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Posted to issues-all@impala.apache.org by "Adam Tamas (Jira)" <ji...@apache.org> on 2020/09/02 13:39:00 UTC
[jira] [Updated] (IMPALA-10133) Implement ds_hll_stringify()
[ https://issues.apache.org/jira/browse/IMPALA-10133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Adam Tamas updated IMPALA-10133:
--------------------------------
Description:
This function receives a string that is a serialized Apache DataSketches
HLL sketch and returns its stringified format.
A stringified format should look like and contains the following data:
{code:java}
(select ds_hll_stringify(ds_hll_sketch(i)) from t;)
+----------------------------------------------------+
| _c0 |
+----------------------------------------------------+
| ### HLL SKETCH SUMMARY:
Log Config K : 12
Hll Target : HLL_4
Current Mode : LIST
Memory : true
LB : 1.0
Estimate : 1.0
UB : 1.000049929250618
OutOfOrder Flag: false
Coupon Count : 1
|
+----------------------------------------------------+
{code}
was:
This function receives a string that is a serialized Apache DataSketches
HLL sketch and returns its stringified format.
A stringified format should look like and contains the following data:
(select ds_hll_stringify(ds_hll_sketch(i)) from t;)
+----------------------------------------------------+
| _c0 |
+----------------------------------------------------+
| ### HLL SKETCH SUMMARY:
Log Config K : 12
Hll Target : HLL_4
Current Mode : LIST
Memory : true
LB : 1.0
Estimate : 1.0
UB : 1.000049929250618
OutOfOrder Flag: false
Coupon Count : 1
|
+----------------------------------------------------+
> Implement ds_hll_stringify()
> ----------------------------
>
> Key: IMPALA-10133
> URL: https://issues.apache.org/jira/browse/IMPALA-10133
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Adam Tamas
> Priority: Major
>
> This function receives a string that is a serialized Apache DataSketches
> HLL sketch and returns its stringified format.
> A stringified format should look like and contains the following data:
> {code:java}
> (select ds_hll_stringify(ds_hll_sketch(i)) from t;)
> +----------------------------------------------------+
> | _c0 |
> +----------------------------------------------------+
> | ### HLL SKETCH SUMMARY:
> Log Config K : 12
> Hll Target : HLL_4
> Current Mode : LIST
> Memory : true
> LB : 1.0
> Estimate : 1.0
> UB : 1.000049929250618
> OutOfOrder Flag: false
> Coupon Count : 1
> |
> +----------------------------------------------------+
> {code}
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