Yu Xu created CALCITE-6943:
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Summary: Hive not support approx_count_distinct function
Key: CALCITE-6943
URL: https://issues.apache.org/jira/browse/CALCITE-6943
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.39.0
Reporter: Yu Xu
Assignee: Yu Xu
Fix For: 1.40.0
Hive had not supported approx_count_distinct or apporx_count function yet, so
we should keep the default way convert approx_count_distinct to count distinct.
*test from Hive 1.x to Hive 4.x in beeline:*
select approx_count_distinct(agg) from test.db01;
*>FAILED: SemanticException [Error 10011]: Invalid function
approx_count_distinct*
select approx_distinct(agg) from test.db01；
*>FAILED: SemanticException [Error 10011]: Invalid function approx_distinct*
we can refer to:
[https://hive.apache.org/docs/latest/hive-udfs_282102277/#mathematical-functions]
currently not support such function.
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