From e0834b2f462fb5f6ec4130c5e5e30438cc9a096b Mon Sep 17 00:00:00 2001
From: zclllyybb <zhaochangle@selectdb.com>
Date: Fri, 15 Sep 2023 10:17:17 +0800
Subject: [PATCH] [chore](explain) add annotation in explain string whether
 nereids is ON #24394

---
 .../trees/plans/commands/ExplainCommand.java       |  2 +-
 .../java/org/apache/doris/qe/StmtExecutor.java     | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/ExplainCommand.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/ExplainCommand.java
index 9e02b8b4e9..58e05855c0 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/ExplainCommand.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/ExplainCommand.java
@@ -80,7 +80,7 @@ public class ExplainCommand extends Command implements NoForward {
         planner.plan(logicalPlanAdapter, ctx.getSessionVariable().toThrift());
         executor.setPlanner(planner);
         executor.checkBlockRules();
-        executor.handleExplainStmt(planner.getExplainString(new ExplainOptions(level)));
+        executor.handleExplainStmt(planner.getExplainString(new ExplainOptions(level)), true);
     }
 
     @Override
diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/StmtExecutor.java b/fe/fe-core/src/main/java/org/apache/doris/qe/StmtExecutor.java
index 5100e2d436..0f7ff23972 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/StmtExecutor.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/StmtExecutor.java
@@ -1337,7 +1337,7 @@ public class StmtExecutor {
 
         if (queryStmt.isExplain()) {
             String explainString = planner.getExplainString(queryStmt.getExplainOptions());
-            handleExplainStmt(explainString);
+            handleExplainStmt(explainString, false);
             return;
         }
 
@@ -1737,7 +1737,7 @@ public class StmtExecutor {
             ExplainOptions explainOptions = insertStmt.getQueryStmt().getExplainOptions();
             insertStmt.setIsExplain(explainOptions);
             String explainString = planner.getExplainString(explainOptions);
-            handleExplainStmt(explainString);
+            handleExplainStmt(explainString, false);
             return;
         }
 
@@ -2198,11 +2198,11 @@ public class StmtExecutor {
     private void handleLockTablesStmt() {
     }
 
-    public void handleExplainStmt(String result) throws IOException {
-        ShowResultSetMetaData metaData =
-                ShowResultSetMetaData.builder()
-                        .addColumn(new Column("Explain String", ScalarType.createVarchar(20)))
-                        .build();
+    public void handleExplainStmt(String result, boolean isNereids) throws IOException {
+        ShowResultSetMetaData metaData = ShowResultSetMetaData.builder()
+                .addColumn(new Column("Explain String" + (isNereids ? "(Nereids Planner)" : "(Old Planner)"),
+                        ScalarType.createVarchar(20)))
+                .build();
         sendMetaData(metaData);
 
         // Send result set.