INT96 types and Maps without OriginalType cause exceptions in PigSchemaConverter

Trying to load parquet files in Pig, that have the following causes an exception and parsing to fail:

• INT96 fields, for example:

  message spark_schema {
    optional int96 datetime;
  }
  

  The Exception thrown is:

  Failed to parse: can't convert optional int96 myInt96
  	at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:201)
  	at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1791)
  	at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1764)
  	at org.apache.pig.PigServer.registerQuery(PigServer.java:707)
  	at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1075)
  	at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:505)
  	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:231)
  	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:206)
  	at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:66)
  	at org.apache.pig.Main.run(Main.java:564)
  	at org.apache.pig.Main.main(Main.java:176)
  	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.apache.hadoop.util.RunJar.run(RunJar.java:234)
  	at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
  Caused by: org.apache.parquet.pig.SchemaConversionException: can't convert optional int96 myInt96
  	at org.apache.parquet.pig.PigSchemaConverter.convertFields(PigSchemaConverter.java:202)
  	at org.apache.parquet.pig.PigSchemaConverter.convert(PigSchemaConverter.java:178)
  	at org.apache.parquet.pig.TupleReadSupport.getPigSchemaFromMultipleFiles(TupleReadSupport.java:95)
  	at org.apache.parquet.pig.ParquetLoader.initSchema(ParquetLoader.java:300)
  	at org.apache.parquet.pig.ParquetLoader.setInput(ParquetLoader.java:183)
  	at org.apache.parquet.pig.ParquetLoader.getSchema(ParquetLoader.java:285)
  	at org.apache.pig.newplan.logical.relational.LOLoad.getSchemaFromMetaData(LOLoad.java:175)
  	at org.apache.pig.newplan.logical.relational.LOLoad.<init>(LOLoad.java:89)
  	at org.apache.pig.parser.LogicalPlanBuilder.buildLoadOp(LogicalPlanBuilder.java:901)
  	at org.apache.pig.parser.LogicalPlanGenerator.load_clause(LogicalPlanGenerator.java:3568)
  	at org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1625)
  	at org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:1102)
  	at org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:560)
  	at org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:421)
  	at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:191)
  	... 16 more
  Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 0: NYI
  	at org.apache.parquet.pig.PigSchemaConverter$1.convertINT96(PigSchemaConverter.java:242)
  	at org.apache.parquet.pig.PigSchemaConverter$1.convertINT96(PigSchemaConverter.java:214)
  	at org.apache.parquet.schema.PrimitiveType$PrimitiveTypeName$7.convert(PrimitiveType.java:223)
  	at org.apache.parquet.pig.PigSchemaConverter.getSimpleFieldSchema(PigSchemaConverter.java:213)
  	at org.apache.parquet.pig.PigSchemaConverter.getFieldSchema(PigSchemaConverter.java:320)
  	at org.apache.parquet.pig.PigSchemaConverter.convertFields(PigSchemaConverter.java:193)
  	... 30 more
  

• Map Types without OriginalType, for example:

  message spark_schema {
    optional binary a;
    optional group b (MAP) {
      repeated group map {
        required binary key;
        optional group value {
          optional fixed_len_byte_array(5) c;
          optional fixed_len_byte_array(7) d;
        }
      }
    }
  }
  

  The Exception thrown is:

  ERROR 1200: null
  
  Failed to parse: null
  	at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:201)
  	at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1791)
  	at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1764)
  	at org.apache.pig.PigServer.registerQuery(PigServer.java:707)
  	at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1075)
  	at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:505)
  	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:231)
  	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:206)
  	at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:66)
  	at org.apache.pig.Main.run(Main.java:564)
  	at org.apache.pig.Main.main(Main.java:176)
  	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.apache.hadoop.util.RunJar.run(RunJar.java:234)
  	at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
  Caused by: java.lang.NullPointerException
  	at org.apache.parquet.pig.PigSchemaConverter.getComplexFieldSchema(PigSchemaConverter.java:281)
  	at org.apache.parquet.pig.PigSchemaConverter.getFieldSchema(PigSchemaConverter.java:322)
  	at org.apache.parquet.pig.PigSchemaConverter.convertFields(PigSchemaConverter.java:193)
  	at org.apache.parquet.pig.PigSchemaConverter.convert(PigSchemaConverter.java:178)
  	at org.apache.parquet.pig.TupleReadSupport.getPigSchemaFromMultipleFiles(TupleReadSupport.java:95)
  	at org.apache.parquet.pig.ParquetLoader.initSchema(ParquetLoader.java:300)
  	at org.apache.parquet.pig.ParquetLoader.setInput(ParquetLoader.java:183)
  	at org.apache.parquet.pig.ParquetLoader.getSchema(ParquetLoader.java:285)
  	at org.apache.pig.newplan.logical.relational.LOLoad.getSchemaFromMetaData(LOLoad.java:175)
  	at org.apache.pig.newplan.logical.relational.LOLoad.<init>(LOLoad.java:89)
  	at org.apache.pig.parser.LogicalPlanBuilder.buildLoadOp(LogicalPlanBuilder.java:901)
  	at org.apache.pig.parser.LogicalPlanGenerator.load_clause(LogicalPlanGenerator.java:3568)
  	at org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1625)
  	at org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:1102)
  	at org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:560)
  	at org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:421)
  	at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:191)
  	... 16 more