This is a major update of CONNECT that goes from version 1.1 to 1.2

===================================================================
- Implement a first support of the ALTER TABLE command. This fixes MDEV-5440
  but does much more than only that. See the details of how ALTER is supported
  in the new documentation and also in MDEV-5440 comment.
  This is done principally by implementing for CONNECT the virtual function
  check_if_supported_inplace_alter.
modified:
  storage/connect/connect.cc
  storage/connect/global.h
  storage/connect/ha_connect.cc
  storage/connect/ha_connect.h
  storage/connect/mysql-test/connect/r/bin.result
  storage/connect/mysql-test/connect/r/csv.result
  storage/connect/mysql-test/connect/r/dbf.result
  storage/connect/mysql-test/connect/r/dir.result
  storage/connect/mysql-test/connect/r/fix.result
  storage/connect/mysql-test/connect/r/index.result
  storage/connect/mysql-test/connect/r/ini.result
  storage/connect/mysql-test/connect/r/occur.result
  storage/connect/mysql-test/connect/r/pivot.result
  storage/connect/mysql-test/connect/r/vec.result
  storage/connect/mysql-test/connect/t/dbf.test
  storage/connect/plugutil.c
  storage/connect/user_connect.cc

- Fixes the tabname/table_name issue for XML tables. Implement
  multiple files XML tables.
modified:
  storage/connect/tabxml.cpp
  storage/connect/tabxml.h

- Set to varchar(256) the fields of catalog tables stored
  as STRBLK's (had length 0 --> CHAR(1))
  Add the GetCharString function to the VALBLK class
modified:
  storage/connect/ha_connect.cc
  storage/connect/valblk.cpp
  storage/connect/valblk.h
  storage/connect/value.cpp

- Translate CONNECT error messages to system_charset
  to avoid truncation on not ASCII characters.
modified:
  storage/connect/ha_connect.cc

- Update version number
modified:
  storage/connect/ha_connect.cc
  storage/connect/mysql-test/connect/r/xml.result

- Move the TDBASE::data_charset body from xtable.h to table.cpp.
  (dont' remember why)
modified:
  storage/connect/table.cpp
  storage/connect/xtable.h

- Other modifications are to enhance the support of OEM tables.
  In particular, they can now provide column definition in dicovery.
modified:
  storage/connect/colblk.h
  storage/connect/global.h
  storage/connect/ha_connect.cc
  storage/connect/mycat.cc
  storage/connect/plgcnx.h
  storage/connect/plgdbsem.h
  storage/connect/xtable.h

- Or to add or modify tracing.
modified:
  storage/connect/filamtxt.cpp
  storage/connect/ha_connect.cc
  storage/connect/plgdbutl.cpp
  storage/connect/tabfix.cpp
  storage/connect/tabmysql.cpp

1 files changed, 9 insertions, 4 deletions

diff --git a/storage/connect/valblk.h b/storage/connect/valblk.h
index debeb0669b0..1edfe7f76b4 100644
--- a/storage/connect/valblk.h
+++ b/storage/connect/valblk.h
@@ -1,7 +1,7 @@
 /*************** Valblk H Declares Source Code File (.H) ***************/
-/*  Name: VALBLK.H    Version 2.0                                      */
+/*  Name: VALBLK.H    Version 2.1                                      */
 /*                                                                     */
-/*  (C) Copyright to the author Olivier BERTRAND          2005-2013    */
+/*  (C) Copyright to the author Olivier BERTRAND          2005-2014    */
 /*                                                                     */
 /*  This file contains the VALBLK and derived classes declares.        */
 /***********************************************************************/
@@ -58,6 +58,7 @@ class VALBLK : public BLOCK {
   virtual longlong GetBigintValue(int n) = 0;
   virtual ulonglong GetUBigintValue(int n) = 0;
   virtual double GetFloatValue(int n) = 0;
+  virtual char  *GetCharString(char *p, int n) = 0;
   virtual void   ReAlloc(void *mp, int n) {Blkp = mp; Nval = n;}
   virtual void   Reset(int n) = 0;
   virtual bool   SetFormat(PGLOBAL g, PSZ fmt, int len, int year = 0);
@@ -133,6 +134,7 @@ class TYPBLK : public VALBLK {
   virtual longlong GetBigintValue(int n) {return (longlong)Typp[n];}
   virtual ulonglong GetUBigintValue(int n) {return (ulonglong)Typp[n];}
   virtual double GetFloatValue(int n) {return (double)Typp[n];}
+  virtual char  *GetCharString(char *p, int n);
   virtual void   Reset(int n) {Typp[n] = 0;}
 
   // Methods
@@ -199,6 +201,7 @@ class CHRBLK : public VALBLK {
   virtual longlong GetBigintValue(int n);
   virtual ulonglong GetUBigintValue(int n);
   virtual double GetFloatValue(int n);
+  virtual char  *GetCharString(char *p, int n);
   virtual void   Reset(int n);
   virtual void   SetPrec(int p) {Ci = (p != 0);}
   virtual bool   IsCi(void) {return Ci;}
@@ -252,6 +255,7 @@ class STRBLK : public VALBLK {
   virtual longlong GetBigintValue(int n);
   virtual ulonglong GetUBigintValue(int n);
   virtual double GetFloatValue(int n) {return atof(Strp[n]);}
+  virtual char  *GetCharString(char *p, int n) {return Strp[n];}
   virtual void   Reset(int n) {Strp[n] = NULL;}
 
   // Methods
@@ -286,10 +290,11 @@ class DATBLK : public TYPBLK<int> {
   DATBLK(void *mp, int size);
 
   // Implementation
-  virtual bool SetFormat(PGLOBAL g, PSZ fmt, int len, int year = 0);
+  virtual bool  SetFormat(PGLOBAL g, PSZ fmt, int len, int year = 0);
+  virtual char *GetCharString(char *p, int n);
 
   // Methods
-  virtual void SetValue(PSZ sp, int n);
+  virtual void  SetValue(PSZ sp, int n);
 
  protected:
   // Members