--- layout: global title: ANALYZE TABLE displayTitle: ANALYZE TABLE license: | Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --- ### Description The `ANALYZE TABLE` statement collects statistics about the table to be used by the query optimizer to find a better query execution plan. ### Syntax {% highlight sql %} ANALYZE TABLE table_identifier [ partition_spec ] COMPUTE STATISTICS [ NOSCAN | FOR COLUMNS col [ , ... ] | FOR ALL COLUMNS ] {% endhighlight %} ### Parameters
table_identifier
[ database_name. ] table_name
partition_spec
PARTITION ( partition_col_name [ = partition_col_val ] [ , ... ] )
[ NOSCAN | FOR COLUMNS col [ , ... ] | FOR ALL COLUMNS ]
ANALYZE TABLE
collects the table's number of rows and size in bytes. |
FOR ALL COLUMNS