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Viewing changes to drizzled/sql_update.cc

  • Committer: Brian Aker
  • Date: 2008-08-19 22:40:04 UTC
  • Revision ID: brian@tangent.org-20080819224004-tcgp7mptob0jkfmc
More Table cleanup

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drizzled/sql_update.cc
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#include <drizzled/sql_select.h>
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#include <drizzled/drizzled_error_messages.h>
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/* Return 0 if row hasn't changed */
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bool compare_record(Table *table)
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{
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  if (table->s->blob_fields + table->s->varchar_fields == 0)
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    return cmp_record(table,record[1]);
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  /* Compare null bits */
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  if (memcmp(table->null_flags,
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             table->null_flags+table->s->rec_buff_length,
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             table->s->null_bytes))
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    return true;                                // Diff in NULL value
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  /* Compare updated fields */
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  for (Field **ptr= table->field ; *ptr ; ptr++)
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  {
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    if (bitmap_is_set(table->write_set, (*ptr)->field_index) &&
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        (*ptr)->cmp_binary_offset(table->s->rec_buff_length))
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      return true;
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  }
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  return false;
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}
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/*
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  check that all fields are real fields
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      found++;
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      if (!can_compare_record || compare_record(table))
 
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      if (!can_compare_record || table->compare_record())
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      {
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        if (will_batch)
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        {
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        return(1);
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      found++;
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      if (!can_compare_record || compare_record(table))
 
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      if (!can_compare_record || table->compare_record())
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      {
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        int error;
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        if (!updated++)
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           copy_field_ptr++)
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        (*copy_field_ptr->do_copy)(copy_field_ptr);
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      if (!can_compare_record || compare_record(table))
 
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      if (!can_compare_record || table->compare_record())
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      {
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        if ((local_error=table->file->ha_update_row(table->record[1],
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                                                    table->record[0])) &&