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https://issues.apache.org/jira/browse/SPARK-50793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot reassigned SPARK-50793:
--------------------------------------
Assignee: Apache Spark
> MySQL JDBC Connector failed to cast DOUBLE, LONGTEXT, BIGINT and BLOB types
> ---------------------------------------------------------------------------
>
> Key: SPARK-50793
> URL: https://issues.apache.org/jira/browse/SPARK-50793
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 4.0.0, 3.4.4, 3.5.4
> Reporter: Xiaoguang Sun
> Assignee: Apache Spark
> Priority: Major
> Labels: pull-request-available
>
> In MySQL, the type identifier used in cast function is different from their
> type name. MySQL connector generates SQL which fails with cast.
> These are the steps to reproduce.
> # CREATE TABLE test_cast(string_col STRING, short_col SHORT, integer_col
> INTEGER, long_col LONG, binary_col BINARY, double_col DOUBLE);
> # INSERT INTO test_cast VALUES('0', 0, 0, 0, x'30', 0.0);
> # SELECT * FROM test_cast WHERE CAST(string_col AS BINARY) = binary_col;
> # SELECT * FROM test_cast WHERE CAST(string_col AS LONG) = long_col;
> # SELECT * FROM test_cast WHERE CAST(long_col AS STRING) = '0';
> # SELECT * FROM test_cast WHERE CAST(binary_col AS STRING) = '0';
> # SELECT * FROM test_cast WHERE CAST(double_col AS STRING) = '0';
> # SELECT * FROM test_cast WHERE CAST(string_col AS DOUBLE) = double_col;
> # SELECT * FROM test_cast WHERE CAST(long_col AS DOUBLE) = double_col;
> {code:java}
> at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:227)
> at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:96)
> at
> org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1137)
> at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1146)
> at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
> Caused by: java.sql.SQLSyntaxErrorException: You have an error in your SQL
> syntax; check the manual that corresponds to your MySQL server version for
> the right syntax to use near "LONG) = `long_col`) "
> at
> com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120)
> at
> com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
> at
> com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953)
> at
> com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:1003)
> at
> org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD.compute(JDBCRDD.scala:287)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:374)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:338)
> at
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:374)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:338)
> at
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:374)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:338)
> at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:93)
> at
> org.apache.spark.TaskContext.runTaskWithListeners(TaskContext.scala:171)
> at org.apache.spark.scheduler.Task.run(Task.scala:146)
> at
> org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$6(Executor.scala:658)
> at
> org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally(SparkErrorUtils.scala:80)
> at
> org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally$(SparkErrorUtils.scala:77)
> at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:99)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:661)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
> at java.base/java.lang.Thread.run(Thread.java:1583)
> {code}
> {code:java}
> at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:227)
> at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:96)
> at
> org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1137)
> at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1146)
> at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
> Caused by: java.sql.SQLSyntaxErrorException: You have an error in your SQL
> syntax; check the manual that corresponds to your MySQL server version for
> the right syntax to use near "LONGTEXT) = '0') "
> at
> com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120)
> at
> com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
> at
> com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953)
> at
> com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:1003)
> at
> org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD.compute(JDBCRDD.scala:287)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:374)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:338)
> at
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:374)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:338)
> at
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:374)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:338)
> at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:93)
> at
> org.apache.spark.TaskContext.runTaskWithListeners(TaskContext.scala:171)
> at org.apache.spark.scheduler.Task.run(Task.scala:146)
> at
> org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$6(Executor.scala:658)
> at
> org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally(SparkErrorUtils.scala:80)
> at
> org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally$(SparkErrorUtils.scala:77)
> at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:99)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:661)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
> at java.base/java.lang.Thread.run(Thread.java:1583)
> {code}
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