3b5ccb12b8
This PR adds the support to read bucketed tables, and correctly populate `outputPartitioning`, so that we can avoid shuffle for some cases. TODO(follow-up PRs): * bucket pruning * avoid shuffle for bucketed table join when use any super-set of the bucketing key. (we should re-visit it after https://issues.apache.org/jira/browse/SPARK-12704 is fixed) * recognize hive bucketed table Author: Wenchen Fan <wenchen@databricks.com> Closes #10604 from cloud-fan/bucket-read. |
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| .. | ||
| avro | ||
| gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro | ||
| java/test/org/apache/spark/sql | ||
| resources | ||
| scala/org/apache/spark/sql | ||
| scripts | ||
| thrift | ||
| README.md | ||
Notes for Parquet compatibility tests
The following directories and files are used for Parquet compatibility tests:
.
├── README.md # This file
├── avro
│ ├── *.avdl # Testing Avro IDL(s)
│ └── *.avpr # !! NO TOUCH !! Protocol files generated from Avro IDL(s)
├── gen-java # !! NO TOUCH !! Generated Java code
├── scripts
│ ├── gen-avro.sh # Script used to generate Java code for Avro
│ └── gen-thrift.sh # Script used to generate Java code for Thrift
└── thrift
└── *.thrift # Testing Thrift schema(s)
To avoid code generation during build time, Java code generated from testing Thrift schema and Avro IDL are also checked in.
When updating the testing Thrift schema and Avro IDL, please run gen-avro.sh and gen-thrift.sh accordingly to update generated Java code.
Prerequisites
Please ensure avro-tools and thrift are installed. You may install these two on Mac OS X via:
$ brew install thrift avro-tools