请求将指定MySQL查询语句转换为Elasticsearch查询语句

Hey there! It looks like your MySQL query got cut off (it ends at market_cap AS c...), but based on the fields you've selected so far, I can help you map this to an Elasticsearch Query DSL request.

First, let's recap the visible part of your MySQL query:

SELECT currency.id AS cur_id, currency.currency_name AS cur_name, currency.currency_code AS cur_code, currency.currency_slug AS cur_slug, currency.logo AS cur_logo, currency.added_date AS cur_added_date, currency.mineable_or_not AS mineable_or_not, currency.market_cap AS c...

Assuming you're just selecting these fields without any additional filters (since none are visible in your snippet), here's the equivalent Elasticsearch query:

{
  "size": 1000, // Adjust this based on how many results you need; default is 10
  "_source": {
    "includes": [
      "id",
      "currency_name",
      "currency_code",
      "currency_slug",
      "logo",
      "added_date",
      "mineable_or_not",
      "market_cap"
    ],
    "excludes": []
  },
  "query": {
    "match_all": {} // Equivalent to SELECT * without a WHERE clause
  }
}

Key Differences & Notes: #

• Field Aliasing: Elasticsearch doesn't support renaming fields directly in the query like MySQL's AS. You'll need to handle aliasing (e.g., id → cur_id) either in your application code after fetching results, or use a runtime field if you need it done server-side.
• Index Target: Make sure you send this request to your currency index (adjust the index name in your API call if it's different).
• Pagination: For large result sets, use the from parameter alongside size to paginate (e.g., "from": 1000, "size": 1000 for the second page of 1000 results).
• Filters/Sorting: If your full MySQL query includes WHERE, ORDER BY, or LIMIT clauses, share those details and I can refine this query to match exactly what you need!

内容的提问来源于stack exchange，提问作者Muhammad Awan