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<meta property="og:description" content="Hi, I am not too familiar with SQL queries but I am trying to setup a SQL redash query where I would like to parse an input query parameter. For example: I have one query parameter called model_one. This is basically a comma separated input model_name,run_id. Example: abcd,1234 I am trying to run a query as: SELECT run_id, model_name, username, FROM test.table WHERE (model_name LIKE SUBSTRING_INDEX('{{model_one}}', '/', 1) AND (run_id LIKE '%SUBSTRING_INDEX('{{model_one}}', ..." />
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<a href="/t/parsing-splitting-query-text-parameter/10606">Parsing/splitting query text parameter</a>
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<p>Hi, I am not too familiar with SQL queries but I am trying to setup a SQL redash query where I would like to parse an input query parameter.</p>
<p>For example: I have one query parameter called model_one. This is basically a comma separated input model_name,run_id. Example: abcd,1234</p>
<p>I am trying to run a query as:</p>
<pre><code class="lang-auto">SELECT run_id,
model_name,
username,
FROM test.table
WHERE (model_name LIKE SUBSTRING_INDEX('{{model_one}}', '/', 1)
AND (run_id LIKE '%SUBSTRING_INDEX('{{model_one}}', '/', 1)%'))
</code></pre>
<p>But this is giving me an error:</p>
<pre><code class="lang-auto">Function substring_index not registered
</code></pre>
<p>Is it possible to split the text parameter input in query code?</p>
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<time itemprop='datePublished' datetime='2022-06-14T17:34:05Z' class='post-time'>
June 14, 2022, 5:34pm
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<p>There’s no reason Redash won’t support this. It just depends which database you’re querying. For example, the error you see:</p>
<aside class="quote no-group" data-username="anjandeepsahni" data-post="1" data-topic="10606">
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<p><code>Function substring_index not registered</code></p>
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<p>comes from the data source you are querying. It doesn’t have a <code>substring_index</code> function. What data source is this?</p>
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<p>Is it possible to split the text parameter input in query code?</p>
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<p>That depends on whether your data source supports any kind of substring indexing.</p>
<hr>
<p>Side note: there appears to be a typo in the final line of your query. I believe it should be:</p>
<pre><code class="lang-sql">SELECT run_id,
model_name,
username,
FROM test.table
WHERE (model_name LIKE SUBSTRING_INDEX('{{model_one}}', '/', 1)
AND (run_id LIKE '%' + SUBSTRING_INDEX('{{model_one}}', '/', 1) + '%'))
</code></pre>
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<p>Thanks for explaining. Data source is presto db. So I was able to resolve it by using split_part.<br>
<a href="https://prestodb.io/docs/current/functions/string.html" class="onebox" target="_blank" rel="noopener nofollow ugc">https://prestodb.io/docs/current/functions/string.html</a></p>
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