[ https://issues.apache.org/jira/browse/FLINK-13611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-13611: ----------------------------------- Labels: pull-request-available (was: ) > Introduce analyze statistic utility to generate table & column statistics > ------------------------------------------------------------------------- > > Key: FLINK-13611 > URL: https://issues.apache.org/jira/browse/FLINK-13611 > Project: Flink > Issue Type: New Feature > Components: Table SQL / Planner > Reporter: godfrey he > Priority: Major > Labels: pull-request-available > Fix For: 1.10.0 > > > this issue aims to introduce a utility class to generate table & column > statistics, the main steps include: > 1. generate sql, like > {code:sql} > select approx_count_distinct(a) as ndv, count(1) - count(a) as nullCount, > avg(char_length(a)) as avgLen, max(char_lenght(a)) as maxLen, max(a) as > maxValue, min(a) as minValue, ... from MyTable > {code} > 2. execute the query > 3. convert to the result to {{TableStats}} (maybe the source table is not a > {{ConnectorCatalogTable}}) > 4. convert to {{TableStats}} to {{CatalogTableStatistics}} if needed > This issue does not involve DDL(like {{ANALYZE TABLE XXX}}), however the DDL > could use this utility class once it's supported. -- This message was sent by Atlassian JIRA (v7.6.14#76016)