QuerySelectExpression 查询选择子句

结构声明

TS Declaration

interface QuerySelectExpression {
    "concept": "QuerySelectExpression", // 产品概念
    "distinct": boolean, // distinct
    "star": boolean, // star
    "selectElements": Array<QueryAggregateExpression | QueryFieldExpression>, // selectElements，当前交互，selectElements 需要支持 QueryAggregateExpression | QueryFieldExpression 类型
}

Java Class

class QuerySelectExpressionTreeNode {
    ConceptEnum concept; // 产品概念
    boolean distinct; // distinct
    boolean star; // star
    List<QueryAggregateExpressionTreeNode | QueryFieldExpressionTreeNode> selectElements; // selectElements，当前交互，selectElements 需要支持 QueryAggregateExpression | QueryFieldExpression 类型
}

JSON Schema

{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$ref": "#/definitions/QuerySelectExpression",
    "definitions": {
        "QuerySelectExpression": {
            "type": "object",
            "properties": {
                "concept": {
                    "type": "string",
                    "const": "QuerySelectExpression"
                },
                "distinct": {
                    "type": "boolean"
                },
                "star": {
                    "type": "boolean"
                },
                "selectElements": {
                    "type": "array",
                    "items": {
                        "anyOf": [
                            {
                                "$ref": "#/definitions/QueryAggregateExpression"
                            },
                            {
                                "$ref": "#/definitions/QueryFieldExpression"
                            }
                        ]
                    }
                }
            },
            "required": [
                "concept",
                "distinct",
                "star",
                "selectElements"
            ],
            "additionalProperties": false
        }
    }
}

示例

简单示例

JSON

{
    "concept": "QuerySelectExpression",
    "distinct": false,
    "star": true,
    "selectElements": []
}

YAML

concept: QuerySelectExpression
distinct: false
star: true
selectElements: []