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<h2><a href="https://docs.jboss.org/author/display/TEIID/ARRAYTABLE">ARRAYTABLE</a></h2>
<h4>Page <b>edited</b> by <a href="https://docs.jboss.org/author/display/~shawkins">Steven Hawkins</a>
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<h4>Changes (1)</h4>
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<tr><td class="diff-unchanged" >ARRAYTABLE is effectively a shortcut for using the [Miscellaneous Functions#array_get|Miscellaneous Functions#array_get] function in a nested table. For example <br> <br></td></tr>
<tr><td class="diff-changed-lines" ><span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">{code:lang=SQL}ARRAYGET(val</span> <span class="diff-added-words"style="background-color: #dfd;">{code:lang=SQL}ARRAYTABLE(val</span> COLUMNS col1 string, col2 integer) AS X{code} <br></td></tr>
<tr><td class="diff-unchanged" > <br>is the same as <br></td></tr>
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<p>The ARRAYTABLE function processes an array input to produce tabular output. The function itself defines what columns it projects. The ARRAYTABLE function is implicitly a nested table and may be correlated to preceding FROM clause entries.</p>
<p>Usage:</p>
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ARRAYTABLE(expression COLUMNS <COLUMN>, ...) AS name
COLUMN := name datatype</pre>
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<p>Parameters</p>
<ul>
<li>expression - the array to process, which should be a java.sql.Array or java array value.<br/>
Syntax Rules:</li>
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<ul>
<li>The columns names must be not contain duplicates.</li>
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<p>Examples</p>
<ul>
<li>As a nested table:
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<pre class="theme: Confluence; brush: sql; gutter: false" style="font-size:12px; font-family: ConfluenceInstalledFont,monospace;">select x.* from (call source.invokeMDX('some query')) r, arraytable(r.tuple COLUMNS first string, second bigdecimal) x</pre>
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<p>ARRAYTABLE is effectively a shortcut for using the <a href="/author/display/TEIID/Miscellaneous+Functions#MiscellaneousFunctions-arrayget">Miscellaneous Functions#array_get</a> function in a nested table. For example</p>
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<pre class="theme: Confluence; brush: sql; gutter: false" style="font-size:12px; font-family: ConfluenceInstalledFont,monospace;">ARRAYTABLE(val COLUMNS col1 string, col2 integer) AS X</pre>
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<p>is the same as</p>
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<pre class="theme: Confluence; brush: sql; gutter: false" style="font-size:12px; font-family: ConfluenceInstalledFont,monospace;">TABLE(SELECT cast(array_get(val, 1) AS string) AS col1, cast(array_get(val, 2) AS integer) AS col2) AS X</pre>
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