[ https://issues.apache.org/jira/browse/FLINK-6516?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
godfrey he reassigned FLINK-6516: --------------------------------- Assignee: godfrey he > using real row count instead of dummy row count when optimizing plan > -------------------------------------------------------------------- > > Key: FLINK-6516 > URL: https://issues.apache.org/jira/browse/FLINK-6516 > Project: Flink > Issue Type: Improvement > Components: Table API & SQL > Reporter: godfrey he > Assignee: godfrey he > > Currently, the statistic of {{TableSourceTable}} is {{UNKNOWN}} mostly, and > the statistic from {{ExternalCatalog}} maybe is null also. Actually, only > each {{TableSource}} knows its statistic exactly, especial for > {{FilterableTableSource}} and {{PartitionableTableSource}}. So we can add > {{getTableStats}} method in {{TableSource}}, and use it in TableSourceScan's > estimateRowCount method to get real row count. -- This message was sent by Atlassian JIRA (v6.3.15#6346)