enum_query_type.h

/* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */

#ifndef ENUM_QUERY_TYPE_INCLUDED
#define ENUM_QUERY_TYPE_INCLUDED

/**
   Query type constants (usable as bitmap flags).
*/

enum enum_query_type
{
  /// Nothing specific, ordinary SQL query.
  QT_ORDINARY= 0,

  /// In utf8.
  QT_TO_SYSTEM_CHARSET= (1 << 0),

  /// Without character set introducers.
  QT_WITHOUT_INTRODUCERS= (1 << 1),

  /**
    Causes string literals to always be printed with character set
    introducers. Takes precedence over QT_WITHOUT_INTRODUCERS.
  */
  QT_FORCE_INTRODUCERS= (1 << 2),

  /// When printing a SELECT, add its number (select_lex->number).
  QT_SHOW_SELECT_NUMBER= (1 << 3),

  /// Don't print a database if it's equal to the connection's database.
  QT_NO_DEFAULT_DB= (1 << 4),

  /// When printing a derived table, don't print its expression, only alias.
  QT_DERIVED_TABLE_ONLY_ALIAS= (1 << 5),

  /// Print in charset of Item::print() argument (typically thd->charset()).
  QT_TO_ARGUMENT_CHARSET= (1 << 6),

  /// Print identifiers without database's name.
  QT_NO_DB= (1 << 7),

  /// Print identifiers without table's name.
  QT_NO_TABLE= (1 << 8),

  /**
    Change all Item_basic_constant to ? (used by query rewrite to compute
    digest.) Un-resolved hints will also be printed in this format.
  */
  QT_NORMALIZED_FORMAT= (1 << 9),

  /**
    If an expression is constant, print the expression, not the value
    it evaluates to. Should be used for error messages, so that they
    don't reveal values.
  */
  QT_NO_DATA_EXPANSION= (1 << 10),
};


#endif  // ENUM_QUERY_TYPE_INCLUDED