Amir Bar-Or created SPARK-26280:
-----------------------------------
Summary: Spark will read entire CSV file even when limit is used
Key: SPARK-26280
URL: https://issues.apache.org/jira/browse/SPARK-26280
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.3.1
Reporter: Amir Bar-Or
When you read CSV as below , the parser still waste time and read the entire
file:
var lineDF1 = spark.read
.format("com.databricks.spark.csv")
.option("header", "true") //reading the headers
.option("mode", "DROPMALFORMED")
.option("delimiter",",")
.option("inferSchema", "false")
.schema(line_schema)
.load(i_lineitem)
.lineDF1.limit(10)
Even though a LocalLimit is created , this does not stop the FileScan and the
parser from parsing entire file. Is it possible to push the limit down and
stop the parsing ?
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
