irenjj commented on code in PR #15077:
URL: https://github.com/apache/datafusion/pull/15077#discussion_r1986078918


##########
datafusion/sqllogictest/test_files/explain_tree.slt:
##########
@@ -519,6 +519,52 @@ physical_plan
 17)│       format: arrow       │
 18)└───────────────────────────┘
 
+# Query for sort.
+query TT
+explain SELECT * FROM table1 ORDER BY string_col;
+----
+logical_plan
+01)Sort: table1.string_col ASC NULLS LAST
+02)--TableScan: table1 projection=[int_col, string_col, bigint_col, date_col]
+physical_plan
+01)┌───────────────────────────┐
+02)│          SortExec         │
+03)│    --------------------   │
+04)│         sort keys:        │
+05)│  [string_col@1 ASC NULLS  │
+06)│            LAST]          │
+07)└─────────────┬─────────────┘
+08)┌─────────────┴─────────────┐
+09)│       DataSourceExec      │
+10)│    --------------------   │
+11)│          files: 1         │
+12)│        format: csv        │
+13)└───────────────────────────┘
+
+# Query for sort with limit.
+query TT
+explain SELECT * FROM table1 ORDER BY string_col LIMIT 1;
+----
+logical_plan
+01)Sort: table1.string_col ASC NULLS LAST, fetch=1
+02)--TableScan: table1 projection=[int_col, string_col, bigint_col, date_col]
+physical_plan
+01)┌───────────────────────────┐
+02)│          SortExec         │
+03)│    --------------------   │
+04)│          limit: 1         │
+05)│                           │
+06)│         sort keys:        │
+07)│  [string_col@1 ASC NULLS  │
+08)│            LAST]          │

Review Comment:
   maybe we can handle it in the next pr, filed: #15098
   



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