Commit c526f5d2 authored by monty@hundin.mysql.fi's avatar monty@hundin.mysql.fi
Browse files

Merge work:/home/bk/mysql-4.0 into hundin.mysql.fi:/my/bk/mysql-4.0

parents 36a14aac 2dd0b802
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+16 −16
Original line number Diff line number Diff line
@@ -1814,23 +1814,23 @@ fi
AC_SUBST(readline_dir)
AC_SUBST(readline_link)

# Choose a character set
dnl in order to add new charset, you must add charset name to
dnl CHARSETS_AVAILABLE list and add the charset name to
dnl sql/share/charsets/Index.  If the character set uses strcoll
dnl or other special handling, you must also create
dnl strings/ctype-$charset_name.c
dnl In order to add new charset, you must add charset name to
dnl this CHARSETS_AVAILABLE list and sql/share/charsets/Index.
dnl If the character set uses strcoll or other special handling,
dnl you must also create strings/ctype-$charset_name.c

CHARSETS_AVAILABLE="big5 cp1251 cp1257 croat czech danish dec8 dos estonia euc_kr gb2312 gbk german1 greek hebrew hp8 hungarian koi8_ru koi8_ukr latin1 latin2 latin5 swe7 usa7 win1250 win1251 win1251ukr ujis sjis tis620"
DEFAULT_CHARSET=latin1

dnl win1251 is deprecated - it's available, but not listed here in the help
AC_ARG_WITH(charset,
  [  --with-charset=CHARSET  Use CHARSET by default (one of: big5 cp1251 cp1257
AC_DIVERT_PUSH(0)
CHARSETS_AVAILABLE="big5 cp1251 cp1257
                          croat czech danish dec8 dos estonia euc_kr gb2312 gbk
                          german1 greek hebrew hp8 hungarian koi8_ru koi8_ukr
                          latin1 latin2 latin5 swe7 usa7 win1250 win1251ukr
                          ujis sjis tis620; Default is latin1)],
                          latin1 latin1_de latin2 latin5 sjis swe7 tis620 ujis
                          usa7 win1250 win1251ukr"
CHARSETS_DEPRECATED="win1251"
DEFAULT_CHARSET=latin1_de
AC_DIVERT_POP

AC_ARG_WITH(charset,
  [  --with-charset=CHARSET  Use CHARSET by default (one of: $CHARSETS_AVAILABLE; Default is $DEFAULT_CHARSET)],
  [default_charset="$withval"],
  [default_charset="$DEFAULT_CHARSET"])

@@ -1851,7 +1851,7 @@ elif test "$extra_charsets" = complex; then
  CHARSETS=`echo $CHARSETS`     # get rid of line breaks
else
  if test "$extra_charsets" = all; then
    CHARSETS="$CHARSETS_AVAILABLE"
    CHARSETS="$CHARSETS_AVAILABLE $CHARSETS_DEPRECATED"
  else
    CHARSETS=`echo $extra_charsets | sed -e 's/,/ /g'`
  fi
@@ -1872,7 +1872,7 @@ CHARSETS=$TMP_CHARSETS
for cs in $CHARSETS
do
  charset_okay=0
  for charset in $CHARSETS_AVAILABLE
  for charset in $CHARSETS_AVAILABLE $CHARSETS_DEPRECATED
  do
    if test $cs = $charset; then charset_okay=1; fi
  done
+0 −6
Original line number Diff line number Diff line
@@ -58,12 +58,6 @@ mysysobjects1 = my_init.lo my_static.lo my_malloc.lo my_realloc.lo \
                        charset.lo hash.lo mf_iocache.lo my_seek.lo \
			my_pread.lo mf_cache.lo my_vsnprintf.lo

link_sources:
	for f in $(mysys_src); do \
	rm -f $$f; \
	@LN_CP_F@ ../mysys/$$f $$f; \
	done;

# Not needed in the minimum library
mysysobjects2 =		getopt.lo getopt1.lo getvar.lo my_lib.lo
mysysobjects =		$(mysysobjects1) $(mysysobjects2)
+12 −3
Original line number Diff line number Diff line
@@ -128,6 +128,7 @@ DO_GDB=""
DO_DDD=""
DO_CLIENT_GDB=""
SLEEP_TIME=2
CHARACTER_SET=latin1_de
DBUSER=""

while test $# -gt 0; do
@@ -277,6 +278,7 @@ if [ x$SOURCE_DIST = x1 ] ; then
 MYSQLADMIN="$BASEDIR/client/mysqladmin"
 MYSQL="$BASEDIR/client/mysql"
 LANGUAGE="$BASEDIR/sql/share/english/"
 CHARSETSDIR="$BASEDIR/sql/share/charsets"
 INSTALL_DB="./install_test_db"
else
 MYSQLD="$BASEDIR/bin/mysqld"
@@ -287,8 +289,10 @@ else
 if test -d "$BASEDIR/share/mysql/english" 
 then
   LANGUAGE="$BASEDIR/share/mysql/english/"
   CHARSETSDIR="$BASEDIR/share/mysql/charsets"
 else
   LANGUAGE="$BASEDIR/share/english/"
   CHARSETSDIR="$BASEDIR/share/charsets"
  fi
fi

@@ -506,7 +510,9 @@ start_master()
            --datadir=$MASTER_MYDDIR \
	    --pid-file=$MASTER_MYPID \
	    --socket=$MASTER_MYSOCK \
            --log=$MASTER_MYLOG --default-character-set=latin1 \
            --log=$MASTER_MYLOG \
	    --character-sets-dir=$CHARSETSDIR \
	    --default-character-set=$CHARACTER_SET \
	    --tmpdir=$MYSQL_TMP_DIR \
	    --language=$LANGUAGE \
            --innodb_data_file_path=ibdata1:50M \
@@ -519,7 +525,8 @@ start_master()
            --datadir=$MASTER_MYDDIR \
	    --pid-file=$MASTER_MYPID \
	    --socket=$MASTER_MYSOCK \
            --default-character-set=latin1 \
	    --character-sets-dir=$CHARSETSDIR \
            --default-character-set=$CHARACTER_SET \
	    --core \
	    --tmpdir=$MYSQL_TMP_DIR \
	    --language=$LANGUAGE \
@@ -575,7 +582,9 @@ start_slave()
	    --pid-file=$SLAVE_MYPID \
	    --port=$SLAVE_MYPORT \
	    --socket=$SLAVE_MYSOCK \
            --log=$SLAVE_MYLOG --default-character-set=latin1 \
            --log=$SLAVE_MYLOG \
	    --character-sets-dir=$CHARSETSDIR \
	    --default-character-set=$CHARACTER_SET \
	    --core \
	    --tmpdir=$MYSQL_TMP_DIR \
            --language=$LANGUAGE \
+3 −1
Original line number Diff line number Diff line
# sql/share/charsets/Index
#
# This file lists all of the available character sets.
# This file lists all of the available character sets.  Please keep this
# file sorted by character set number.


big5 		   1
@@ -34,3 +35,4 @@ croat 27
gbk 		  28
cp1257		  29
latin5		  30
latin1_de	  31
+428 −0
Original line number Diff line number Diff line
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
   
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.
   
   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
   MA 02111-1307, USA */

/*
 * This file is the latin1 character set with German sorting
 *
 * The modern sort order is used, where:
 *
 * 'ä'  ->  "ae"
 * 'ö'  ->  "oe"
 * 'ü'  ->  "ue"
 * 'ß'  ->  "ss"
 */

/*
 * This comment is parsed by configure to create ctype.c,
 * so don't change it unless you know what you are doing.
 *
 * .configure. strxfrm_multiply_latin1_de=2
 */

#include <global.h>
#include "m_string.h"
#include "m_ctype.h"

uchar ctype_latin1_de[] = {
    0,
   32, 32, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 32, 32,
   32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
   72, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
  132,132,132,132,132,132,132,132,132,132, 16, 16, 16, 16, 16, 16,
   16,129,129,129,129,129,129,  1,  1,  1,  1,  1,  1,  1,  1,  1,
    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1, 16, 16, 16, 16, 16,
   16,130,130,130,130,130,130,  2,  2,  2,  2,  2,  2,  2,  2,  2,
    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2, 16, 16, 16, 16, 32,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
   72, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
   16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
    1,  1,  1,  1,  1,  1,  1, 16,  1,  1,  1,  1,  1,  1,  1,  2,
    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
    2,  2,  2,  2,  2,  2,  2, 16,  2,  2,  2,  2,  2,  2,  2,  2
};

uchar to_lower_latin1_de[] = {
    0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
   16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
   32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
   48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
   64, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
  112,113,114,115,116,117,118,119,120,121,122, 91, 92, 93, 94, 95,
   96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
  112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,
  128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
  144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
  160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
  176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
  224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
  240,241,242,243,244,245,246,215,248,249,250,251,252,253,254,223,
  224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
  240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
};

uchar to_upper_latin1_de[] = {
    0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
   16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
   32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
   48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
   64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
   80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
   96, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
   80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,123,124,125,126,127,
  128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
  144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
  160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
  176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
  192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
  208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
  192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
  208,209,210,211,212,213,214,247,216,217,218,219,220,221,222,255
};

/*
 * This is a simple latin1 mapping table, which maps all accented
 * characters to their non-accented equivalents.  Note: in this
 * table, 'ä' is mapped to 'A', 'ÿ' is mapped to 'Y', etc. - all
 * accented characters are treated the same way.
 *
 * SPECIAL NOTE: 'ß' (the sz ligature), which isn't really an
 * accented 's', is mapped to 'S', to simplify the sorting
 * functions.
 */
uchar sort_order_latin1_de[] = {
    0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
   16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
   32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
   48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
   64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
   80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
   96, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
   80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,123,124,125,126,127,
  128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
  144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
  160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
  176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
   65, 65, 65, 65, 65, 65, 92, 67, 69, 69, 69, 69, 73, 73, 73, 73,
   68, 78, 79, 79, 79, 79, 79,215,216, 85, 85, 85, 85, 89,222, 83,
   65, 65, 65, 65, 65, 65, 92, 67, 69, 69, 69, 69, 73, 73, 73, 73,
   68, 78, 79, 79, 79, 79, 79,247,216, 85, 85, 85, 85, 89,222, 89
};

#define L1_AE 196
#define L1_ae 228
#define L1_OE 214
#define L1_oe 246
#define L1_UE 220
#define L1_ue 252
#define L1_ss 223

int my_strnncoll_latin1_de(const uchar * s1, int len1,
                           const uchar * s2, int len2)
{
  const uchar *e1 = s1 + len1;
  const uchar *e2 = s2 + len2;

  while (s1 < e1 && s2 < e2)
  {
    /* to_upper is used instead of sort_order, because we don't want
     * 'Ä' to match "ÁE", only "AE".  This couples the to_upper and
     * sort_order tables together, but that is acceptable. */
    uchar c1 = to_upper_latin1_de[*s1];
    uchar c2 = to_upper_latin1_de[*s2];
    if (c1 != c2)
    {
      switch (c1)
      {

#define CHECK_S1_COMBO(fst, snd, accent)                                  \
  /* Invariant: c1 == fst == sort_order_latin1_de[accent] && c1 != c2 */  \
  if (c2 == accent)                                                       \
  {                                                                       \
    if (s1 + 1 < e1)                                                      \
    {                                                                     \
      if (to_upper_latin1_de[*(s1 + 1)] == snd)                           \
      {                                                                   \
	/* They are equal (e.g., "Ae" == 'ä') */                          \
	s1 += 2;                                                          \
	s2 += 1;                                                          \
      }                                                                   \
      else                                                                \
      {                                                                   \
	int diff = sort_order_latin1_de[*(s1 + 1)] - snd;                 \
	if (diff)                                                         \
	  return diff;                                                    \
	else                                                              \
	  /* Comparison between, e.g., "AÉ" and 'Ä' */                    \
	  return 1;                                                       \
      }                                                                   \
    }                                                                     \
    else                                                                  \
      return -1;                                                          \
  }                                                                       \
  else                                                                    \
    /* The following should work even if c2 is [ÄÖÜß] */                  \
    return fst - sort_order_latin1_de[c2]

      case 'A':
	CHECK_S1_COMBO('A', 'E', L1_AE);
	break;
      case 'O':
	CHECK_S1_COMBO('O', 'E', L1_OE);
	break;
      case 'U':
	CHECK_S1_COMBO('U', 'E', L1_UE);
	break;
      case 'S':
	CHECK_S1_COMBO('S', 'S', L1_ss);
	break;

#define CHECK_S2_COMBO(fst, snd)                                          \
  /* Invariant: sort_order_latin1_de[c1] == fst && c1 != c2 */            \
  if (c2 == fst)                                                          \
  {                                                                       \
    if (s2 + 1 < e2)                                                      \
    {                                                                     \
      if (to_upper_latin1_de[*(s2 + 1)] == snd)                           \
      {                                                                   \
	/* They are equal (e.g., 'ä' == "Ae") */                          \
	s1 += 1;                                                          \
	s2 += 2;                                                          \
      }                                                                   \
      else                                                                \
      {                                                                   \
	int diff = sort_order_latin1_de[*(s1 + 1)] - snd;                 \
	if (diff)                                                         \
	  return diff;                                                    \
	else                                                              \
	  /* Comparison between, e.g., 'Ä' and "AÉ" */                    \
	  return -1;                                                      \
      }                                                                   \
    }                                                                     \
    else                                                                  \
      return 1;                                                           \
  }                                                                       \
  else                                                                    \
    /* The following should work even if c2 is [ÄÖÜß] */                  \
    return fst - sort_order_latin1_de[c2]

      case L1_AE:
	CHECK_S2_COMBO('A', 'E');
	break;
      case L1_OE:
	CHECK_S2_COMBO('O', 'E');
	break;
      case L1_UE:
	CHECK_S2_COMBO('U', 'E');
	break;
      case L1_ss:
	CHECK_S2_COMBO('S', 'S');
	break;
      default:
	switch (c2) {
	case L1_AE:
	case L1_OE:
	case L1_UE:
	case L1_ss:
	  /* Make sure these do not match (e.g., "Ä" != "Á") */
	  return sort_order_latin1_de[c1] - sort_order_latin1_de[c2];
	  break;
	default:
	  if (sort_order_latin1_de[*s1] != sort_order_latin1_de[*s2])
	    return sort_order_latin1_de[*s1] - sort_order_latin1_de[*s2];
	  ++s1;
	  ++s2;
	  break;
	}
	break;

#undef CHECK_S1_COMBO
#undef CHECK_S2_COMBO

      }
    }
    else
    {
      /* In order to consistently treat "ae" == 'ä', but to NOT allow
       * "aé" == 'ä', we must look ahead here to ensure that the second
       * letter in a combo really is the unaccented 'e' (or 's' for
       * "ss") and is not an accented character with the same sort_order. */
      ++s1;
      ++s2;
      if (s1 < e1 && s2 < e2)
      {
	switch (c1)
	{
	case 'A':
	case 'O':
	case 'U':
	  if (sort_order_latin1_de[*s1] == 'E' &&
	      to_upper_latin1_de[*s1] != 'E' &&
	      to_upper_latin1_de[*s2] == 'E')
	    /* Comparison between, e.g., "AÉ" and "AE" */
	    return 1;
	  if (sort_order_latin1_de[*s2] == 'E' &&
	      to_upper_latin1_de[*s2] != 'E' &&
	      to_upper_latin1_de[*s1] == 'E')
	    /* Comparison between, e.g., "AE" and "AÉ" */
	    return -1;
	  break;
	case 'S':
	  if (sort_order_latin1_de[*s1] == 'S' &&
	      to_upper_latin1_de[*s1] != 'S' &&
	      to_upper_latin1_de[*s2] == 'S')
	    /* Comparison between, e.g., "Sß" and "SS" */
	    return 1;
	  if (sort_order_latin1_de[*s2] == 'S' &&
	      to_upper_latin1_de[*s2] != 'S' &&
	      to_upper_latin1_de[*s1] == 'S')
	    /* Comparison between, e.g., "SS" and "Sß" */
	    return -1;
	  break;
	default:
	  break;
	}
      }
    }
  }

  /* A simple test of string lengths won't work -- we test to see
   * which string ran out first */
  return s1 < e1 ? 1 : s2 < e2 ? -1 : 0;
}

int my_strnxfrm_latin1_de(uchar * dest, const uchar * src, int len, int srclen)
{
  const uchar *dest_orig = dest;
  const uchar *de = dest + len;
  const uchar *se = src + srclen;
  while (src < se && dest < de)
  {
    switch (*src)
    {
    case L1_AE:
    case L1_ae:
      *dest++ = 'A';
      if (dest < de)
	*dest++ = 'E';
      break;
    case L1_OE:
    case L1_oe:
      *dest++ = 'O';
      if (dest < de)
	*dest++ = 'E';
      break;
    case L1_UE:
    case L1_ue:
      *dest++ = 'U';
      if (dest < de)
	*dest++ = 'E';
      break;
    case L1_ss:
      *dest++ = 'S';
      if (dest < de)
	*dest++ = 'S';
      break;
    default:
      *dest++ = sort_order_latin1_de[*src];
      break;
    }
    ++src;
  }
  return dest - dest_orig;
}

int my_strcoll_latin1_de(const uchar * s1, const uchar * s2)
{
  /* XXX QQ: This should be fixed to not call strlen */
  return my_strnncoll_latin1_de(s1, strlen(s1), s2, strlen(s2));
}

int my_strxfrm_latin1_de(uchar * dest, const uchar * src, int len)
{
  /* XXX QQ: This should be fixed to not call strlen */
  return my_strnxfrm_latin1_de(dest, src, len, strlen(src));
}

/*
 * Calculate min_str and max_str that ranges a LIKE string.
 * Arguments:
 * ptr		IN: Pointer to LIKE string.
 * ptr_length	IN: Length of LIKE string.
 * escape	IN: Escape character in LIKE.  (Normally '\').
 *		No escape characters should appear in min_str or max_str
 * res_length   IN: Length of min_str and max_str.
 * min_str      IN/OUT: Smallest case sensitive string that ranges LIKE.
 *		Should be space padded to res_length.
 * max_str	IN/OUT: Largest case sensitive string that ranges LIKE.
 *		Normally padded with the biggest character sort value.
 * min_length	OUT: Length of min_str without space padding.
 * max_length	OUT: Length of max_str without space padding.
 *
 * The function should return 0 if ok and 1 if the LIKE string can't be
 * optimized !
 */

#define min_sort_char ((char) 0)
#define max_sort_char ((char) 255)
#define wild_one '_'
#define wild_many '%'

my_bool my_like_range_latin1_de(const char *ptr, uint ptr_length,
				pchar escape, uint res_length,
				char *min_str, char *max_str,
				uint *min_length, uint *max_length)
{
  const char *end = ptr + ptr_length;
  char *min_org = min_str;
  char *min_end = min_str + res_length;

  for (; ptr != end && min_str != min_end; ++ptr)
  {
    if (*ptr == escape && ptr + 1 != end)
    {
      ++ptr;				/* Skip escape */
      *min_str++ = *max_str++ = *ptr;
      continue;
    }
    if (*ptr == wild_one)		/* '_' in SQL */
    {
      *min_str++ = min_sort_char;
      *max_str++ = max_sort_char;
      continue;
    }
    if (*ptr == wild_many)		/* '%' in SQL */
    {
      *min_length = (uint)(min_str - min_org);
      *max_length = res_length;
      do {
	*min_str++ = min_sort_char;
	*max_str++ = max_sort_char;
      } while (min_str != min_end);
      return 0;
    }
    *min_str++ = *max_str++ = *ptr;
  }
  *min_length = *max_length = (uint) (min_str - min_org);
  while (min_str != min_end)
  {
    *min_str++ = ' ';			/* For proper key compression */
    *max_str++ = ' ';
  }
  return 0;
}