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https://issues.apache.org/jira/browse/SPARK-42193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hyukjin Kwon resolved SPARK-42193.
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Resolution: Cannot Reproduce
> dataframe API filter criteria throwing ParseException when reading a JDBC
> column name with special characters
> -------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-42193
> URL: https://issues.apache.org/jira/browse/SPARK-42193
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Shanmugavel Kuttiyandi Chandrakasu
> Priority: Minor
>
> *On Spark 3.3.0,* when reading from a JDBC table(used SQLite to repro) using
> spark.read.jdbc command with sqlite-jdbc:3.34.0.jar on a table and column
> name containing special characters. Dataframe API filter criteria fails with
> parse Exception
> *[#Script:]*
> {code:java}
> from pyspark.sql import SparkSession
> spark = SparkSession \
> .builder \
> .appName("Databricks Support") \
> .config("spark.jars.packages", "org.xerial:sqlite-jdbc:3.34.0") \
> .getOrCreate()
> columns = ["id", "/abc/column", "value"]
> data = [(1, 'A', 100), (2, 'B', 200), (3, 'B', 300)]
> rdd = spark.sparkContext.parallelize(data)
> df = spark.createDataFrame(rdd).toDF(*columns)
> options = {"url":
> "jdbc:sqlite:/<local-path>/spark-3.3.1-bin-hadoop3/jars/test.db", "dbtable":
> '"/abc/table"', "driver": "org.sqlite.JDBC"}
> df.coalesce(1).write.format("jdbc").options(**options).mode("append").save()
> df_1 = spark.read.format("jdbc") \
> .option("url",
> "jdbc:sqlite:/<local-path>/spark-3.3.1-bin-hadoop3/jars/test.db") \
> .option("dbtable", '"/abc/table"') \
> .option("driver", "org.sqlite.JDBC") \
> .load()
> df_2 = df_1.filter("`/abc/column` = 'B'")
> df_2.show() {code}
> Error:
> {code:java}
> ``` Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File
> "/opt/homebrew/Cellar/apache-spark/3.3.1/libexec/python/pyspark/sql/dataframe.py",
> line 606, in show
> print(self._jdf.showString(n, 20, vertical))
> File
> "/opt/homebrew/Cellar/apache-spark/3.3.1/libexec/python/lib/py4j-0.10.9.5-src.zip/py4j/java_gateway.py",
> line 1321, in __call__
> File
> "/opt/homebrew/Cellar/apache-spark/3.3.1/libexec/python/pyspark/sql/utils.py",
> line 196, in deco
> raise converted from None
> pyspark.sql.utils.ParseException:
> Syntax error at or near '/': extra input '/'(line 1, pos 0)
> == SQL ==
> /abc/column
> ^^^``` {code}
> However, when using Spark 3.2.1, we are able to successfully apply
> dataframe.filter option
> {code:java}
> >>> df_2.show()
> +---+-----------+-----+
> | id|/abc/column|value|
> +---+-----------+-----+
> | 2| B| 200|
> | 3| B| 300|
> +---+-----------+-----+ {code}
> *Repro steps:*
> # Download [Spark 3.2.1 in local
> |https://archive.apache.org/dist/spark/spark-3.2.1/spark-3.2.1-bin-hadoop3.2.tgz]
> # Download and Copy the sqlite-jdbc:3.34.0.jar into the jar folder present
> in the local spark download folder
> # Run the above [#script] by providing the jar path
> # This will create a */abc/table* with column */abc/column* and returns
> result when applying filter criteria
> # Download spark ** [3.3.0 in
> local|https://www.apache.org/dyn/closer.lua/spark/spark-3.3.1/spark-3.3.1-bin-hadoop3.tgz]
> # Repeat #2, #3
> # Fails with parse exception.
> could you please let us know how we can filter on the special characters
> column or escape them on spark version 3.3.0?
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