GArrowType: Apache Arrow GLib Reference Manual

GArrowType

GArrowType — Type mapping between Arrow and arrow-glib

Types and Values

enum	GArrowType
enum	GArrowTimeUnit
enum	GArrowIntervalType

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.
GARROW_TYPE_RUN_END_ENCODED	Run-end encoded data.

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.