修复慢sql信息收集问题

src/include/executor/exec/execdesc.h

@@ -57,6 +57,7 @@ typedef struct QueryDesc {
     /* This is always set NULL by the core system, but plugins can change it */
     struct Instrumentation* totaltime; /* total time spent in ExecutorRun */
     bool executed;                     /* if the query already executed */
+    bool for_simplify_func;            /* if the query is for simplify function, skip reporting query plan */
 #ifdef ENABLE_MOT
     JitExec::MotJitContext* mot_jit_context;   /* MOT JIT context required for executing LLVM jitted code */
 #endif