GArrowType

GArrowType — Type mapping between Arrow and arrow-glib

Types and Values

Object Hierarchy

    GEnum
    ├── GArrowIntervalType
    ├── GArrowTimeUnit
    ╰── GArrowType

Description

GArrowType provides types corresponding to arrow::Type::type values.

Functions

Types and Values

enum GArrowType

They are corresponding to arrow::Type::type values.

Members

GARROW_TYPE_NA

A degenerate NULL type represented as 0 bytes/bits.

 

GARROW_TYPE_BOOLEAN

A boolean value represented as 1-bit.

 

GARROW_TYPE_UINT8

Little-endian 8-bit unsigned integer.

 

GARROW_TYPE_INT8

Little-endian 8-bit signed integer.

 

GARROW_TYPE_UINT16

Little-endian 16-bit unsigned integer.

 

GARROW_TYPE_INT16

Little-endian 16-bit signed integer.

 

GARROW_TYPE_UINT32

Little-endian 32-bit unsigned integer.

 

GARROW_TYPE_INT32

Little-endian 32-bit signed integer.

 

GARROW_TYPE_UINT64

Little-endian 64-bit unsigned integer.

 

GARROW_TYPE_INT64

Little-endian 64-bit signed integer.

 

GARROW_TYPE_HALF_FLOAT

2-byte floating point value.

 

GARROW_TYPE_FLOAT

4-byte floating point value.

 

GARROW_TYPE_DOUBLE

8-byte floating point value.

 

GARROW_TYPE_STRING

UTF-8 variable-length string.

 

GARROW_TYPE_BINARY

Variable-length bytes (no guarantee of UTF-8-ness).

 

GARROW_TYPE_FIXED_SIZE_BINARY

Fixed-size binary. Each value occupies the same number of bytes.

 

GARROW_TYPE_DATE32

int32 days since the UNIX epoch.

 

GARROW_TYPE_DATE64

int64 milliseconds since the UNIX epoch.

 

GARROW_TYPE_TIMESTAMP

Exact timestamp encoded with int64 since UNIX epoch. Default unit millisecond.

 

GARROW_TYPE_TIME32

Exact time encoded with int32, supporting seconds or milliseconds

 

GARROW_TYPE_TIME64

Exact time encoded with int64, supporting micro- or nanoseconds

 

GARROW_TYPE_MONTH_INTERVAL

YEAR_MONTH interval in SQL style.

 

GARROW_TYPE_DAY_TIME_INTERVAL

DAY_TIME interval in SQL style.

 

GARROW_TYPE_DECIMAL128

Precision- and scale-based decimal type with 128-bit. Storage type depends on the parameters.

 

GARROW_TYPE_DECIMAL256

Precision- and scale-based decimal type with 256-bit. Storage type depends on the parameters.

 

GARROW_TYPE_LIST

A list of some logical data type.

 

GARROW_TYPE_STRUCT

Struct of logical types.

 

GARROW_TYPE_SPARSE_UNION

Sparse unions of logical types.

 

GARROW_TYPE_DENSE_UNION

Dense unions of logical types.

 

GARROW_TYPE_DICTIONARY

Dictionary aka Category type.

 

GARROW_TYPE_MAP

A repeated struct logical type.

 

GARROW_TYPE_EXTENSION

Custom data type, implemented by user.

 

GARROW_TYPE_FIXED_SIZE_LIST

Fixed size list of some logical type.

 

GARROW_TYPE_DURATION

Measure of elapsed time in either seconds, milliseconds, microseconds or nanoseconds.

 

GARROW_TYPE_LARGE_STRING

64bit offsets UTF-8 variable-length string.

 

GARROW_TYPE_LARGE_BINARY

64bit offsets Variable-length bytes (no guarantee of UTF-8-ness).

 

GARROW_TYPE_LARGE_LIST

A list of some logical data type with 64-bit offsets.

 

GARROW_TYPE_MONTH_DAY_NANO_INTERVAL

MONTH_DAY_NANO interval in SQL style.

 

enum GArrowTimeUnit

They are corresponding to arrow::TimeUnit::type values.

Members

GARROW_TIME_UNIT_SECOND

Second.

 

GARROW_TIME_UNIT_MILLI

Millisecond.

 

GARROW_TIME_UNIT_MICRO

Microsecond.

 

GARROW_TIME_UNIT_NANO

Nanosecond.

 

enum GArrowIntervalType

They are corresponding to arrow::IntervalType::type values.

Since 7.0.0

Members

GARROW_INTERVAL_TYPE_MONTH

A number of months.

 

GARROW_INTERVAL_TYPE_DAY_TIME

A number of days and milliseconds (fraction of day).

 

GARROW_INTERVAL_TYPE_MONTH_DAY_NANO

A number of months, days and nanoseconds between two dates.