Data model or table summarizing equivalent key - SQL statement pairs

I would like to work on #18 and in order to do that I think I need to build a table of equivalent keys in your JSON output and their SQL equivalent. I want to start on something simple select statments with a few types of functions, aggregations, and joins. Is there any existing table showing descriptions of the equivalent SQL statements, where any related content can be found in the JSON tree?

| Key | description with example and related keys |
|- |-|
| CompoundIdentifier | tableAlias.columnName with `[0]['value'] = "tableAlias"` and `[1]['value'] = "columnName"` separated by `.` with the first portion of the identifier corresponding to a table alias found in `join.#.relation.Table.alias.name.value`

先審閱 issue #18，並釐清提議表格的預期範圍。定義它應涵蓋哪些 SQL 陳述式、函式、聚合和 joins，然後為每個對應的 JSON 鍵撰寫文件，包含一個範例以及相關鍵的參照；當約定的涵蓋範圍完整且映射經過審查後，即視為完成。

由索引模型根據 Issue 內容生成。