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| <table style="width: 100%;"><tr><td>refreshTable {SparkR}</td><td style="text-align: right;">R Documentation</td></tr></table> |
| |
| <h2>Invalidates and refreshes all the cached data and metadata of the given table</h2> |
| |
| <h3>Description</h3> |
| |
| <p>Invalidates and refreshes all the cached data and metadata of the given table. For performance |
| reasons, Spark SQL or the external data source library it uses might cache certain metadata about |
| a table, such as the location of blocks. When those change outside of Spark SQL, users should |
| call this function to invalidate the cache. |
| </p> |
| |
| |
| <h3>Usage</h3> |
| |
| <pre><code class='language-R'>refreshTable(tableName) |
| </code></pre> |
| |
| |
| <h3>Arguments</h3> |
| |
| <table> |
| <tr style="vertical-align: top;"><td><code>tableName</code></td> |
| <td> |
| <p>the qualified or unqualified name that designates a table. If no database |
| identifier is provided, it refers to a table in the current database.</p> |
| </td></tr> |
| </table> |
| |
| |
| <h3>Details</h3> |
| |
| <p>If this table is cached as an InMemoryRelation, drop the original cached version and make the |
| new version cached lazily. |
| </p> |
| |
| |
| <h3>Note</h3> |
| |
| <p>since 2.2.0 |
| </p> |
| |
| |
| <h3>Examples</h3> |
| |
| <pre><code class="language-r">## Not run: |
| ##D sparkR.session() |
| ##D refreshTable("myTable") |
| ## End(Not run) |
| </code></pre> |
| |
| |
| <hr /><div style="text-align: center;">[Package <em>SparkR</em> version 3.2.3 <a href="00Index.html">Index</a>]</div> |
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