4c7525cf2c
* [improvement](show) Support that user can use show data skew statement instead of admin This PR mainly do two things: 1. Support that user can use show data skew statement instead of admin 2. Fix fe ut failed caused by pr [improvement](rewrite) Make RewriteDateLiteralRule to be compatible with mysql #7876 and pr [feature-wip](iceberg) Step1: Support create Iceberg external table #7391 Co-authored-by: caiconghui1 <caiconghui1@jd.com>
51 lines
1.4 KiB
Markdown
51 lines
1.4 KiB
Markdown
---
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{
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"title": "SHOW DATA SKEW",
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"language": "en"
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}
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---
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<!--
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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"License"); you may not use this file except in compliance
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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KIND, either express or implied. See the License for the
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# SHOW DATA SKEW
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## description
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This statement is used to view the data skew of a table or a partition.
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grammar:
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SHOW DATA SKEW FROM [db_name.]tbl_name [PARTITION (p1)];
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Description:
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1. Only one partition must be specified. For non-partitioned tables, the partition name is the same as the table name.
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2. The result will show the data volume of each bucket under the specified partition, and the proportion of the data volume of each bucket in the total data volume.
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## example
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1. View the data skew of the table
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SHOW DATA SKEW FROM db1.test PARTITION(p1);
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## keyword
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SHOW, DATA, SKEW
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