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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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* Copyright (C) 2010 Brian Aker
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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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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include "plugin/show_dictionary/dictionary.h"
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#include "drizzled/table_identifier.h"
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using namespace drizzled;
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static const string VARCHAR("VARCHAR");
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static const string DOUBLE("DOUBLE");
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static const string BLOB("BLOB");
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static const string ENUM("ENUM");
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static const string INTEGER("INTEGER");
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static const string BIGINT("BIGINT");
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static const string DECIMAL("DECIMAL");
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static const string DATE("DATE");
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static const string TIMESTAMP("TIMESTAMP");
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static const string DATETIME("DATETIME");
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ShowColumns::ShowColumns() :
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plugin::TableFunction("DATA_DICTIONARY", "SHOW_COLUMNS")
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add_field("Null", plugin::TableFunction::BOOLEAN);
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add_field("Default_is_NULL", plugin::TableFunction::BOOLEAN);
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add_field("On_Update");
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ShowColumns::Generator::Generator(Field **arg) :
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plugin::TableFunction::Generator(arg),
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is_tables_primed(false),
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is_columns_primed(false),
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statement::Select *select= static_cast<statement::Select *>(getSession().lex->statement);
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table_name.append(select->getShowTable().c_str());
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TableIdentifier identifier(select->getShowSchema().c_str(), select->getShowTable().c_str());
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is_tables_primed= plugin::StorageEngine::getTableDefinition(getSession(),
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bool ShowColumns::Generator::nextColumnCore()
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if (is_columns_primed)
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if (not isTablesPrimed())
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is_columns_primed= true;
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if (column_iterator >= getTableProto().field_size())
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column= getTableProto().field(column_iterator);
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bool ShowColumns::Generator::nextColumn()
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while (not nextColumnCore())
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bool ShowColumns::Generator::populate()
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if (not nextColumn())
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void ShowColumns::Generator::pushType(message::Table::Field::FieldType type)
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case message::Table::Field::VARCHAR:
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case message::Table::Field::DOUBLE:
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case message::Table::Field::BLOB:
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case message::Table::Field::ENUM:
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case message::Table::Field::INTEGER:
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case message::Table::Field::BIGINT:
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case message::Table::Field::DECIMAL:
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case message::Table::Field::DATE:
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case message::Table::Field::TIMESTAMP:
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case message::Table::Field::DATETIME:
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void ShowColumns::Generator::fill()
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pushType(column.type());
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push(column.constraints().is_nullable());
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push(column.options().default_value());
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/* Default_is_NULL */
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push(column.options().default_null());
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push(column.options().update_value());