CREATE DATABASE IF NOT EXISTS ${dataBaseName} CREATE STABLE IF NOT EXISTS ${dataBaseName}.${superTableName} ${item.fieldName} TIMESTAMP TINYINT SMALLINT INT BIGINT FLOAT DOUBLE BINARY NCHAR BOOL JSON ( ${item.dataLength} ) TAGS ${item.fieldName} TIMESTAMP TINYINT SMALLINT INT BIGINT FLOAT DOUBLE BINARY NCHAR BOOL JSON ( ${item.dataLength} ) create table if not exists #{dataBaseName}.#{tableName} using #{dataBaseName}.#{superTableName} tags #{item.fieldValue} insert into #{dataBaseName}.#{tableName} #{item.fieldName} using #{dataBaseName}.#{superTableName} tags #{item.fieldValue} values #{item.fieldValue} select * from #{dataBaseName}.#{tableName} where ${fieldName} between #{startTime} and #{endTime} ALTER STABLE ${dataBaseName}.${superTableName} ADD COLUMN #{field.fieldName} TIMESTAMP TINYINT SMALLINT INT BIGINT FLOAT DOUBLE BINARY NCHAR BOOL JSON ( #{field.dataLength} ) ALTER STABLE ${dataBaseName}.${superTableName} DROP COLUMN #{field.fieldName} ALTER STABLE #{superTableName} ADD TAG #{fieldDO.fieldName} timestamp tinyint smallint int bigint float double binary nchar bool json ( #{fieldDO.dataLength} ) ALTER STABLE #{superTableName} DROP TAG #{fieldsVo.fieldName} SELECT count(0) AS count FROM #{dataBaseName}.#{tableName} WHERE ${fieldName} BETWEEN #{startTime} AND #{endTime} SHOW ${dataBaseName}.STABLES LIKE '${superTableName}' select last(time), * from #{tableName} where device_id = #{deviceId} select last(*) from #{dataBaseName}.#{stableName} group by ${tagsName} SELECT #{fieldName}, ts FROM #{dataBaseName}.#{tableName} WHERE ts BETWEEN #{startTime} AND #{endTime} LIMIT #{num} SELECT #{fieldName}, ts FROM #{dataBaseName}.#{tableName} LIMIT #{num} SELECT #{aggregate}(${fieldName}) FROM #{dataBaseName}.#{tableName} WHERE ts BETWEEN #{startTime} AND #{endTime} interval (${interval}) LIMIT #{num} DESCRIBE ${dataBaseName}.${superTableName}