arcticdb.version_store.library.SymbolDescription

class arcticdb.version_store.library.SymbolDescription(columns: Tuple[NameWithDType], index: NameWithDType, index_type: str, row_count: int, last_update_time: datetime, date_range: Tuple[datetime, datetime])[source]

A named tuple. Descriptive information about the data stored under a particular symbol.

columns

Columns stored under the symbol.

Type:: Tuple[NameWithDType]

index

Index of the symbol.

Type:: NameWithDType

index_type

Whether the index is a simple index or a multi_index. NA indicates that the stored data does not have an index.

Type:: str {“NA”, “index”, “multi_index”}

row_count

Number of rows.

Type:: int

last_update_time

The time of the last update to the symbol, in UTC.

Type:: datetime64

date_range

The times in UTC that data for this symbol spans. If the data is not timeseries indexed then this value will be (datetime.datetime(1970, 1, 1), datetime.datetime(1970, 1, 1)).

Type:: Tuple[datetime.datetime, datetime.datetime]

__init__()

Methods

`__init__`()
`count`(value, /)	Return number of occurrences of value.

Attributes

`columns`	Alias for field number 0
`date_range`	Alias for field number 5
`index`	Alias for field number 1
`index_type`	Alias for field number 2
`last_update_time`	Alias for field number 4
`row_count`	Alias for field number 3