88 lines
5.2 KiB
HTML
88 lines
5.2 KiB
HTML
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<title>CPI4345 - Temporary distributed result file &3 built for query</title>
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<body id="cpi4345"><a name="cpi4345"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">CPI4345 - Temporary distributed result file &3 built for query</h1>
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<div>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th colspan="2" align="center" valign="middle" id="d0e16">CPI4345</th>
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</tr>
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</thead>
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<tbody><tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Message Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e16 ">Temporary distributed result file &3 built for query.</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Cause Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e16 ">Temporary distributed result file &3 was created to contain the
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intermediate results of the query for reason code &6. The reason codes
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and their meanings follow: <ol><li>Data from member &2 of &7 &8 in library &1 was directed
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to other nodes.</li>
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<li>Data from member &2 of &7 &8 in library &1 was broadcast
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to all nodes.</li>
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<li>Either the query contains grouping fields (GROUP BY) that do not match
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the partitioning keys of the distributed file or the query contains grouping
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criteria but no grouping fields were specified or the query contains a subquery.</li>
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<li>Query contains join criteria over a distributed file and the query was
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processed in multiple steps.</li>
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</ol>
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A library and member name of *N indicates the data comes from a query
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temporary distributed file. <p></p>
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File &3 was built on nodes: &9.
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<p></p>
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It was built using partitioning keys: &10. <p></p>
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A
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partitioning key of *N indicates no partitioning keys were used when building
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the temporary distributed result file.</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Recovery Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e16 ">If the reason code is: <ol><li>Generally, a file is directed when the join fields do not match the partitioning
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keys of the distributed file. When a file is directed, the query is processed
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in multiple steps and processed in parallel. A temporary distributed result
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file is required to contain the intermediate results for each step.</li>
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<li>Generally, a file is broadcast when join fields do not match the partitioning
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keys of either file being joined or the join operator is not an equal operator.
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When a file is broadcast the query is processed in multiple steps and processed
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in parallel. A temporary distributed result file is required to contain the
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intermediate results for each step.</li>
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<li>Better performance may be achieved if grouping fields are specified that
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match the partitioning keys.</li>
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<li>Because the query is processed in multiple steps, a temporary distributed
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result file is required to contain the intermediate results for each step.
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See preceding message CPI4342 to determine which files were joined together.</li>
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</ol>
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For more information about processing of distributed files, refer to
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the <a href="../ddp/rbal1kickoff.htm">Distributed
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Database Programming</a>,</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="pimes.htm" title="You can evaluate the structure and performance of the given SQL statements in a program using informational messages put in the job log by the database manager.">Query optimization performance information messages</a></div>
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</div>
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</div>
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</body>
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</html>
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