Hyukjin Kwon created SPARK-21224:
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Summary: Support a DDL-formatted string in DataFrameReader.schema
in R
Key: SPARK-21224
URL: https://issues.apache.org/jira/browse/SPARK-21224
Project: Spark
Issue Type: Improvement
Components: SparkR
Affects Versions: 2.2.0
Reporter: Hyukjin Kwon
Priority: Minor
This might have to be a followup for SPARK-20431 but I just decided to make
this separate for R specifically as it might be confused.
Please refer the discussion in the PR and SPARK-20431.
In a simple view, this JIRA describes the support for a DDL-formetted string as
schema as below:
{code}
mockLines <- c("{\"name\":\"Michael\"}",
"{\"name\":\"Andy\", \"age\":30}",
"{\"name\":\"Justin\", \"age\":19}")
jsonPath <- tempfile(pattern = "sparkr-test", fileext = ".tmp")
writeLines(mockLines, jsonPath)
df <- read.df(jsonPath, "json", "name STRING, age DOUBLE")
collect(df)
{code}
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