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Viewing changes to drizzled/optimizer/key_field.h

  • Committer: Jay Pipes
  • Date: 2009-09-15 21:01:42 UTC
  • mto: (1126.2.5 merge)
  • mto: This revision was merged to the branch mainline in revision 1128.
  • Revision ID: jpipes@serialcoder-20090915210142-x8mwiqn1q0vzjspp
Moves Alter_info out into its own header and source file, cleans up some related include mess in sql_lex.h, and renames Alter_info to AlterInfo.

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drizzled/optimizer/key_field.h
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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) 2009 Sun Microsystems, Inc.
 
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 *  Copyright (C) 2009 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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#ifndef DRIZZLED_OPTIMIZER_KEY_FIELD_H
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#define DRIZZLED_OPTIMIZER_KEY_FIELD_H
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#include <drizzled/server_includes.h>
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#include <drizzled/sql_select.h>
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#include <vector>
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      cond_guard(NULL)
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  {}
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  KeyField(Field *in_field,
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           Item *in_val,
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           uint32_t in_level,
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           uint32_t in_optimize,
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           bool in_eq_func,
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           bool in_null_rejecting,
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           bool *in_cond_guard)
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    :
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      field(in_field),
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      val(in_val),
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      level(in_level),
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      optimize(in_optimize),
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      eq_func(in_eq_func),
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      null_rejecting(in_null_rejecting),
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      cond_guard(in_cond_guard)
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  {}
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  Field *getField()
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  {
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    return field;
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  }
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  void setField(Field *in_field)
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  {
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    field= in_field;
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  }
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  Item *getValue()
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  {
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    return val;
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  }
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  void setValue(Item *in_val)
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  {
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    val= in_val;
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  }
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  uint32_t getLevel()
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  {
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    return level;
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  }
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  void setLevel(uint32_t in_level)
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  {
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    level= in_level;
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  }
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  uint32_t getOptimizeFlags()
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  {
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    return optimize;
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  }
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  void setOptimizeFlags(uint32_t in_opt)
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  {
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    optimize= in_opt;
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  }
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  bool isEqualityCondition() const
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  {
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    return eq_func;
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  }
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  void setEqualityConditionUsed(bool in_val)
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  {
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    eq_func= in_val;
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  }
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  bool rejectNullValues() const
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  {
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    return null_rejecting;
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  }
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  void setRejectNullValues(bool in_val)
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  {
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    null_rejecting= in_val;
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  }
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  bool *getConditionalGuard()
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  {
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    return cond_guard;
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  }
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  void setConditionalGuard(bool *in_cond_guard)
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  {
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    cond_guard= in_cond_guard;
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  }
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private:
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  Field *field;
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  Item *val; /**< May be empty if diff constant */
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  uint32_t level;
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  */
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  bool null_rejecting;
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  bool *cond_guard; /**< @see KeyUse::cond_guard */
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};
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void add_key_fields(Join *join, 
 
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void add_key_fields(JOIN *join, 
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                    KeyField **key_fields,
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                    uint32_t *and_level,
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                    COND *cond,
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 *   @endcode
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 *   Here we can add 'ref' access candidates for t1 and t2, but not for t3.
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 */
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void add_key_fields_for_nj(Join *join,
 
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void add_key_fields_for_nj(JOIN *join,
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                           TableList *nested_join_table,
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                           KeyField **end,
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                           uint32_t *and_level,