原文地址: https://www.elastic.co/guide/en/elasticsearch/reference/7.7/sql-syntax-show-columns.html, 原文档版权归 www.elastic.co 所有
IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
SHOW COLUMNSedit
Synopsis:
See index patterns for more information about patterns.
Description: List the columns in table and their data type (and other attributes).
SHOW COLUMNS IN emp; column | type | mapping --------------------+---------------+--------------- birth_date |TIMESTAMP |datetime dep |STRUCT |nested dep.dep_id |VARCHAR |keyword dep.dep_name |VARCHAR |text dep.dep_name.keyword|VARCHAR |keyword dep.from_date |TIMESTAMP |datetime dep.to_date |TIMESTAMP |datetime emp_no |INTEGER |integer first_name |VARCHAR |text first_name.keyword |VARCHAR |keyword gender |VARCHAR |keyword hire_date |TIMESTAMP |datetime languages |TINYINT |byte last_name |VARCHAR |text last_name.keyword |VARCHAR |keyword salary |INTEGER |integer