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<p style="margin: 10px 0 0 0">A workaround for the PATINDEX issue appears to register a custom function in the dialect as follows:</p>
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<span class="error">Unable to find source-code formatter for language: mydialect.java.</span> Available languages are: actionscript, html, java, javascript, none, sql, xhtml, xml
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<pre style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">public</span> class MyDialect <span class="code-keyword" style="color: #000091">extends</span> SQLServer2008Dialect {
<span class="code-keyword" style="color: #000091">public</span> MyDialect() {
registerFunction( <span class="code-quote" style="color: #009100">"indexof"</span>, <span class="code-keyword" style="color: #000091">new</span> SQLFunctionTemplate( StandardBasicTypes.LONG, <span class="code-quote" style="color: #009100">"patindex(?1, ?2)"</span> ) );
}
}
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<p style="margin: 10px 0 0 0">Then change the query order by as:</p>
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
query.orderBy(cb.desc(cb.substring(orderPath, cb.function(<span class="code-quote" style="color: #009100">"INDEXOF"</span>, <span class="code-object" style="color: #910091">Integer</span>.class, cb.literal(<span class="code-quote" style="color: #009100">"%[0-9]%"</span>), orderPath), cb.length(orderPath))));
</pre>
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<p style="margin: 10px 0 0 0">This workaround appears to solve the SQL error and makes sure that all parameters are rendered in the substring() call. This however still forces SQL Server users of the API to provide a length parameter to the substring() call still.</p>
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