错误的原因可能是因为Shapefile中的一些字段与Apache Sedona所需要的字段类型不匹配,如字段类型是字符串而不是数字。解决此问题的方法是使用GeoSpark的格式转换工具将Shapefile转换为GeoJSON或CSV格式,并确保字段类型与Apache Sedona兼容。下面是代码示例:
from pyspark.sql.functions import col
from pyspark.sql.types import StructType, StructField, StringType, DoubleType
from geospark.utils.adapter import Adapter
shapefile_path = "path/to/shapefile.shp"
schema = StructType([
StructField("field1", StringType()),
StructField("field2", DoubleType()),
StructField("field3", StringType()),
StructField("field4", DoubleType())
])
# Read Shapefile
df = spark.read.format("shapefile").option("path", shapefile_path).schema(schema).load()
# Convert Shapefile to GeoJSON
df_geojson = Adapter.toGeoJSON(df)
# Convert Shapefile to CSV
df_csv = Adapter.toCsv(df, "path/to/csv/")