April_Lie的博客

Calcite 解析SQL Parser 使用 Demo SchemaPlus rootSchema = Frameworks.createRootSchema(true); final FrameworkConfig config = Frameworks.newConfigBuilder() .parserConfig(SqlParser.config...

Calcite - RelTrait/** * RelTrait represents the manifestation of a relational expression trait within * a trait definition. For example, a {@code CallingConvention.JAVA} is a trait * of the {@link...

Calcite - RexNodeRexNode 代表了一个行表达式。常用的 RexNode 类型有 RexLiteral (常量)，RexVariable (变量)，RexCall (含操作符和操作数的表达式).RexCallAn expression formed by a call to an operator with zero or more expressions as oper...