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  • Committer: Brian Aker
  • Date: 2010-11-22 00:16:44 UTC
  • mto: (1945.2.1 quick)
  • mto: This revision was merged to the branch mainline in revision 1947.
  • Revision ID: brian@tangent.org-20101122001644-pi6jv0d65e82xn38
Merge in lock refactor, this just encapsulates.

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drizzled/item.h
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#include <drizzled/dtcollation.h>
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#include <drizzled/drizzle_time.h>
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#include <drizzled/decimal.h>
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#include <drizzled/sql_bitmap.h>
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#include <drizzled/sql_list.h>
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#include "drizzled/memory/sql_alloc.h"
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#include <drizzled/table.h>
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   * cost Item::execution_cost(),
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   * where 'cost' is either 'double' or some structure of various cost
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   * parameters.
 
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   *
 
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   *NOTE
 
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   *   This function is now used to prevent evaluation of materialized IN
 
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   *   subquery predicates before it is allowed. grep for
 
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   *   DontEvaluateMaterializedSubqueryTooEarly to see the uses.
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   */
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  virtual bool is_expensive();
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