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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.iceberg.expressions</a></div> |
| <h2 title="Class InclusiveMetricsEvaluator" class="title">Class InclusiveMetricsEvaluator</h2> |
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| <pre>public class <span class="typeNameLabel">InclusiveMetricsEvaluator</span> |
| extends java.lang.Object</pre> |
| <div class="block">Evaluates an <a href="Expression.html" title="interface in org.apache.iceberg.expressions"><code>Expression</code></a> on a <a href="../DataFile.html" title="interface in org.apache.iceberg"><code>DataFile</code></a> to test whether rows in the file may match. |
| |
| <p>This evaluation is inclusive: it returns true if a file may match and false if it cannot |
| match. |
| |
| <p>Files are passed to <a href="#eval(org.apache.iceberg.ContentFile)"><code>eval(ContentFile)</code></a>, which returns true if the file may contain |
| matching rows and false if the file cannot contain matching rows. Files may be skipped if and |
| only if the return value of <code>eval</code> is false. |
| |
| <p>Due to the comparison implementation of ORC stats, for float/double columns in ORC files, if |
| the first value in a file is NaN, metrics of this file will report NaN for both upper and lower |
| bound despite that the column could contain non-NaN data. Thus in some scenarios explicitly |
| checks for NaN is necessary in order to not skip files that may contain matching data.</div> |
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| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
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| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.iceberg.Schema,org.apache.iceberg.expressions.Expression)">InclusiveMetricsEvaluator</a></span>​(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a> schema, |
| <a href="Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> unbound)</code></th> |
| <td class="colLast"> </td> |
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| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.iceberg.Schema,org.apache.iceberg.expressions.Expression,boolean)">InclusiveMetricsEvaluator</a></span>​(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a> schema, |
| <a href="Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> unbound, |
| boolean caseSensitive)</code></th> |
| <td class="colLast"> </td> |
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| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#eval(org.apache.iceberg.ContentFile)">eval</a></span>​(<a href="../ContentFile.html" title="interface in org.apache.iceberg">ContentFile</a><?> file)</code></th> |
| <td class="colLast"> |
| <div class="block">Test whether the file may contain records that match the expression.</div> |
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| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
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| <h4>InclusiveMetricsEvaluator</h4> |
| <pre>public InclusiveMetricsEvaluator​(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a> schema, |
| <a href="Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> unbound)</pre> |
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| <h4>InclusiveMetricsEvaluator</h4> |
| <pre>public InclusiveMetricsEvaluator​(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a> schema, |
| <a href="Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> unbound, |
| boolean caseSensitive)</pre> |
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| <h4>eval</h4> |
| <pre class="methodSignature">public boolean eval​(<a href="../ContentFile.html" title="interface in org.apache.iceberg">ContentFile</a><?> file)</pre> |
| <div class="block">Test whether the file may contain records that match the expression.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>file</code> - a data file</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>false if the file cannot contain rows that match the expression, true otherwise.</dd> |
| </dl> |
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