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| <title>MAX_SPILLED_RESULT_SPOOLING_MEM Query Option</title> |
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| <h1 class="title topictitle1" id="ariaid-title1">MAX_SPILLED_RESULT_SPOOLING_MEM Query Option</h1> |
| |
| |
| |
| <div class="body conbody"> |
| <p class="p">Use the <code class="ph codeph">MAX_SPILLED_RESULT_SPOOLING_MEM</code> query option to |
| set the maximum amount of memory that can be spilled when spooling query |
| results. </p> |
| |
| <p class="p">If the amount of memory exceeds this value when spooling query results, |
| the coordinator fragment will block until the client has consumed enough |
| rows to free up more memory.</p> |
| |
| <p class="p">The <code class="ph codeph">MAX_SPILLED_RESULT_SPOOLING_MEM</code> query option is |
| applicable only when query result spooling is enabled with the |
| <code class="ph codeph">SPOOL_QUERY_RESULTS</code> query option set to |
| <code class="ph codeph">TRUE</code>. </p> |
| |
| <p class="p">The value must be greater than or equal to the value of |
| <code class="ph codeph">MAX_RESULT_SPOOLING_MEM</code>.</p> |
| |
| <p class="p">Setting the option to <code class="ph codeph">0</code> or <code class="ph codeph">-1</code> means the |
| memory is unbounded. </p> |
| |
| <p class="p">Values below <code class="ph codeph">-1</code> are not allowed for this query |
| option.</p> |
| |
| <p class="p"><strong class="ph b">Type:</strong> |
| <code class="ph codeph">INT</code></p> |
| |
| <p class="p"><strong class="ph b">Default:</strong><code class="ph codeph"> 1024 * 1024 * 1024 (1 GB)</code></p> |
| |
| <p class="p"><strong class="ph b">Added in:</strong> |
| <span class="keyword">Impala 3.4</span></p> |
| |
| <p class="p"><strong class="ph b">Related information:</strong> |
| <a class="xref" href="impala_fetch_rows_timeout_ms.html#FETCH_ROWS_TIMEOUT_MS">FETCH_ROWS_TIMEOUT_MS Query Option</a>, |
| <a class="xref" href="impala_max_spilled_result_spooling_mem.html#MAX_SPILLED_RESULT_SPOOLING_MEM">MAX_SPILLED_RESULT_SPOOLING_MEM Query Option</a>, <a class="xref" href="impala_spool_query_results.html#SPOOL_QUERY_RESULTS">SPOOL_QUERY_RESULTS Query Option</a></p> |
| |
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| |
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| <div class="parentlink"><strong>Parent topic:</strong> <a class="link" href="../topics/impala_set.html">SET Statement</a></div> |
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