From 8515ea864089579610d96d7febe76f5d1ac88cde Mon Sep 17 00:00:00 2001
From: chris-sun-star <hongxin.sun.vip@gmail.com>
Date: Tue, 3 Feb 2026 17:20:14 +0800
Subject: [PATCH] use the latest sql plan to get the cost

---
 internal/sql-analyzer/const/sql/sql_plan.go   | 60 ++++++-------------
 .../sql-analyzer/generated/swagger/docs.go    |  3 +-
 .../generated/swagger/swagger.json            |  3 +-
 .../generated/swagger/swagger.yaml            |  3 +-
 4 files changed, 25 insertions(+), 44 deletions(-)

diff --git a/internal/sql-analyzer/const/sql/sql_plan.go b/internal/sql-analyzer/const/sql/sql_plan.go
index bb525487f..db7016d67 100644
--- a/internal/sql-analyzer/const/sql/sql_plan.go
+++ b/internal/sql-analyzer/const/sql/sql_plan.go
@@ -83,32 +83,6 @@ const (
 	CheckPlanExistence = `SELECT COUNT(*) FROM sql_plan WHERE TENANT_ID = ? AND SVR_IP = ? AND SVR_PORT = ? AND PLAN_ID = ?`
 	GetPlanStats       = `
 		WITH PlanAgg AS (
-			SELECT
-				TENANT_ID,
-				SVR_IP,
-				SVR_PORT,
-				PLAN_ID,
-				PLAN_HASH,
-				MAX(GMT_CREATE) as GMT_CREATE,
-				SUM(IO_COST) as IO_COST,
-				SUM(CPU_COST) as CPU_COST,
-				SUM(COST) as COST,
-				SUM(REAL_COST) as REAL_COST
-			FROM sql_plan
-			WHERE SQL_ID = ?
-			GROUP BY TENANT_ID, SVR_IP, SVR_PORT, PLAN_ID, PLAN_HASH
-		),
-		PlanStats AS (
-			SELECT
-				PLAN_HASH,
-				CAST(AVG(IO_COST) AS BIGINT) as IO_COST,
-				CAST(AVG(CPU_COST) AS BIGINT) as CPU_COST,
-				CAST(AVG(COST) AS BIGINT) as COST,
-				CAST(AVG(REAL_COST) AS BIGINT) as REAL_COST
-			FROM PlanAgg
-			GROUP BY PLAN_HASH
-		),
-		LatestPlan AS (
 			SELECT
 				TENANT_ID,
 				SVR_IP,
@@ -116,23 +90,27 @@ const (
 				PLAN_ID,
 				PLAN_HASH,
 				GMT_CREATE,
-				ROW_NUMBER() OVER (PARTITION BY PLAN_HASH ORDER BY GMT_CREATE DESC, PLAN_ID DESC) as rn
-			FROM PlanAgg
+				IO_COST,
+				CPU_COST,
+				COST,
+				REAL_COST,
+				ROW_NUMBER() OVER (PARTITION BY TENANT_ID, SVR_IP, SVR_PORT, PLAN_HASH ORDER BY GMT_CREATE DESC, PLAN_ID DESC) as rn
+			FROM sql_plan
+			WHERE SQL_ID = ? AND ID = 0
 		)
 		SELECT
-			lp.TENANT_ID,
-			lp.SVR_IP,
-			lp.SVR_PORT,
-			lp.PLAN_ID,
-			lp.PLAN_HASH,
-			lp.GMT_CREATE,
-			ps.IO_COST,
-			ps.CPU_COST,
-			ps.COST,
-			ps.REAL_COST
-		FROM LatestPlan lp
-		JOIN PlanStats ps ON lp.PLAN_HASH = ps.PLAN_HASH
-		WHERE lp.rn = 1
+			TENANT_ID,
+			SVR_IP,
+			SVR_PORT,
+			PLAN_ID,
+			PLAN_HASH,
+			GMT_CREATE,
+			IO_COST,
+			CPU_COST,
+			COST,
+			REAL_COST
+		FROM PlanAgg
+		WHERE rn = 1
 	`
 	GetTableInfo = `
 		SELECT 
diff --git a/internal/sql-analyzer/generated/swagger/docs.go b/internal/sql-analyzer/generated/swagger/docs.go
index 475eeb409..5722b48c2 100644
--- a/internal/sql-analyzer/generated/swagger/docs.go
+++ b/internal/sql-analyzer/generated/swagger/docs.go
@@ -333,7 +333,8 @@ const docTemplate = `{
                     "type": "integer"
                 },
                 "planHash": {
-                    "type": "integer"
+                    "type": "string",
+                    "example": "0"
                 },
                 "planId": {
                     "type": "integer"
diff --git a/internal/sql-analyzer/generated/swagger/swagger.json b/internal/sql-analyzer/generated/swagger/swagger.json
index ecb1993cd..2561bae13 100644
--- a/internal/sql-analyzer/generated/swagger/swagger.json
+++ b/internal/sql-analyzer/generated/swagger/swagger.json
@@ -322,7 +322,8 @@
                     "type": "integer"
                 },
                 "planHash": {
-                    "type": "integer"
+                    "type": "string",
+                    "example": "0"
                 },
                 "planId": {
                     "type": "integer"
diff --git a/internal/sql-analyzer/generated/swagger/swagger.yaml b/internal/sql-analyzer/generated/swagger/swagger.yaml
index 484218797..8e0494917 100644
--- a/internal/sql-analyzer/generated/swagger/swagger.yaml
+++ b/internal/sql-analyzer/generated/swagger/swagger.yaml
@@ -62,7 +62,8 @@ definitions:
       ioCost:
         type: integer
       planHash:
-        type: integer
+        example: "0"
+        type: string
       planId:
         type: integer
       realCost: