Greetings,
I've been struggling with both pd.DataFrame.spatial.from_table()/to_table() methods particularly when NaNs (nulls) are in integer columns.
First issue: spatial.to_table() will not write int64 types. Downcasting the offending fields to int32 will fix the issue but only if you don't have NaNs which aren't allowed for int32. Passing the offending columns as float64 will also fix the issue but introduces the second issue below. Note: Line 9 below is not necessary because pandas reads the integer column as float64, however showing to be explicit.
Note: Passing float64 interestingly ends up as integer datatype in EDGB. This image below shows EGDB table metadata.
Second issue: If the float64 approach above is taken then spatial_from_table() throws an error when NaNs are present in integer columns, unless skip_nulls is True (default). Leaving skip_nulls=True is not desirable because valid rows are discarded.
<with skip_nulls=True; notice only two rows returned>
<with skip_nulls=False>
Changing the null_value argument to np.NaN results in same error.
Any troubleshooting advice would be greatly appreciated. Here is the test DataFrame constructor for your use.
import pandas as pd
import numpy as np
from arcgis.features import GeoAccessor, GeoSeriesAccessor
data = {
'string_column': ['A', 'B', 'C', 'D'],
'integer_column': [1, np.NaN, 3, 4],
'float_column': [1.23, 4.56, np.NaN, 10.11],
'datetime_column': pd.to_datetime(['2024-11-22', '2024-11-23'
, '2024-11-24', '2024-11-25'])
}
df = pd.DataFrame.from_dict(data)
df['integer_column'] = df['integer_column'].astype('float64')
display(df)
display(df.info())
df.spatial.to_table(location=sde / tbl)
Thank you.
Tyler
ArcGIS Pro 3.3
Enterprise 11.2 (MSSQL Server)
