Merge pull request #18588 from taosdata/fix/TD-20829

fix: fix index filter crash 

source/libs/index/src/indexFilter.c

@@ -231,8 +231,10 @@ static int32_t sifInitParam(SNode *node, SIFParam *param, SIFCtx *ctx) {
       SIF_ERR_RET(sifGetValueFromNode(node, &param->condValue));
       param->colId = -1;
       param->colValType = (uint8_t)(vn->node.resType.type);
-      if (strlen(vn->literal) <= sizeof(param->colName)) {
+      if (vn->literal != NULL && strlen(vn->literal) <= sizeof(param->colName)) {
         memcpy(param->colName, vn->literal, strlen(vn->literal));
+      } else {
+        param->status = SFLT_NOT_INDEX;
       }
       break;
     }

tests/system-test/0-others/compatibility.py

@@ -84,6 +84,7 @@ class TDTestCase:
 		stb = f"{dbname}.meters"
 		self.installTaosd(bPath,cPath)
 		os.system("echo 'debugFlag 143' > /etc/taos/taos.cfg ")
+		os.system("echo ' supportVnodes 256' > /etc/taos/taos.cfg ")
 		tableNumbers=100
 		recordNumbers1=100
 		recordNumbers2=1000