├── 01-simple-query-optimizer ├── pom.xml └── src │ ├── main │ └── java │ │ └── com │ │ └── querifylabs │ │ └── blog │ │ └── optimizer │ │ ├── Optimizer.java │ │ ├── SimpleSchema.java │ │ ├── SimpleTable.java │ │ └── SimpleTableStatistic.java │ └── test │ └── java │ └── com │ └── querifylabs │ └── blog │ └── optimizer │ └── OptimizerTest.java ├── 02-custom-calcite-trait ├── pom.xml └── src │ ├── main │ └── java │ │ └── com │ │ └── querifylabs │ │ └── blog │ │ └── trait │ │ ├── Distribution.java │ │ ├── DistributionTraitDef.java │ │ ├── ExchangeRel.java │ │ ├── Schema.java │ │ └── Table.java │ └── test │ └── java │ └── com │ └── querifylabs │ └── blog │ └── trait │ └── TraitTest.java ├── README.md └── join-enumerator ├── pom.xml └── src ├── main └── java │ └── com │ └── querifylabs │ └── blog │ └── joins │ ├── JoinEnumerator.java │ └── JoinEnumeratorUtils.java └── test └── java └── com └── querifylabs └── blog └── joins ├── JoinEnumeratorTcpdsTest.java └── JoinEnumeratorTest.java 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