hll_empty
Description
Generates an empty HLL column to supplement the default values when inserting or loading data.
Syntax
HLL_EMPTY()
Return value
Returns an empty HLL.
Examples
Supplement the default values when inserting data.
insert into hllDemo(k1,v1) values(10,hll_empty());
Supplement the default values when loading data.
curl --location-trusted -u <username>:<password> \
-H "columns: temp1, temp2, col1=hll_hash(temp1), col2=hll_empty()" \
-T example7.csv -XPUT \
http://<fe_host>:<fe_http_port>/api/test_db/table7/_stream_load