如何在impala中创建临时表

在Impala中，您可以使用CREATE TABLE语句来创建临时表。创建临时表的语法如下：

CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name[(col_name data_type [COMMENT 'col_comment'] [col_constraint_spec] [,...] )][COMMENT 'table_comment'][PARTITIONED BY (col_name data_type [COMMENT 'col_comment'] [col_constraint_spec] [,...])][CLUSTERED BY (col_name,...) [SORTED BY (col_name [ASC|DESC],...) ] INTO num_buckets BUCKETS ][存储为 file_format][LOCATION 'hdfs_path'][TBLPROPERTIES ('key1'='value1', 'key2'='value2', …)][AS select_statement]

其中其中， CREATE TEMPORARY TABLE 语句创建临时表。临时表会在 Impala 会话结束时自动删除。如果需要在多个Impala会话之间共享临时表，可以使用CREATE TABLE语句创建普通表并在使用后手动删除。