Date and Time Type
Contents
Date and Time Type#
OpenMLDB supports date type DATE and timestamp TIMESTAMP.
Each time type has a valid range of values and a NULL value. The NULL value is used when specifying an invalid value that cannot be represented.
Type |
Size (bytes) |
Scope |
Format |
Use |
|---|---|---|---|---|
DATE |
4 |
1900-01-01 ~ |
YYYY-MM-DD |
Date Value |
TIMESTAMP |
8 |
~ INT64_MAX |
online: int64, offline |
Mixed Date and Time Value, Timestamp |
Time Zone Handling#
When a time string is converted to TIMESTAMP, OpenMLDB will convert it to a timestamp in the UTC time zone. However, when TIMESTAMP is converted to a time string, OpenMLDB converts the stored TIMESTAMP to a time string in the current time zone. Note: Currently OpenMLDB only supports one time zone which is UTC/GMT+08:00 time zone. We will support the configuration of TimeZone as soon as possible.