[HUDI-826] Spark to avro schema in 0.6 incompatible with 0.5 for fixed types

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.9.0
• Assignee: Unassigned
• Reporter: Alexander Filipchik
• Created: 21/Apr/20 20:33
• Updated: 27/Mar/22 10:19

Description

Let's say we had some dataset created with SQL transformer using a query: 

// select bla AS DECIMAL(20, 9)) bla

In 0.5 spark->avro converter (Databrics) would generate something like:

 

// {
  "name": "bla",
  "type": [
    "string", 
    "null"    
  ]
},

in 0.6 (Spark):

 

 

// {
  "name": "bla",
  "type": [    
    {
      "type": "fixed",
      "name": "order_subtotal",
      "namespace": "",
      "size": 16,
      "logicalType": "decimal",
      "precision": 38,
      "scale": 17
    }, "null"

  ]
},

types are very different in that case. During the merge reader would fail with:

// 	at org.apache.parquet.hadoop.InternalParquetRecordReader.nextKeyValue(InternalParquetRecordReader.java:251)
	at org.apache.parquet.hadoop.ParquetReader.read(ParquetReader.java:132)
	at org.apache.parquet.hadoop.ParquetReader.read(ParquetReader.java:136)
	at org.apache.hudi.utilities.TestCss.testParquetWithSchema(TestCss.java:270)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
Caused by: java.lang.ArrayIndexOutOfBoundsException
	at java.lang.System.arraycopy(Native Method)
	at org.apache.avro.generic.GenericData.createFixed(GenericData.java:1168)
	at org.apache.parquet.avro.AvroConverters$FieldFixedConverter.convert(AvroConverters.java:310