TableToArrowTable

Summary

Converts a table or feature class to an Apache Arrow table.

Discussion

Apache Arrow is a standard cross-platform in-memory representation of columnar data. An Arrow table is a two-dimensional tabular representation in which columns are Arrow chunked arrays. The data types for the columns are determined by the field types of the input table or feature class, with support for types unique to ArcGIS Pro provided by Arrow extension types.

Geoprocessing tools that accept a table or feature class as input (and do not modify the input) will accept a PyArrow table as input. While a geoprocessing tool will accept an Arrow table as input, a tool will not output an Arrow table.

Learn more about Apache Arrow in ArcGIS

Syntax

TableToArrowTable (in_table)

Parameter	Explanation	Data Type
in_table	The feature class, layer, table, or table view.	String

Return Value

Data Type	Explanation
PyArrowTable	The output pyarrow.Table. See the pyarrow.Table object API.

Code sample

TableToArrowTable example

Convert a feature class to an Arrow table and count the number of counties in the dataset.

import arcpy

input = r'C:\data\usa.gdb\USA\counties'
arrow_table = arcpy.da.TableToArrowTable(input)

# Get the number of counties in the dataset
count = arcpy.management.GetCount(arrow_table)
print("Number of US Counties:", count)