2.4 KiB
Use the influxdb3 show system table
command
to query and output Distinct Value Cache information from the distinct_caches
system table.
{{% code-placeholders "DATABASE_NAME|AUTH_TOKEN" %}}
influxdb3 show system \
--database DATABASE_NAME \
--token AUTH_TOKEN \
table distinct_caches
{{% /code-placeholders %}}
This returns a table similar to the following:
table | name | column_ids | column_names | max_cardinality | max_age_seconds |
---|---|---|---|---|---|
wind_data | wind_distinct | [0, 1, 2] | [country, county, city] | 100000 | 86400 |
weather | weather_distinct | [0] | [location] | 100 | 604800 |
bitcoin | bitcoin_dis | [0, 1] | [code, crypto] | 5000 | 86400 |
home | home_distinct | [0, 1] | [room, wall] | 12000 | 15770000 |
Query specific columns from the distinct_caches system table
Use the --select
option to query specific columns from the distinct_caches
system table. Provide a comma-delimited list of columns to return:
{{% code-placeholders "DATABASE_NAME|AUTH_TOKEN" %}}
influxdb3 show system \
--database DATABASE_NAME \
--token AUTH_TOKEN \
table distinct_caches \
--select name,column_names,max_age_seconds
{{% /code-placeholders %}}
Sort distinct_caches system table output
Use the --order-by
option to sort data from the distinct_caches
system table by
specific columns. Provide a comma-delimited list of columns to sort by:
{{% code-placeholders "DATABASE_NAME|AUTH_TOKEN" %}}
influxdb3 show system \
--database DATABASE_NAME \
--token AUTH_TOKEN \
table distinct_caches \
--order-by max_cardinality,max_age_seconds
{{% /code-placeholders %}}
[!Note] Results are sorted in ascending order based on the provided columns.
In the examples above, replace the following:
- {{% code-placeholder-key %}}
DATABASE_NAME
{{% /code-placeholder-key %}}: the name of the database to query system data from - {{% code-placeholder-key %}}
AUTH_TOKEN
{{% /code-placeholder-key %}}: your {{< product-name >}} {{% show-in "enterprise" %}}admin {{% /show-in %}} authentication token