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drizzled/sql_update.cc
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#include <list>
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using namespace std;
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using namespace drizzled;
 
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namespace drizzled
 
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{
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/**
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  Re-read record if more columns are needed for error message.
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    fields              fields for update
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    values              values of fields for update
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    conds               WHERE clause expression
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    order_num           number of elemen in order_st BY clause
 
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    order_num           number of elemen in ORDER BY clause
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    order               order_st BY clause list
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    limit               limit clause
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    handle_duplicates   how to handle duplicates
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      SORT_FIELD  *sortorder;
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      ha_rows examined_rows;
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      table->sort.io_cache = new IO_CACHE;
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      memset(table->sort.io_cache, 0, sizeof(IO_CACHE));
 
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      table->sort.io_cache = new internal::IO_CACHE;
 
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      memset(table->sort.io_cache, 0, sizeof(internal::IO_CACHE));
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      if (!(sortorder=make_unireg_sortorder(order, &length, NULL)) ||
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          (table->sort.found_records= filesort(session, table, sortorder, length,
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        update these in a separate loop based on the pointer.
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      */
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      IO_CACHE tempfile;
 
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      internal::IO_CACHE tempfile;
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      if (open_cached_file(&tempfile, drizzle_tmpdir,TEMP_PREFIX,
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                           DISK_BUFFER_SIZE, MYF(MY_WME)))
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        goto err;
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        select= new optimizer::SqlSelect;
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        select->head=table;
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      }
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      if (reinit_io_cache(&tempfile,READ_CACHE,0L,0,0))
 
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      if (reinit_io_cache(&tempfile,internal::READ_CACHE,0L,0,0))
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        error=1;
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      // Read row ptrs from this cursor
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      memcpy(select->file, &tempfile, sizeof(tempfile));
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    session                     - thread handler
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    table_list          - global/local table list
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    conds               - conditions
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    order_num           - number of order_st BY list entries
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    order               - order_st BY clause list
 
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    order_num           - number of ORDER BY list entries
 
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    order               - ORDER BY clause list
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  RETURN VALUE
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    false OK
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  return false;
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}
 
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} /* namespace drizzled */