DESCRIBE product_property_${productKey} CREATE STABLE product_property_${productKey} ${field.field} ${field.type} (${field.length}) TAGS ( device_key NCHAR(50) ) ALTER STABLE product_property_${productKey} ADD COLUMN ${field.field} ${field.type} (${field.length}) ALTER STABLE product_property_${productKey} MODIFY COLUMN ${field.field} ${field.type} (${field.length}) ALTER STABLE product_property_${productKey} DROP COLUMN ${field.field}