doc

type Column struct {
	TableCatalog           string         `db:"TABLE_CATALOG"`
	TableSchema            string         `db:"TABLE_SCHEMA"`
	TableName              string         `db:"TABLE_NAME"`
	ColumnName             string         `db:"COLUMN_NAME"`
	OrdinalPosition        int            `db:"ORDINAL_POSITION"`
	ColumnDefault          sql.NullString `db:"COLUMN_DEFAULT"`
	IsNullable             string         `db:"IS_NULLABLE"`
	DataType               string         `db:"DATA_TYPE"`
	CharacterMaximumLength sql.NullInt64  `db:"CHARACTER_MAXIMUM_LENGTH"`
	CharacterOctetLength   sql.NullInt64  `db:"CHARACTER_OCTET_LENGTH"`
	NumericPrecision       sql.NullInt64  `db:"NUMERIC_PRECISION"`
	NumericScale           sql.NullInt64  `db:"NUMERIC_SCALE"`
	DatetimePrecision      sql.NullInt64  `db:"DATETIME_PRECISION"`
	CharacterSetName       sql.NullString `db:"CHARACTER_SET_NAME"`
	CollationName          sql.NullString `db:"COLLATION_NAME"`
	ColumnType             string         `db:"COLUMN_TYPE"`
	ColumnKey              string         `db:"COLUMN_KEY"`
	Extra                  string         `db:"EXTRA"`
	Privileges             string         `db:"PRIVILEGES"`
	ColumnComment          string         `db:"COLUMN_COMMENT"`
	GenerationExpression   string         `db:"GENERATION_EXPRESSION"`
}

type Table struct {
	TableCatalog   string         `db:"TABLE_CATALOG"`
	TableSchema    string         `db:"TABLE_SCHEMA"`
	TableName      string         `db:"TABLE_NAME"`
	TableType      string         `db:"TABLE_TYPE"`
	Engine         string         `db:"ENGINE"`
	Version        int            `db:"VERSION"`
	RowFormat      string         `db:"ROW_FORMAT"`
	TableRows      int            `db:"TABLE_ROWS"`
	AvgRowLength   int            `db:"AVG_ROW_LENGTH"`
	DataLength     int            `db:"DATA_LENGTH"`
	MaxDataLength  int            `db:"MAX_DATA_LENGTH"`
	IndexLength    int            `db:"INDEX_LENGTH"`
	DataFree       int            `db:"DATA_FREE"`
	AutoIncrement  sql.NullInt64  `db:"AUTO_INCREMENT"`
	CreateTime     string         `db:"CREATE_TIME"`
	UpdateTime     sql.NullString `db:"UPDATE_TIME"`
	CheckTime      sql.NullString `db:"CHECK_TIME"`
	TableCollation string         `db:"TABLE_COLLATION"`
	Checksum       sql.NullInt64  `db:"CHECKSUM"`
	CreateOptions  string         `db:"CREATE_OPTIONS"`
	TableComment   string         `db:"TABLE_COMMENT"`
}