ValueError: Some of types cannot be determined by the first 100 rows, please try again with sampling
2018-02-24 14:59
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ValueError: Some of types cannot be determined by the first 100 rows, please try again with sampling
Resolutions:1.Improve sample ratio, e.g.
sqlContext.createDataFrame(rdd, samplingRatio=0.2)
2.Tell spark the explicit schema, e.g.
from pyspark.sql.types import *schema = StructType([ StructField("column_1", StringType(), True), StructField("column_2", IntegerType(), True)])df = sqlContext.createDataFrame(rdd, schema=schema)
Resolutions:1.Improve sample ratio, e.g.
sqlContext.createDataFrame(rdd, samplingRatio=0.2)
2.Tell spark the explicit schema, e.g.
from pyspark.sql.types import *schema = StructType([ StructField("column_1", StringType(), True), StructField("column_2", IntegerType(), True)])df = sqlContext.createDataFrame(rdd, schema=schema)
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