ConvertedType
DEPRECATED: Common types used by frameworks(e.g. hive, pig) using parquet.
ConvertedType is superseded by LogicalType. This enum should not be extended.
See LogicalTypes.md for conversion between ConvertedType and LogicalType.
Constants
- BSON = 20
- An embedded BSON document.
- DATE = 6
- A Date.
- DECIMAL = 5
- A decimal value.
- ENUM = 4
- an enum is converted into a BYTE_ARRAY field.
- INT_16 = 16
- INT_32 = 17
- INT_64 = 18
- INT_8 = 15
- A signed integer value.
- INTERVAL = 21
- An interval of time.
- JSON = 19
- An embedded JSON document.
- LIST = 3
- a list is converted into an optional field containing a repeated field for its values.
- MAP = 1
- a map is converted as an optional field containing a repeated key/value pair.
- MAP_KEY_VALUE = 2
- a key/value pair is converted into a group of two fields.
- TIME_MICROS = 8
- A time.
- TIME_MILLIS = 7
- A time.
- TIMESTAMP_MICROS = 10
- A date/time combination.
- TIMESTAMP_MILLIS = 9
- A date/time combination.
- UINT_16 = 12
- UINT_32 = 13
- UINT_64 = 14
- UINT_8 = 11
- An unsigned integer value.
- UTF8 = 0
- a BYTE_ARRAY actually contains UTF8 encoded chars.
Properties
- $__names : mixed
Constants
BSON
An embedded BSON document.
public
mixed
BSON
= 20
A BSON document embedded within a single BYTE_ARRAY column.
DATE
A Date.
public
mixed
DATE
= 6
Stored as days since Unix epoch, encoded as the INT32 physical type.
DECIMAL
A decimal value.
public
mixed
DECIMAL
= 5
This may be used to annotate BYTE_ARRAY or FIXED_LEN_BYTE_ARRAY primitive types. The underlying byte array stores the unscaled value encoded as two's complement using big-endian byte order (the most significant byte is the zeroth element). The value of the decimal is the value * 10^{-scale}.
This must be accompanied by a (maximum) precision and a scale in the SchemaElement. The precision specifies the number of digits in the decimal and the scale stores the location of the decimal point. For example 1.23 would have precision 3 (3 total digits) and scale 2 (the decimal point is 2 digits over).
ENUM
an enum is converted into a BYTE_ARRAY field.
public
mixed
ENUM
= 4
INT_16
public
mixed
INT_16
= 16
INT_32
public
mixed
INT_32
= 17
INT_64
public
mixed
INT_64
= 18
INT_8
A signed integer value.
public
mixed
INT_8
= 15
The number describes the maximum number of meaningful data bits in the stored value. 8, 16 and 32 bit values are stored using the INT32 physical type. 64 bit values are stored using the INT64 physical type.
INTERVAL
An interval of time.
public
mixed
INTERVAL
= 21
This type annotates data stored as a FIXED_LEN_BYTE_ARRAY of length 12 This data is composed of three separate little endian unsigned integers. Each stores a component of a duration of time. The first integer identifies the number of months associated with the duration, the second identifies the number of days associated with the duration and the third identifies the number of milliseconds associated with the provided duration. This duration of time is independent of any particular timezone or date.
JSON
An embedded JSON document.
public
mixed
JSON
= 19
A JSON document embedded within a single UTF8 column.
LIST
a list is converted into an optional field containing a repeated field for its values.
public
mixed
LIST
= 3
MAP
a map is converted as an optional field containing a repeated key/value pair.
public
mixed
MAP
= 1
MAP_KEY_VALUE
a key/value pair is converted into a group of two fields.
public
mixed
MAP_KEY_VALUE
= 2
TIME_MICROS
A time.
public
mixed
TIME_MICROS
= 8
The total number of microseconds since midnight. The value is stored as an INT64 physical type.
TIME_MILLIS
A time.
public
mixed
TIME_MILLIS
= 7
The total number of milliseconds since midnight. The value is stored as an INT32 physical type.
TIMESTAMP_MICROS
A date/time combination.
public
mixed
TIMESTAMP_MICROS
= 10
Date and time recorded as microseconds since the Unix epoch. The value is stored as an INT64 physical type.
TIMESTAMP_MILLIS
A date/time combination.
public
mixed
TIMESTAMP_MILLIS
= 9
Date and time recorded as milliseconds since the Unix epoch. Recorded as a physical type of INT64.
UINT_16
public
mixed
UINT_16
= 12
UINT_32
public
mixed
UINT_32
= 13
UINT_64
public
mixed
UINT_64
= 14
UINT_8
An unsigned integer value.
public
mixed
UINT_8
= 11
The number describes the maximum number of meaningful data bits in the stored value. 8, 16 and 32 bit values are stored using the INT32 physical type. 64 bit values are stored using the INT64 physical type.
UTF8
a BYTE_ARRAY actually contains UTF8 encoded chars.
public
mixed
UTF8
= 0
Properties
$__names
public
static mixed
$__names
= [0 => 'UTF8', 1 => 'MAP', 2 => 'MAP_KEY_VALUE', 3 => 'LIST', 4 => 'ENUM', 5 => 'DECIMAL', 6 => 'DATE', 7 => 'TIME_MILLIS', 8 => 'TIME_MICROS', 9 => 'TIMESTAMP_MILLIS', 10 => 'TIMESTAMP_MICROS', 11 => 'UINT_8', 12 => 'UINT_16', 13 => 'UINT_32', 14 => 'UINT_64', 15 => 'INT_8', 16 => 'INT_16', 17 => 'INT_32', 18 => 'INT_64', 19 => 'JSON', 20 => 'BSON', 21 => 'INTERVAL']