Columns can also have tags, those are defined in this table.
Column name | Column type | |
---|---|---|
table_id |
BIGINT |
|
column_id |
BIGINT |
|
begin_snapshot |
BIGINT |
|
end_snapshot |
BIGINT |
|
key |
VARCHAR |
|
value |
VARCHAR |
table_id
refers to atable_id
from theducklake_table
table.column_id
refers to acolumn_id
from theducklake_column
table.begin_snapshot
refers to asnapshot_id
from theducklake_snapshot
table. The tag is valid starting with this snapshot id.end_snapshot
refers to asnapshot_id
from theducklake_snapshot
table. The tag is valid until this snapshot id. Ifend_snapshot
isNULL
, the tag is currently valid.key
is an arbitrary key string. The key can't beNULL
.value
is the arbitrary value string.