[Mysql Driver] Prepared Statements vs. Sprintf give me different types.

blov · · 200 次点击    
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<p>I have a database with lots of null values. Because of this I&#39;m using the technique of passing them all as string pointers, as described in the docs. <a href="http://pastebin.com/S1y0RT8g" rel="nofollow">SAMPLE CODE</a></p> <p>I wrote some queries and used fmt.Sprintf to build some queries. After some refactoring to substitute that code for prepared statements, my types all became their actual database types and I&#39;m getting error messages like: &#34;type is int64, not string&#34;.</p> <p>I already went back to using Sprintf. It&#39;s a small project and my vars are not user input, so not really a problem. But I&#39;d really like to know what&#39;s going on, because I&#39;m investing in becoming a Go dev in the long run.</p> <hr/>**评论:**<br/><br/>Ploobers: <pre><p>Show us your actual query. Prepared statements work great, so I&#39;m sure you just have a syntax error.</p></pre>palitones: <pre><p>Here you go. Thanks for the help!</p> <p><a href="http://pastebin.com/143AJJW1" rel="nofollow">http://pastebin.com/143AJJW1</a></p></pre>Ploobers: <pre><p>I&#39;m assuming that in your code, there&#39;s a closing &#34; in the prepared statement version. If not and it somehow compiled, that could cause weird issues.</p> <p>What field type is <code>t2.date_referenced</code>? DATETIME? TIMESTAMP?</p></pre>

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