diff --git a/sqle/driver/mysql/session/context.go b/sqle/driver/mysql/session/context.go
index 7254a42aa..1ade61600 100644
--- a/sqle/driver/mysql/session/context.go
+++ b/sqle/driver/mysql/session/context.go
@@ -1094,6 +1094,10 @@ func (c *Context) GetExecutionPlan(sql string) ([]*executor.ExplainRecord, error
 		return ep.Plan, nil
 	}
 
+	if c.e == nil {
+		return nil, nil
+	}
+
 	r, err := c.fetchExecutionPlanWithWarnings(sql)
 	if err != nil {
 		return nil, err
diff --git a/sqle/driver/mysql/util/visitor_test.go b/sqle/driver/mysql/util/visitor_test.go
index 45ad01ad7..63882b8ff 100644
--- a/sqle/driver/mysql/util/visitor_test.go
+++ b/sqle/driver/mysql/util/visitor_test.go
@@ -207,7 +207,7 @@ func TestWhereStmtNotAlwaysTrue(t *testing.T) {
 		t.Run(tt.input, func(t *testing.T) {
 			stmt, err := parser.New().ParseOneStmt(tt.input, "", "")
 			assert.NoError(t, err)
-			got := WhereStmtNotAlwaysTrue(stmt.(*ast.SelectStmt).Where)
+			got := !WhereStmtNotAlwaysTrue(stmt.(*ast.SelectStmt).Where)
 			assert.Equal(t, tt.want, got)
 		})
 	}