pyflink.table.types.DataTypes.MAP

static DataTypes.MAP(key_type: DataType, value_type: DataType, nullable: bool = True) → MapType

Data type of an associative array that maps keys to values. A map cannot contain duplicate keys; each key can map to at most one value.

There is no restriction of key types; it is the responsibility of the user to ensure uniqueness. The map type is an extension to the SQL standard.

Parameters

• key_type – DataType of the keys in the map.

• value_type – DataType of the values in the map.

• nullable – boolean, whether the type can be null (None) or not.