Jing Ge created FLINK-27842: ------------------------------- Summary: Rename ndv to granularityNumber Key: FLINK-27842 URL: https://issues.apache.org/jira/browse/FLINK-27842 Project: Flink Issue Type: Improvement Components: Table SQL / API Reporter: Jing Ge
Currently ndv, which stands for "number of distinct values", is used in ColumnStats. It is difficult to understand the meaning and should use a professional naming instead. Suggestion: replace ndv with granularityNumber: The good news is that the method getNdv() did used within Flink which mean the renaming will have very limited impact. ColumnStats { /** number of distinct values. */ @Deprecated private final Long ndv; /**Granularity refers to the level of details used to sort and separate data at column level. Highly granular data is categorized or separated very precisely. For example, the granularity number of gender column is normally 2. In SQL world, it means the number of distinct values. */ private final Long granularityNumber; @Deprecated public Long getNdv() { return ndv; } public Long getGranularityNumber() { return granularityNumber; } } -- This message was sent by Atlassian Jira (v8.20.7#820007)