Thank you very much. Benchao Li <[email protected]> 于2022年5月12日周四 13:34写道：
> Hi guangyuan, > > The core logic lies in SqlValidatorImpl[1], you can start from there. > Along with SqlValidator, there are two core concept: SqlValidatorScope > and SqlValidatorNamespace. > > Besides, there are many validation tests in SqlValidatorTest[2], you can > use these tests to debug step by step. I used it a lot, and it really > helps. > > [1] > > https://github.com/apache/calcite/blob/main/core/src/main/java/org/apache/calcite/sql/validate/SqlValidatorImpl.java > [2] > > https://github.com/apache/calcite/blob/main/core/src/test/java/org/apache/calcite/test/SqlValidatorTest.java > > guangyuan wang <[email protected]> 于2022年5月12日周四 10:28写道： > > > Dear all > > I'm reading the source code in the "org.apache.calcite.sql.validate" > > package. There are so many classes in the package, that it is too > > complicated to understand. > > Are there any design documents about SQL validation in calcite? Or > any > > suggestions about understanding SQL validation in calcite? > > Thanks a lot. > > > > > -- > > Best, > Benchao Li >
