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  • Committer: Stewart Smith
  • Author(s): Vasil Dimov, Stewart Smith
  • Date: 2010-12-20 02:24:00 UTC
  • mto: (2021.1.2 build)
  • mto: This revision was merged to the branch mainline in revision 2022.
  • Revision ID: stewart@flamingspork.com-20101220022400-0p9lvvppwgaowdju
Merge Revision revid:vasil.dimov@oracle.com-20101102165720-164z3666y3tut4c2 from MySQL InnoDB

Original revid:vasil.dimov@oracle.com-20101102165720-164z3666y3tut4c2

Original Authors: Vasil Dimov <vasil.dimov@oracle.com>
Original commit message:
Fix Bug#53046 dict_update_statistics_low can still be run concurrently on same table

Replace the array of mutexes that used to protect
dict_index_t::stat_n_diff_key_vals[] with an array of rw locks that protects
all the stats related members in dict_table_t and all of its indexes.

Approved by:    Jimmy (rb://503)

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drizzled/function/field.cc
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008 Sun Microsystems, Inc.
 
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 *  Copyright (C) 2008 Sun Microsystems
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include <config.h>
 
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#include "config.h"
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#include <drizzled/function/field.h>
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#include <drizzled/item/cmpfunc.h>
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  }
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  else if (cmp_type == DECIMAL_RESULT)
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  {
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    type::Decimal dec_arg_buf, *dec_arg,
 
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    my_decimal dec_arg_buf, *dec_arg,
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               dec_buf, *dec= args[0]->val_decimal(&dec_buf);
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    if (args[0]->null_value)
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      return 0;
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    for (uint32_t i=1; i < arg_count; i++)
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    {
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      dec_arg= args[i]->val_decimal(&dec_arg_buf);
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      if (!args[i]->null_value && !class_decimal_cmp(dec_arg, dec))
 
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      if (!args[i]->null_value && !my_decimal_cmp(dec_arg, dec))
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        return (int64_t) (i);
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    }
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  }