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| <h2 title="Interface RelReferentialConstraint" class="title">Interface RelReferentialConstraint</h2> |
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| <pre>public interface <span class="typeNameLabel">RelReferentialConstraint</span></pre> |
| <div class="block">Interface for a referential constraint, i.e., Foreign-Key - Unique-Key relationship, |
| between two tables.</div> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/util/mapping/IntPair.html" title="class in org.apache.calcite.util.mapping">IntPair</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rel/RelReferentialConstraint.html#getColumnPairs--">getColumnPairs</a></span>()</code> |
| <div class="block">The (source, target) column ordinals.</div> |
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| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rel/RelReferentialConstraint.html#getNumColumns--">getNumColumns</a></span>()</code> |
| <div class="block">Returns the number of columns in the keys.</div> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/rel/RelReferentialConstraint.html#getSourceQualifiedName--">getSourceQualifiedName</a></span>()</code> |
| <div class="block">The qualified name of the referencing table, e.g.</div> |
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| <div class="block">The qualified name of the referenced table, e.g.</div> |
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| <pre>int getNumColumns()</pre> |
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| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> getSourceQualifiedName()</pre> |
| <div class="block">The qualified name of the referencing table, e.g. DEPT.</div> |
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| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> getTargetQualifiedName()</pre> |
| <div class="block">The qualified name of the referenced table, e.g. EMP.</div> |
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| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/util/mapping/IntPair.html" title="class in org.apache.calcite.util.mapping">IntPair</a>> getColumnPairs()</pre> |
| <div class="block">The (source, target) column ordinals.</div> |
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