Data type

Last Updated: Oct 09, 2017

Data types are associated with the columns in the tables. The following types are supported:

Type Description Value Range
Bigint 8-byte signed integer. Please don’t use the minimum value (-9223372036854775808), which is system reserved value. -9223372036854775807 ~ 9223372036854775807
String Support UTF-8 coding. The threshold of single string length is allowed 2MB.
Boolean Boolean type True/False
Double 8-byte, double precision floating number. -1.0 10308 ~ 1.0 10308
Datetime Date type, use UTC+8 as the standard time system. 0001-01-01 00:00:00 ~ 9999-12-31 23:59:59


  • All data types can be NULL.
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