[jira] [Created] (BEAM-8897) JdbcIO issue when type is Numeric

["Mark Gates (Jira)" <ji...@apache.org>]

Mark Gates created BEAM-8897:
--------------------------------

             Summary: JdbcIO issue when type is Numeric
                 Key: BEAM-8897
                 URL: https://issues.apache.org/jira/browse/BEAM-8897
             Project: Beam
          Issue Type: Bug
          Components: io-java-jdbc
    Affects Versions: 2.16.0
         Environment: Java 8
            Reporter: Mark Gates



The actual use case is such that I am connecting to Oracle via JDBC making the query: "select 1 from dual".

The number type results in an exception. Example:


{code:java}
PCollection<Row> row = p.apply(
        JdbcIO.readRows()
            .withDataSourceProviderFn(JdbcIO.PoolableDataSourceProvider.of(configuration))
            .withQuery("select 1 as t1 from dual")
            .withFetchSize(10000)
            .withOutputParallelization(true));


    row.apply(ParDo.of(new DoFn<Row, Row>() {
      @ProcessElement
      public void processElement(@Element Row row, OutputReceiver<Row> out, ProcessContext pc) {
        System.out.println(row.getSchema().toString() + " : " + row.toString());
        out.output(row);
      }
    }));

    p.run().waitUntilFinish();
{code}


Exception:
Exception in thread "main" org.apache.beam.sdk.Pipeline$PipelineExecutionException: java.lang.IllegalArgumentException
	at org.apache.beam.runners.direct.DirectRunner$DirectPipelineResult.waitUntilFinish(DirectRunner.java:348)
	at org.apache.beam.runners.direct.DirectRunner$DirectPipelineResult.waitUntilFinish(DirectRunner.java:318)
	at org.apache.beam.runners.direct.DirectRunner.run(DirectRunner.java:213)
	at org.apache.beam.runners.direct.DirectRunner.run(DirectRunner.java:67)
	at org.apache.beam.sdk.Pipeline.run(Pipeline.java:315)
	at org.apache.beam.sdk.Pipeline.run(Pipeline.java:301)
	at SimpleJdbc.main(SimpleJdbc.java:45)
Caused by: java.lang.IllegalArgumentException
	at org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkArgument(Preconditions.java:127)
	at org.apache.beam.sdk.io.jdbc.LogicalTypes$FixedPrecisionNumeric.toInputType(LogicalTypes.java:237)
	at org.apache.beam.sdk.io.jdbc.LogicalTypes$FixedPrecisionNumeric.toInputType(LogicalTypes.java:221)
	at org.apache.beam.sdk.io.jdbc.SchemaUtil.lambda$createLogicalTypeExtractor$ca0ab2ec$1(SchemaUtil.java:272)
	at org.apache.beam.sdk.io.jdbc.SchemaUtil$BeamRowMapper.mapRow(SchemaUtil.java:337)
	at org.apache.beam.sdk.io.jdbc.SchemaUtil$BeamRowMapper.mapRow(SchemaUtil.java:315)
	at org.apache.beam.sdk.io.jdbc.JdbcIO$ReadFn.processElement(JdbcIO.java:854)



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