- fixed test_frm_bug test to work with increased number of columns in

result of SHOW TABLE STATUS


BitKeeper/etc/ignore:
  added libmysqld/my_time.c

1 files changed, 561 insertions, 0 deletions

diff --git a/sql-common/my_time.c b/sql-common/my_time.c
new file mode 100644
index 00000000000..46c84ac9ba7
--- /dev/null
+++ b/sql-common/my_time.c
@@ -0,0 +1,561 @@
+/* Copyright (C) 2004 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#include <my_time.h>
+#include <m_string.h>
+#include <m_ctype.h>
+
+ulonglong log_10_int[20]=
+{
+  1, 10, 100, 1000, 10000UL, 100000UL, 1000000UL, 10000000UL,
+  ULL(100000000), ULL(1000000000), ULL(10000000000), ULL(100000000000),
+  ULL(1000000000000), ULL(10000000000000), ULL(100000000000000),
+  ULL(1000000000000000), ULL(10000000000000000), ULL(100000000000000000),
+  ULL(1000000000000000000), ULL(10000000000000000000)
+};
+
+
+/* Position for YYYY-DD-MM HH-MM-DD.FFFFFF AM in default format */
+
+static uchar internal_format_positions[]=
+{0, 1, 2, 3, 4, 5, 6, (uchar) 255};
+
+static char time_separator=':';
+
+/*
+  Convert a timestamp string to a MYSQL_TIME value.
+
+  SYNOPSIS
+    str_to_datetime()
+    str                 String to parse
+    length              Length of string
+    l_time              Date is stored here
+    flags               Bitmap of following items
+                        TIME_FUZZY_DATE    Set if we should allow partial dates
+                        TIME_DATETIME_ONLY Set if we only allow full datetimes.
+    was_cut             Set to 1 if value was cut during conversion or to 0
+                        otherwise.
+
+  DESCRIPTION
+    At least the following formats are recogniced (based on number of digits)
+    YYMMDD, YYYYMMDD, YYMMDDHHMMSS, YYYYMMDDHHMMSS
+    YY-MM-DD, YYYY-MM-DD, YY-MM-DD HH.MM.SS
+    YYYYMMDDTHHMMSS  where T is a the character T (ISO8601)
+    Also dates where all parts are zero are allowed
+
+    The second part may have an optional .###### fraction part.
+
+  NOTES
+   This function should work with a format position vector as long as the
+   following things holds:
+   - All date are kept together and all time parts are kept together
+   - Date and time parts must be separated by blank
+   - Second fractions must come after second part and be separated
+     by a '.'.  (The second fractions are optional)
+   - AM/PM must come after second fractions (or after seconds if no fractions)
+   - Year must always been specified.
+   - If time is before date, then we will use datetime format only if
+     the argument consist of two parts, separated by space.
+     Otherwise we will assume the argument is a date.
+   - The hour part must be specified in hour-minute-second order.
+
+  RETURN VALUES
+    MYSQL_TIMESTAMP_NONE        String wasn't a timestamp, like
+                                [DD [HH:[MM:[SS]]]].fraction.
+                                l_time is not changed.
+    MYSQL_TIMESTAMP_DATE        DATE string (YY MM and DD parts ok)
+    MYSQL_TIMESTAMP_DATETIME    Full timestamp
+    MYSQL_TIMESTAMP_ERROR       Timestamp with wrong values.
+                                All elements in l_time is set to 0
+*/
+
+#define MAX_DATE_PARTS 8
+
+enum enum_mysql_timestamp_type
+str_to_datetime(const char *str, uint length, MYSQL_TIME *l_time,
+                uint flags, int *was_cut)
+{
+  uint field_length, year_length, digits, i, number_of_fields;
+  uint date[MAX_DATE_PARTS], date_len[MAX_DATE_PARTS];
+  uint add_hours= 0, start_loop;
+  ulong not_zero_date, allow_space;
+  bool is_internal_format;
+  const char *pos, *last_field_pos;
+  const char *end=str+length;
+  const uchar *format_position;
+  bool found_delimitier= 0, found_space= 0;
+  uint frac_pos, frac_len;
+  DBUG_ENTER("str_to_datetime");
+  DBUG_PRINT("ENTER",("str: %.*s",length,str));
+
+  LINT_INIT(field_length);
+  LINT_INIT(year_length);
+  LINT_INIT(last_field_pos);
+
+  *was_cut= 0;
+
+  /* Skip space at start */
+  for (; str != end && my_isspace(&my_charset_latin1, *str) ; str++)
+    ;
+  if (str == end || ! my_isdigit(&my_charset_latin1, *str))
+  {
+    *was_cut= 1;
+    DBUG_RETURN(MYSQL_TIMESTAMP_NONE);
+  }
+
+  is_internal_format= 0;
+  /* This has to be changed if want to activate different timestamp formats */
+  format_position= internal_format_positions;
+
+  /*
+    Calculate number of digits in first part.
+    If length= 8 or >= 14 then year is of format YYYY.
+    (YYYY-MM-DD,  YYYYMMDD, YYYYYMMDDHHMMSS)
+  */
+  for (pos=str; pos != end && my_isdigit(&my_charset_latin1,*pos) ; pos++)
+    ;
+
+  digits= (uint) (pos-str);
+  start_loop= 0;                                /* Start of scan loop */
+  date_len[format_position[0]]= 0;              /* Length of year field */
+  if (pos == end)
+  {
+    /* Found date in internal format (only numbers like YYYYMMDD) */
+    year_length= (digits == 4 || digits == 8 || digits >= 14) ? 4 : 2;
+    field_length=year_length-1;
+    is_internal_format= 1;
+    format_position= internal_format_positions;
+  }
+  else
+  {
+    if (format_position[0] >= 3)                /* If year is after HHMMDD */
+    {
+      /*
+        If year is not in first part then we have to determinate if we got
+        a date field or a datetime field.
+        We do this by checking if there is two numbers separated by
+        space in the input.
+      */
+      while (pos < end && !my_isspace(&my_charset_latin1, *pos))
+        pos++;
+      while (pos < end && !my_isdigit(&my_charset_latin1, *pos))
+        pos++;
+      if (pos == end)
+      {
+        if (flags & TIME_DATETIME_ONLY)
+        {
+          *was_cut= 1;
+          DBUG_RETURN(MYSQL_TIMESTAMP_NONE);   /* Can't be a full datetime */
+        }
+        /* Date field.  Set hour, minutes and seconds to 0 */
+        date[0]= date[1]= date[2]= date[3]= date[4]= 0;
+        start_loop= 5;                         /* Start with first date part */
+      }
+    }
+  }
+
+  /*
+    Only allow space in the first "part" of the datetime field and:
+    - after days, part seconds
+    - before and after AM/PM (handled by code later)
+
+    2003-03-03 20:00:20 AM
+    20:00:20.000000 AM 03-03-2000
+  */
+  i= max((uint) format_position[0], (uint) format_position[1]);
+  set_if_bigger(i, (uint) format_position[2]);
+  allow_space= ((1 << i) | (1 << format_position[6]));
+  allow_space&= (1 | 2 | 4 | 8);
+
+  not_zero_date= 0;
+  for (i = start_loop;
+       i < MAX_DATE_PARTS-1 && str != end &&
+         my_isdigit(&my_charset_latin1,*str);
+       i++)
+  {
+    const char *start= str;
+    ulong tmp_value= (uint) (uchar) (*str++ - '0');
+    while (str != end && my_isdigit(&my_charset_latin1,str[0]) &&
+           (!is_internal_format || field_length--))
+    {
+      tmp_value=tmp_value*10 + (ulong) (uchar) (*str - '0');
+      str++;
+    }
+    date_len[i]= (uint) (str - start);
+    if (tmp_value > 999999)                     /* Impossible date part */
+    {
+      *was_cut= 1;
+      DBUG_RETURN(MYSQL_TIMESTAMP_NONE);
+    }
+    date[i]=tmp_value;
+    not_zero_date|= tmp_value;
+
+    /* Length-1 of next field */
+    field_length= format_position[i+1] == 0 ? 3 : 1;
+
+    if ((last_field_pos= str) == end)
+    {
+      i++;                                      /* Register last found part */
+      break;
+    }
+    /* Allow a 'T' after day to allow CCYYMMDDT type of fields */
+    if (i == format_position[2] && *str == 'T')
+    {
+      str++;                                    /* ISO8601:  CCYYMMDDThhmmss */
+      continue;
+    }
+    if (i == format_position[5])                /* Seconds */
+    {
+      if (*str == '.')                          /* Followed by part seconds */
+      {
+        str++;
+        field_length= 5;                        /* 5 digits after first (=6) */
+      }
+      continue;
+
+      /* No part seconds */
+      date[++i]= 0;
+    }
+    while (str != end &&
+           (my_ispunct(&my_charset_latin1,*str) ||
+            my_isspace(&my_charset_latin1,*str)))
+    {
+      if (my_isspace(&my_charset_latin1,*str))
+      {
+        if (!(allow_space & (1 << i)))
+        {
+          *was_cut= 1;
+          DBUG_RETURN(MYSQL_TIMESTAMP_NONE);
+        }
+        found_space= 1;
+      }
+      str++;
+      found_delimitier= 1;                      /* Should be a 'normal' date */
+    }
+    /* Check if next position is AM/PM */
+    if (i == format_position[6])                /* Seconds, time for AM/PM */
+    {
+      i++;                                      /* Skip AM/PM part */
+      if (format_position[7] != 255)            /* If using AM/PM */
+      {
+        if (str+2 <= end && (str[1] == 'M' || str[1] == 'm'))
+        {
+          if (str[0] == 'p' || str[0] == 'P')
+            add_hours= 12;
+          else if (str[0] != 'a' || str[0] != 'A')
+            continue;                           /* Not AM/PM */
+          str+= 2;                              /* Skip AM/PM */
+          /* Skip space after AM/PM */
+          while (str != end && my_isspace(&my_charset_latin1,*str))
+            str++;
+        }
+      }
+    }
+    last_field_pos= str;
+  }
+  if (found_delimitier && !found_space && (flags & TIME_DATETIME_ONLY))
+  {
+    *was_cut= 1;
+    DBUG_RETURN(MYSQL_TIMESTAMP_NONE);          /* Can't be a datetime */
+  }
+
+  str= last_field_pos;
+
+  number_of_fields= i - start_loop;
+  while (i < MAX_DATE_PARTS)
+  {
+    date_len[i]= 0;
+    date[i++]= 0;
+  }
+
+  if (!is_internal_format)
+  {
+    year_length= date_len[(uint) format_position[0]];
+    if (!year_length)                           /* Year must be specified */
+    {
+      *was_cut= 1;
+      DBUG_RETURN(MYSQL_TIMESTAMP_NONE);
+    }
+
+    l_time->year=               date[(uint) format_position[0]];
+    l_time->month=              date[(uint) format_position[1]];
+    l_time->day=                date[(uint) format_position[2]];
+    l_time->hour=               date[(uint) format_position[3]];
+    l_time->minute=             date[(uint) format_position[4]];
+    l_time->second=             date[(uint) format_position[5]];
+
+    frac_pos= (uint) format_position[6];
+    frac_len= date_len[frac_pos];
+    if (frac_len < 6)
+      date[frac_pos]*= (uint) log_10_int[6 - frac_len];
+    l_time->second_part= date[frac_pos];
+
+    if (format_position[7] != (uchar) 255)
+    {
+      if (l_time->hour > 12)
+      {
+        *was_cut= 1;
+        goto err;
+      }
+      l_time->hour= l_time->hour%12 + add_hours;
+    }
+  }
+  else
+  {
+    l_time->year=       date[0];
+    l_time->month=      date[1];
+    l_time->day=        date[2];
+    l_time->hour=       date[3];
+    l_time->minute=     date[4];
+    l_time->second=     date[5];
+    if (date_len[6] < 6)
+      date[6]*= (uint) log_10_int[6 - date_len[6]];
+    l_time->second_part=date[6];
+  }
+  l_time->neg= 0;
+
+  if (year_length == 2 && i >= format_position[1] && i >=format_position[2] &&
+      (l_time->month || l_time->day))
+    l_time->year+= (l_time->year < YY_PART_YEAR ? 2000 : 1900);
+
+  if (number_of_fields < 3 || l_time->month > 12 ||
+      l_time->day > 31 || l_time->hour > 23 ||
+      l_time->minute > 59 || l_time->second > 59 ||
+      (!(flags & TIME_FUZZY_DATE) && (l_time->month == 0 || l_time->day == 0)))
+  {
+    /* Only give warning for a zero date if there is some garbage after */
+    if (!not_zero_date)                         /* If zero date */
+    {
+      for (; str != end ; str++)
+      {
+        if (!my_isspace(&my_charset_latin1, *str))
+        {
+          not_zero_date= 1;                     /* Give warning */
+          break;
+        }
+      }
+    }
+    if (not_zero_date)
+      *was_cut= 1;
+    goto err;
+  }
+
+  l_time->time_type= (number_of_fields <= 3 ?
+                      MYSQL_TIMESTAMP_DATE : MYSQL_TIMESTAMP_DATETIME);
+
+  for (; str != end ; str++)
+  {
+    if (!my_isspace(&my_charset_latin1,*str))
+    {
+      *was_cut= 1;
+      break;
+    }
+  }
+
+  DBUG_RETURN(l_time->time_type=
+              (number_of_fields <= 3 ? MYSQL_TIMESTAMP_DATE :
+                                       MYSQL_TIMESTAMP_DATETIME));
+
+err:
+  bzero((char*) l_time, sizeof(*l_time));
+  DBUG_RETURN(MYSQL_TIMESTAMP_ERROR);
+}
+
+
+/*
+ Convert a time string to a TIME struct.
+
+  SYNOPSIS
+   str_to_time()
+   str                  A string in full TIMESTAMP format or
+                        [-] DAYS [H]H:MM:SS, [H]H:MM:SS, [M]M:SS, [H]HMMSS,
+                        [M]MSS or [S]S
+                        There may be an optional [.second_part] after seconds
+   length               Length of str
+   l_time               Store result here
+   was_cut              Set to 1 if value was cut during conversion or to 0
+                        otherwise.
+
+   NOTES
+     Because of the extra days argument, this function can only
+     work with times where the time arguments are in the above order.
+
+   RETURN
+     0  ok
+     1  error
+*/
+
+bool str_to_time(const char *str, uint length, MYSQL_TIME *l_time,
+                 int *was_cut)
+{
+  long date[5],value;
+  const char *end=str+length, *end_of_days;
+  bool found_days,found_hours;
+  uint state;
+
+  l_time->neg=0;
+  *was_cut= 0;
+  for (; str != end && my_isspace(&my_charset_latin1,*str) ; str++)
+    length--;
+  if (str != end && *str == '-')
+  {
+    l_time->neg=1;
+    str++;
+    length--;
+  }
+  if (str == end)
+    return 1;
+
+  /* Check first if this is a full TIMESTAMP */
+  if (length >= 12)
+  {                                             /* Probably full timestamp */
+    enum enum_mysql_timestamp_type
+      res= str_to_datetime(str, length, l_time,
+                           (TIME_FUZZY_DATE | TIME_DATETIME_ONLY), was_cut);
+    if ((int) res >= (int) MYSQL_TIMESTAMP_ERROR)
+      return res == MYSQL_TIMESTAMP_ERROR;
+    /* We need to restore was_cut flag since str_to_datetime can modify it */
+    *was_cut= 0;
+  }
+
+  /* Not a timestamp. Try to get this as a DAYS_TO_SECOND string */
+  for (value=0; str != end && my_isdigit(&my_charset_latin1,*str) ; str++)
+    value=value*10L + (long) (*str - '0');
+
+  /* Skip all space after 'days' */
+  end_of_days= str;
+  for (; str != end && my_isspace(&my_charset_latin1, str[0]) ; str++)
+    ;
+
+  LINT_INIT(state);
+  found_days=found_hours=0;
+  if ((uint) (end-str) > 1 && str != end_of_days &&
+      my_isdigit(&my_charset_latin1, *str))
+  {                                             /* Found days part */
+    date[0]= value;
+    state= 1;                                   /* Assume next is hours */
+    found_days= 1;
+  }
+  else if ((end-str) > 1 &&  *str == time_separator &&
+           my_isdigit(&my_charset_latin1, str[1]))
+  {
+    date[0]=0;                                  /* Assume we found hours */
+    date[1]=value;
+    state=2;
+    found_hours=1;
+    str++;                                      /* skip ':' */
+  }
+  else
+  {
+    /* String given as one number; assume HHMMSS format */
+    date[0]= 0;
+    date[1]= value/10000;
+    date[2]= value/100 % 100;
+    date[3]= value % 100;
+    state=4;
+    goto fractional;
+  }
+
+  /* Read hours, minutes and seconds */
+  for (;;)
+  {
+    for (value=0; str != end && my_isdigit(&my_charset_latin1,*str) ; str++)
+      value=value*10L + (long) (*str - '0');
+    date[state++]=value;
+    if (state == 4 || (end-str) < 2 || *str != time_separator ||
+        !my_isdigit(&my_charset_latin1,str[1]))
+      break;
+    str++;                                      /* Skip time_separator (':') */
+  }
+
+  if (state != 4)
+  {                                             /* Not HH:MM:SS */
+    /* Fix the date to assume that seconds was given */
+    if (!found_hours && !found_days)
+    {
+      bmove_upp((char*) (date+4), (char*) (date+state),
+                sizeof(long)*(state-1));
+      bzero((char*) date, sizeof(long)*(4-state));
+    }
+    else
+      bzero((char*) (date+state), sizeof(long)*(4-state));
+  }
+
+fractional:
+  /* Get fractional second part */
+  if ((end-str) >= 2 && *str == '.' && my_isdigit(&my_charset_latin1,str[1]))
+  {
+    uint field_length=5;
+    str++; value=(uint) (uchar) (*str - '0');
+    while (++str != end && 
+           my_isdigit(&my_charset_latin1,str[0]) && 
+           field_length--)
+      value=value*10 + (uint) (uchar) (*str - '0');
+    if (field_length)
+      value*= (long) log_10_int[field_length];
+    date[4]=value;
+  }
+  else
+    date[4]=0;
+
+  if (internal_format_positions[7] != 255)
+  {
+    /* Read a possible AM/PM */
+    while (str != end && my_isspace(&my_charset_latin1, *str))
+      str++;
+    if (str+2 <= end && (str[1] == 'M' || str[1] == 'm'))
+    {
+      if (str[0] == 'p' || str[0] == 'P')
+      {
+        str+= 2;
+        date[1]= date[1]%12 + 12;
+      }
+      else if (str[0] == 'a' || str[0] == 'A')
+        str+=2;
+    }
+  }
+
+  /* Some simple checks */
+  if (date[2] >= 60 || date[3] >= 60)
+  {
+    *was_cut= 1;
+    return 1;
+  }
+  l_time->year=         0;                      /* For protocol::store_time */
+  l_time->month=        0;
+  l_time->day=          date[0];
+  l_time->hour=         date[1];
+  l_time->minute=       date[2];
+  l_time->second=       date[3];
+  l_time->second_part=  date[4];
+  l_time->time_type= MYSQL_TIMESTAMP_TIME;
+
+  /* Check if there is garbage at end of the TIME specification */
+  if (str != end)
+  {
+    do
+    {
+      if (!my_isspace(&my_charset_latin1,*str))
+      {
+        *was_cut= 1;
+        break;
+      }
+    } while (++str != end);
+  }
+  return 0;
+}
+
+