Linhong Liu created SPARK-34199: ----------------------------------- Summary: Block `count(table.*)` to follow ANSI standard and other SQL engines Key: SPARK-34199 URL: https://issues.apache.org/jira/browse/SPARK-34199 Project: Spark Issue Type: Bug Components: SQL Affects Versions: 3.2.0 Reporter: Linhong Liu
In spark, the count(table.*) may cause very weird result, for example: select count(*) from (select 1 as a, null as b) t; output: 1 select count(t.*) from (select 1 as a, null as b) t; output: 0 After checking the ANSI standard, count(*) is always treated as count(1) while count(t.*) is not allowed. What's more, this is also not allowed by common databases, e.g. MySQL, oracle. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org