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Posted to issues@spark.apache.org by "yikf (Jira)" <ji...@apache.org> on 2022/02/18 03:24:00 UTC
[jira] [Created] (SPARK-38247) Unify the output of df.explain and "explain " if plan is command
yikf created SPARK-38247:
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Summary: Unify the output of df.explain and "explain " if plan is command
Key: SPARK-38247
URL: https://issues.apache.org/jira/browse/SPARK-38247
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.2.0
Reporter: yikf
Fix For: 3.3.0
This pr aims to unify the out of df.explain and "explain" sql if plan is a command
* unify the out of df.explain and "explain" sql if plan is a command
* Make the output of explain unambiguous if plan is a command
Lets say have a query like "show tables", we want to explain it
Before this pr:
{code:java}
== Parsed Logical Plan ==
'ShowTables [namespace#62, tableName#63, isTemporary#64]
+- 'UnresolvedNamespace== Analyzed Logical Plan ==
namespace: string, tableName: string, isTemporary: boolean
ShowTablesCommand default, [namespace#62, tableName#63, isTemporary#64], false== Optimized Logical Plan ==
CommandResult [namespace#62, tableName#63, isTemporary#64], Execute ShowTablesCommand, [[default,lt,false], [default,people,false], [default,person,false], [default,rt,false], [default,t,false], [default,t1,false], [default,t10086,false], [default,txtsource,false]]
+- ShowTablesCommand default, [namespace#62, tableName#63, isTemporary#64], false== Physical Plan ==
CommandResult [namespace#62, tableName#63, isTemporary#64]
+- Execute ShowTablesCommand
+- ShowTablesCommand default, [namespace#62, tableName#63, isTemporary#64], false {code}
After this pr:
{code:java}
== Parsed Logical Plan ==
'ShowTables [namespace#0, tableName#1, isTemporary#2]
+- 'UnresolvedNamespace== Analyzed Logical Plan ==
namespace: string, tableName: string, isTemporary: boolean
ShowTables [namespace#0, tableName#1, isTemporary#2]
+- ResolvedNamespace V2SessionCatalog(spark_catalog), [default]== Optimized Logical Plan ==
ShowTables [namespace#0, tableName#1, isTemporary#2]
+- ResolvedNamespace V2SessionCatalog(spark_catalog), [default]== Physical Plan ==
ShowTables [namespace#0, tableName#1, isTemporary#2], V2SessionCatalog(spark_catalog), [default] {code}
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