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Written from Google proto example
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void print_field(const drizzle::Table::Field *field)
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using namespace drizzle;
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cout << "\t`" << field->name() << "`";
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switch (field->type())
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case Table::Field::DOUBLE:
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case Table::Field::VARCHAR:
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cout << " VARCHAR(" << field->string_options().length() << ")";
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case Table::Field::TEXT:
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case Table::Field::BLOB:
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case Table::Field::ENUM:
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for (x= 0; x < field->set_options().value_size() ; x++)
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const string type= field->set_options().value(x);
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cout << "'" << type << "'";
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case Table::Field::SET:
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case Table::Field::TINYINT:
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case Table::Field::SMALLINT:
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case Table::Field::INTEGER:
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case Table::Field::BIGINT:
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case Table::Field::DECIMAL:
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cout << " DECIMAL(" << field->numeric_options().precision() << "," << field->numeric_options().scale() << ") ";
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case Table::Field::VARBINARY:
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cout << " VARBINARY(" << field->string_options().length() << ") ";
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case Table::Field::DATE:
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case Table::Field::TIME:
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case Table::Field::TIMESTAMP:
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cout << " TIMESTAMP ";
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case Table::Field::DATETIME:
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if (field->type() == Table::Field::INTEGER
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|| field->type() == Table::Field::BIGINT
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|| field->type() == Table::Field::SMALLINT
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|| field->type() == Table::Field::TINYINT) {
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if (field->has_constraints()
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&& field->constraints().has_is_unsigned())
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if (field->constraints().is_unsigned())
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if (field->has_numeric_options() &&
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field->numeric_options().is_autoincrement())
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cout << " AUTOINCREMENT ";
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if (! field->has_constraints()
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&& field->constraints().is_nullable())
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if (field->type() == Table::Field::TEXT
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|| field->type() == Table::Field::VARCHAR) {
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if (field->string_options().has_charset())
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cout << " CHARACTER SET " << field->string_options().charset();
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if (field->string_options().has_collation())
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cout << " COLLATE " << field->string_options().collation();
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if (field->options().has_default_value())
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cout << " DEFAULT `" << field->options().default_value() << "` " ;
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if (field->type() == Table::Field::TIMESTAMP)
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if (field->timestamp_options().has_auto_updates()
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&& field->timestamp_options().auto_updates())
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cout << " ON UPDATE CURRENT_TIMESTAMP";
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if (field->has_comment())
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cout << " COMMENT `" << field->comment() << "` ";
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void print_engine(const drizzle::Table::StorageEngine *engine) {
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using namespace drizzle;
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cout << " ENGINE = " << engine->name() << endl;
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for (x= 0; x < engine->option_size(); ++x) {
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const Table::StorageEngine::EngineOption option= engine->option(x);
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cout << "\t" << option.name() << " = " << option.value() << endl;
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void print_index(const drizzle::Table::Index *index) {
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using namespace drizzle;
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if (index->is_primary())
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else if (index->is_unique())
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cout << " KEY `" << index->name() << "` (";
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for (x= 0; x < index->index_part_size() ; x++)
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const Table::Index::IndexPart part= index->index_part(x);
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cout << "`" << part.field().name() << "`";
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if (part.has_compare_length())
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cout << "(" << part.compare_length() << ")";
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void print_table(const drizzle::Table *table)
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using namespace drizzle;
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if (table->type() == Table::TEMPORARY)
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cout << "TEMPORARY ";
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cout << "TABLE `" << table->name() << "` (" << endl;
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for (x= 0; x < table->field_size() ; x++)
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const Table::Field field = table->field(x);
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for (x= 0; x < table->index_size() ; x++)
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const Table::Index index= table->index(x);
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cout << "," << endl;;
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cout << ") " << endl;
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print_engine(&table->engine());
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if (table->has_options())
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print_table_options(&table->options());
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if (table->has_stats())
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print_table_stats(&table->stats());
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if (table->has_comment())
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cout << " COMMENT = `" << table->comment() << "` " << endl;
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void print_table_stats(const drizzle::Table::TableStats *stats) {
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void print_table_options(const drizzle::Table::TableOptions *options) {
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if (options->has_collation())
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cout << " COLLATE = `" << options->collation() << "` " << endl;
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if (options->has_charset())
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cout << " CHARACTER SET = `" << options->charset() << "` " << endl;
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int main(int argc, char* argv[])
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GOOGLE_PROTOBUF_VERIFY_VERSION;
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cerr << "Usage: " << argv[0] << " SCHEMA" << endl;
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drizzle::Table table;
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// Read the existing address book.
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fstream input(argv[1], ios::in | ios::binary);
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if (!table.ParseFromIstream(&input))
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cerr << "Failed to parse table." << endl;