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3be0f122a5
These are refugees from doc_prototype. They can be rendered with the DITA Open Toolkit version 2.3.3 by: /tmp/dita-ot-2.3.3/bin/dita \ -i impala.ditamap \ -f html5 \ -o $(mktemp -d) \ -filter impala_html.ditaval Change-Id: I8861e99adc446f659a04463ca78c79200669484f Reviewed-on: http://gerrit.cloudera.org:8080/5014 Reviewed-by: John Russell <jrussell@cloudera.com> Tested-by: John Russell <jrussell@cloudera.com>
66 lines
2.2 KiB
XML
66 lines
2.2 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="delete">
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<title>DELETE Statement (<keyword keyref="impala28"/> or higher only)</title>
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<titlealts audience="PDF"><navtitle>DELETE</navtitle></titlealts>
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<prolog>
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<metadata>
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<data name="Category" value="Impala"/>
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<data name="Category" value="SQL"/>
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<data name="Category" value="Kudu"/>
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<data name="Category" value="ETL"/>
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<data name="Category" value="Ingest"/>
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<data name="Category" value="DML"/>
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<data name="Category" value="Developers"/>
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<data name="Category" value="Data Analysts"/>
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</metadata>
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</prolog>
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<conbody>
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<p>
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<indexterm audience="Cloudera">DELETE statement</indexterm>
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Deletes one or more rows from a Kudu table.
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Although deleting a single row or a range of rows would be inefficient for tables using HDFS
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data files, Kudu is able to perform this operation efficiently. Therefore, this statement
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only works for Impala tables that use the Kudu storage engine.
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</p>
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<p conref="../shared/impala_common.xml#common/syntax_blurb"/>
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<codeblock>
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</codeblock>
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<p rev="kudu">
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Normally, a <codeph>DELETE</codeph> operation for a Kudu table fails if
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some partition key columns are not found, due to their being deleted or changed
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by a concurrent <codeph>UPDATE</codeph> or <codeph>DELETE</codeph> operation.
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Specify <codeph>DELETE IGNORE <varname>rest_of_statement</varname></codeph> to
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make the <codeph>DELETE</codeph> continue in this case. The rows with the nonexistent
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duplicate partition key column values are not removed.
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</p>
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<p conref="../shared/impala_common.xml#common/dml_blurb"/>
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<p conref="../shared/impala_common.xml#common/usage_notes_blurb"/>
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<p conref="../shared/impala_common.xml#common/sync_ddl_blurb"/>
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<note conref="../shared/impala_common.xml#common/compute_stats_next"/>
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<p conref="../shared/impala_common.xml#common/example_blurb"/>
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<codeblock>
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</codeblock>
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<p conref="../shared/impala_common.xml#common/related_info"/>
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<p>
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<xref href="impala_kudu.xml#impala_kudu"/>
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</p>
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</conbody>
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</concept>
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