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https://issues.apache.org/jira/browse/SPARK-18419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-18419:
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Summary: [SPARK-18419][SQL] Fix `JDBCOptions.asConnectionProperties` to be
case-insensitive (was: Fix JDBCOptions and DataSource to be case-insensitive
for JDBCOptions keys)
> [SPARK-18419][SQL] Fix `JDBCOptions.asConnectionProperties` to be
> case-insensitive
> ----------------------------------------------------------------------------------
>
> Key: SPARK-18419
> URL: https://issues.apache.org/jira/browse/SPARK-18419
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Dongjoon Hyun
> Priority: Minor
>
> This issue aims to fix the followings.
> **A. Fix `JDBCOptions.asConnectionProperties` to be case-insensitive.**
> `JDBCOptions.asConnectionProperties` is designed to filter JDBC options out,
> but it fails to handle `CaseInsensitiveMap` correctly. For the following
> example, it returns `Map('numpartitions' -> "10")` as a wrong result and the
> assertion fails.
> {code}
> val options = new JDBCOptions(new CaseInsensitiveMap(Map(
> "url" -> "jdbc:mysql://localhost:3306/temp",
> "dbtable" -> "t1",
> "numPartitions" -> "10")))
> assert(options.asConnectionProperties.isEmpty)
> {code}
> **B. Fix `DataSource` to use `CaseInsensitiveMap` consistently.**
> `DataSource` partially use `CaseInsensitiveMap` in code-path. For example,
> the following fails to find `url`.
> {code}
> val df = spark.createDataFrame(sparkContext.parallelize(arr2x2), schema2)
> df.write.format("jdbc")
> .option("URL", url1)
> .option("dbtable", "TEST.SAVETEST")
> .options(properties.asScala)
> .save()
> {code}
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