b = FALSE);
   virtual bool IsView(void) {return Isview;}
-//virtual PSZ  GetServer(void) {return Server;}
-//        void SetDatabase(LPCSTR db) {Database = (char*)db;}
 
   // Database routines
   virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n);
@@ -200,20 +193,10 @@ class TDBMYEXC : public TDBMYSQL {
   virtual bool OpenDB(PGLOBAL g);
   virtual int  ReadDB(PGLOBAL g);
   virtual int  WriteDB(PGLOBAL g);
-//virtual int  DeleteDB(PGLOBAL g, int irc);
-//virtual void CloseDB(PGLOBAL g);
-
-  // Specific routines
-//        bool SetColumnRanks(PGLOBAL g);
-//        PCOL MakeFieldColumn(PGLOBAL g, char *name);
-//        PSZ  FindFieldColumn(char *name);
 
  protected:
   // Internal functions
   PCMD MakeCMD(PGLOBAL g);
-//bool MakeSelect(PGLOBAL g);
-//bool MakeInsert(PGLOBAL g);
-//int  BindColumns(PGLOBAL g);
 
   // Members
   PCMD     Cmdlist;           // The commands to execute
@@ -237,15 +220,9 @@ class MYXCOL : public MYSQLCOL {
   MYXCOL(MYSQL_FIELD *fld, PTDB tdbp, int i,  PSZ am = "MYSQL");
   MYXCOL(MYXCOL *colp, PTDB tdbp);   // Constructor used in copy process
 
-  // Implementation
-//virtual int  GetAmType(void) {return TYPE_AM_MYSQL;}
-//        void InitBind(PGLOBAL g);
-
   // Methods
-//virtual bool SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check);
   virtual void ReadColumn(PGLOBAL g);
   virtual void WriteColumn(PGLOBAL g);
-//        bool FindRank(PGLOBAL g);
 
  protected:
   // Default constructor not to be used