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Introduce GenericAppenderFactory and GenericAppenderHelper #1340
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return Avro.write(outputFile) | ||
.schema(schema) | ||
.createWriterFunc(DataWriter::create) | ||
.named(fileFormat.name()) |
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The name
is usually a table name for the given schema. not fileFormat
. we may need to remove this line, or set it with a reasonable table name.
return Parquet.write(outputFile) | ||
.schema(schema) | ||
.createWriterFunc(GenericParquetWriter::buildWriter) | ||
.named(fileFormat.name()) |
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ditto
return ORC.write(outputFile) | ||
.schema(schema) | ||
.createWriterFunc(GenericOrcWriter::buildWriter) | ||
.setAll(config) |
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To keep the consistent semantics, I suggest to set overwrite=true
. Both flink and spark's FileAppenderFactory have enabled the overwrite.
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Yes, they do.
.withPath(file.toURI().toString()) | ||
.withMetrics(appender.metrics()) | ||
.withFormat(format); | ||
if (partition != null) { |
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We could call the withPartition(partition)
directly without this nullable check, because builder
will handle this inside it.
Thanks @JingsongLi, looks good. |
In #1293, we found lot of places use
switch case avro orc parquet
to create appender, these logicals can be extract toGenericAppenderFactory
.