enh(query): improve the perf.

source/libs/function/src/builtinsimpl.c

@@ -1555,6 +1555,7 @@ int32_t doMinMaxHelper(SqlFunctionCtx* pCtx, int32_t isMinFunc) {
         pBuf->assign = true;
       } else {
         // ignore the equivalent data value
+#if 0
         if ((*val) == pData[i]) {
           continue;
         }
@@ -1565,6 +1566,23 @@ int32_t doMinMaxHelper(SqlFunctionCtx* pCtx, int32_t isMinFunc) {
             updateTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos);
           }
         }
+#endif
+        // NOTE: An faster version to avoid one additional comparison with FPU.
+        if (isMinFunc) {  // min
+          if (*val < pData[i]) {
+            *val = pData[i];
+            if (pCtx->subsidiaries.num > 0) {
+              updateTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos);
+            }
+          }
+        } else {  // max
+          if (*val > pData[i]) {
+            *val = pData[i];
+            if (pCtx->subsidiaries.num > 0) {
+              updateTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos);
+            }
+          }
+        }
       }
 
       numOfElems += 1;