fix: use MD5 hash to fix aliasname not enough to hold dbname.tbname

include/util/tdef.h

@@ -223,6 +223,7 @@ typedef enum ELogicConditionType {
 #define TSDB_SUBSCRIBE_KEY_LEN   (TSDB_CGROUP_LEN + TSDB_TOPIC_FNAME_LEN + 2)
 #define TSDB_PARTITION_KEY_LEN   (TSDB_SUBSCRIBE_KEY_LEN + 20)
 #define TSDB_COL_NAME_LEN        65
+#define TSDB_COL_FNAME_LEN       (TSDB_TABLE_NAME_LEN + TSDB_COL_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
 #define TSDB_MAX_SAVED_SQL_LEN   TSDB_MAX_COLUMNS * 64
 #define TSDB_MAX_SQL_LEN         TSDB_PAYLOAD_SIZE
 #define TSDB_MAX_SQL_SHOW_LEN    1024

include/util/tutil.h

@@ -79,6 +79,20 @@ static FORCE_INLINE void taosEncryptPass_c(uint8_t *inBuf, size_t len, char *tar
   memcpy(target, buf, TSDB_PASSWORD_LEN);
 }
 
+static FORCE_INLINE int32_t taosCreateMD5Hash(char *pBuf, int32_t len) {
+  T_MD5_CTX ctx;
+  tMD5Init(&ctx);
+  tMD5Update(&ctx, (uint8_t*)pBuf, len);
+  tMD5Final(&ctx);
+  char* p = pBuf;
+  int32_t resLen = 0;
+  for (uint8_t i = 0; i < tListLen(ctx.digest); ++i) {
+    resLen += snprintf(p, 3, "%02x", ctx.digest[i]);
+    p += 2;
+  }
+  return resLen;
+}
+
 static FORCE_INLINE int32_t taosGetTbHashVal(const char *tbname, int32_t tblen, int32_t method, int32_t prefix,
                                              int32_t suffix) {
   if ((prefix == 0 && suffix == 0) || (tblen <= (prefix + suffix)) || (tblen <= -1 * (prefix + suffix)) ||

source/libs/function/src/functionMgt.c

@@ -391,8 +391,10 @@ static int32_t createPartialFunction(const SFunctionNode* pSrcFunc, SFunctionNod
     nodesDestroyList(pParameterList);
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  snprintf((*pPartialFunc)->node.aliasName, sizeof((*pPartialFunc)->node.aliasName), "%s.%p",
-           (*pPartialFunc)->functionName, pSrcFunc);
+  char name[TSDB_FUNC_NAME_LEN + TSDB_NAME_DELIMITER_LEN + sizeof(pSrcFunc) + 1] = {0};
+  int32_t len = snprintf(name, sizeof(name) - 1, "%s.%p", (*pPartialFunc)->functionName, pSrcFunc);
+  taosCreateMD5Hash(name, len);
+  strncpy((*pPartialFunc)->node.aliasName, name, TSDB_COL_NAME_LEN - 1);
   return TSDB_CODE_SUCCESS;
 }
 

source/libs/parser/src/parTranslater.c

@@ -2831,24 +2831,28 @@ static SNode* createMultiResFunc(SFunctionNode* pSrcFunc, SExprNode* pExpr) {
   pFunc->funcId = pSrcFunc->funcId;
   pFunc->funcType = pSrcFunc->funcType;
   strcpy(pFunc->functionName, pSrcFunc->functionName);
-  char    buf[TSDB_FUNC_NAME_LEN + TSDB_TABLE_NAME_LEN + TSDB_COL_NAME_LEN];
+  char    buf[TSDB_FUNC_NAME_LEN + TSDB_TABLE_NAME_LEN + TSDB_COL_NAME_LEN + TSDB_NAME_DELIMITER_LEN + 3] = {0};
   int32_t len = 0;
   if (QUERY_NODE_COLUMN == nodeType(pExpr)) {
     SColumnNode* pCol = (SColumnNode*)pExpr;
     if (tsKeepColumnName) {
       strcpy(pFunc->node.userAlias, pCol->colName);
       strcpy(pFunc->node.aliasName, pCol->colName);
     } else {
-      len = snprintf(buf, sizeof(buf), "%s(%s.%s)", pSrcFunc->functionName, pCol->tableAlias, pCol->colName);
-      strncpy(pFunc->node.aliasName, buf, TMIN(len, sizeof(pFunc->node.aliasName) - 1));
-      len = snprintf(buf, sizeof(buf), "%s(%s)", pSrcFunc->functionName, pCol->colName);
-      strncpy(pFunc->node.userAlias, buf, TMIN(len, sizeof(pFunc->node.userAlias) - 1));
+      len = snprintf(buf, sizeof(buf) - 1, "%s(%s.%s)", pSrcFunc->functionName, pCol->tableAlias, pCol->colName);
+      taosCreateMD5Hash(buf, len);
+      strncpy(pFunc->node.aliasName, buf, TSDB_COL_NAME_LEN  - 1);
+      len = snprintf(buf, sizeof(buf) - 1, "%s(%s)", pSrcFunc->functionName, pCol->colName);
+      taosCreateMD5Hash(buf, len);
+      strncpy(pFunc->node.userAlias, buf, TSDB_COL_NAME_LEN - 1);
     }
   } else {
-    len = snprintf(buf, sizeof(buf), "%s(%s)", pSrcFunc->functionName, pExpr->aliasName);
-    strncpy(pFunc->node.aliasName, buf, TMIN(len, sizeof(pFunc->node.aliasName) - 1));
-    len = snprintf(buf, sizeof(buf), "%s(%s)", pSrcFunc->functionName, pExpr->userAlias);
-    strncpy(pFunc->node.userAlias, buf, TMIN(len, sizeof(pFunc->node.userAlias) - 1));
+    len = snprintf(buf, sizeof(buf) - 1, "%s(%s)", pSrcFunc->functionName, pExpr->aliasName);
+    taosCreateMD5Hash(buf, len);
+    strncpy(pFunc->node.aliasName, buf, TSDB_COL_NAME_LEN - 1);
+    len = snprintf(buf, sizeof(buf) - 1, "%s(%s)", pSrcFunc->functionName, pExpr->userAlias);
+    taosCreateMD5Hash(buf, len);
+    strncpy(pFunc->node.userAlias, buf, TSDB_COL_NAME_LEN - 1);
   }
 
   return (SNode*)pFunc;

source/libs/planner/src/planOptimizer.c

@@ -1610,8 +1610,12 @@ static int32_t partTagsOptRebuildTbanme(SNodeList* pPartKeys) {
 }
 
 // todo refact: just to mask compilation warnings
-static void partTagsSetAlias(char* pAlias, int32_t len, const char* pTableAlias, const char* pColName) {
-  snprintf(pAlias, len, "%s.%s", pTableAlias, pColName);
+static void partTagsSetAlias(char* pAlias, const char* pTableAlias, const char* pColName) {
+  char    name[TSDB_COL_FNAME_LEN + 1] = {0};
+  int32_t len = snprintf(name, TSDB_COL_FNAME_LEN, "%s.%s", pTableAlias, pColName);
+
+  taosCreateMD5Hash(name, len);
+  strcpy(pAlias, name);
 }
 
 static SNode* partTagsCreateWrapperFunc(const char* pFuncName, SNode* pNode) {
@@ -1623,7 +1627,7 @@ static SNode* partTagsCreateWrapperFunc(const char* pFuncName, SNode* pNode) {
   snprintf(pFunc->functionName, sizeof(pFunc->functionName), "%s", pFuncName);
   if (QUERY_NODE_COLUMN == nodeType(pNode) && COLUMN_TYPE_TBNAME != ((SColumnNode*)pNode)->colType) {
     SColumnNode* pCol = (SColumnNode*)pNode;
-    partTagsSetAlias(pFunc->node.aliasName, sizeof(pFunc->node.aliasName), pCol->tableAlias, pCol->colName);
+    partTagsSetAlias(pFunc->node.aliasName, pCol->tableAlias, pCol->colName);
   } else {
     strcpy(pFunc->node.aliasName, ((SExprNode*)pNode)->aliasName);
   }
@@ -2132,7 +2136,10 @@ static SNode* rewriteUniqueOptCreateFirstFunc(SFunctionNode* pSelectValue, SNode
     strcpy(pFunc->node.aliasName, pSelectValue->node.aliasName);
   } else {
     int64_t pointer = (int64_t)pFunc;
-    snprintf(pFunc->node.aliasName, sizeof(pFunc->node.aliasName), "%s.%" PRId64 "", pFunc->functionName, pointer);
+    char name[TSDB_FUNC_NAME_LEN + sizeof(pointer) + TSDB_NAME_DELIMITER_LEN + 1] = {0};
+    int32_t len = snprintf(name, sizeof(name) - 1, "%s.%" PRId64 "", pFunc->functionName, pointer);
+    taosCreateMD5Hash(name, len);
+    strncpy(pFunc->node.aliasName, name, TSDB_COL_NAME_LEN - 1);
   }
   int32_t code = nodesListMakeStrictAppend(&pFunc->pParameterList, nodesCloneNode(pCol));
   if (TSDB_CODE_SUCCESS == code) {

source/libs/planner/src/planPhysiCreater.c

@@ -39,26 +39,32 @@ typedef struct SPhysiPlanContext {
   bool          hasSysScan;
 } SPhysiPlanContext;
 
-static int32_t getSlotKey(SNode* pNode, const char* pStmtName, char* pKey) {
+static int32_t getSlotKey(SNode* pNode, const char* pStmtName, char* pKey, int32_t keyBufSize) {
+  int32_t len = 0;
   if (QUERY_NODE_COLUMN == nodeType(pNode)) {
     SColumnNode* pCol = (SColumnNode*)pNode;
     if (NULL != pStmtName) {
       if ('\0' != pStmtName[0]) {
-        return sprintf(pKey, "%s.%s", pStmtName, pCol->node.aliasName);
+        len = snprintf(pKey, keyBufSize, "%s.%s", pStmtName, pCol->node.aliasName);
+        return taosCreateMD5Hash(pKey, len);
       } else {
-        return sprintf(pKey, "%s", pCol->node.aliasName);
+        return snprintf(pKey, keyBufSize, "%s", pCol->node.aliasName);
       }
     }
     if ('\0' == pCol->tableAlias[0]) {
-      return sprintf(pKey, "%s", pCol->colName);
+      return snprintf(pKey, keyBufSize, "%s", pCol->colName);
     }
-    return sprintf(pKey, "%s.%s", pCol->tableAlias, pCol->colName);
+
+    len = snprintf(pKey, keyBufSize, "%s.%s", pCol->tableAlias, pCol->colName);
+    return taosCreateMD5Hash(pKey, len);
   }
 
   if (NULL != pStmtName && '\0' != pStmtName[0]) {
-    return sprintf(pKey, "%s.%s", pStmtName, ((SExprNode*)pNode)->aliasName);
+    len = snprintf(pKey, keyBufSize, "%s.%s", pStmtName, ((SExprNode*)pNode)->aliasName);
+    return taosCreateMD5Hash(pKey, len);
   }
-  return sprintf(pKey, "%s", ((SExprNode*)pNode)->aliasName);
+
+  return snprintf(pKey, keyBufSize, "%s", ((SExprNode*)pNode)->aliasName);
 }
 
 static SNode* createSlotDesc(SPhysiPlanContext* pCxt, const char* pName, const SNode* pNode, int16_t slotId,
@@ -136,8 +142,8 @@ static int32_t buildDataBlockSlots(SPhysiPlanContext* pCxt, SNodeList* pList, SD
   int16_t slotId = 0;
   SNode*  pNode = NULL;
   FOREACH(pNode, pList) {
-    char name[TSDB_TABLE_NAME_LEN + TSDB_COL_NAME_LEN];
-    getSlotKey(pNode, NULL, name);
+    char name[TSDB_COL_FNAME_LEN + 1] = {0};
+    getSlotKey(pNode, NULL, name, TSDB_COL_FNAME_LEN);
     code = nodesListStrictAppend(pDataBlockDesc->pSlots, createSlotDesc(pCxt, name, pNode, slotId, true, false));
     if (TSDB_CODE_SUCCESS == code) {
       code = putSlotToHash(name, pDataBlockDesc->dataBlockId, slotId, pNode, pHash);
@@ -199,8 +205,8 @@ static int32_t addDataBlockSlotsImpl(SPhysiPlanContext* pCxt, SNodeList* pList,
   SNode*    pNode = NULL;
   FOREACH(pNode, pList) {
     SNode*      pExpr = QUERY_NODE_ORDER_BY_EXPR == nodeType(pNode) ? ((SOrderByExprNode*)pNode)->pExpr : pNode;
-    char        name[TSDB_TABLE_NAME_LEN + TSDB_COL_NAME_LEN] = {0};
-    int32_t     len = getSlotKey(pExpr, pStmtName, name);
+    char        name[TSDB_COL_FNAME_LEN + 1] = {0};
+    int32_t     len = getSlotKey(pExpr, pStmtName, name, TSDB_COL_FNAME_LEN);
     SSlotIndex* pIndex = taosHashGet(pHash, name, len);
     if (NULL == pIndex) {
       code =
@@ -288,8 +294,8 @@ static void dumpSlots(const char* pName, SHashObj* pHash) {
 static EDealRes doSetSlotId(SNode* pNode, void* pContext) {
   if (QUERY_NODE_COLUMN == nodeType(pNode) && 0 != strcmp(((SColumnNode*)pNode)->colName, "*")) {
     SSetSlotIdCxt* pCxt = (SSetSlotIdCxt*)pContext;
-    char           name[TSDB_TABLE_NAME_LEN + TSDB_COL_NAME_LEN];
-    int32_t        len = getSlotKey(pNode, NULL, name);
+    char           name[TSDB_COL_FNAME_LEN + 1] = {0};
+    int32_t        len = getSlotKey(pNode, NULL, name, TSDB_COL_FNAME_LEN);
     SSlotIndex*    pIndex = taosHashGet(pCxt->pLeftHash, name, len);
     if (NULL == pIndex) {
       pIndex = taosHashGet(pCxt->pRightHash, name, len);

source/libs/planner/src/planSpliter.c

@@ -388,7 +388,11 @@ static int32_t stbSplAppendWStart(SNodeList* pFuncs, int32_t* pIndex) {
   }
   strcpy(pWStart->functionName, "_wstart");
   int64_t pointer = (int64_t)pWStart;
-  snprintf(pWStart->node.aliasName, sizeof(pWStart->node.aliasName), "%s.%" PRId64 "", pWStart->functionName, pointer);
+  char name[TSDB_COL_NAME_LEN + sizeof(pointer) + TSDB_NAME_DELIMITER_LEN + 1] = {0};
+  int32_t len = snprintf(name, sizeof(name) - 1, "%s.%" PRId64 "", pWStart->functionName, pointer);
+  taosCreateMD5Hash(name, len);
+  strncpy(pWStart->node.aliasName, name, TSDB_COL_NAME_LEN - 1);
+
   int32_t code = fmGetFuncInfo(pWStart, NULL, 0);
   if (TSDB_CODE_SUCCESS == code) {
     code = nodesListStrictAppend(pFuncs, (SNode*)pWStart);
@@ -414,7 +418,11 @@ static int32_t stbSplAppendWEnd(SWindowLogicNode* pWin, int32_t* pIndex) {
   }
   strcpy(pWEnd->functionName, "_wend");
   int64_t pointer = (int64_t)pWEnd;
-  snprintf(pWEnd->node.aliasName, sizeof(pWEnd->node.aliasName), "%s.%" PRId64 "", pWEnd->functionName, pointer);
+  char name[TSDB_COL_NAME_LEN + sizeof(pointer) + TSDB_NAME_DELIMITER_LEN + 1] = {0};
+  int32_t len = snprintf(name, sizeof(name) - 1, "%s.%" PRId64 "", pWEnd->functionName, pointer);
+  taosCreateMD5Hash(name, len);
+  strncpy(pWEnd->node.aliasName, name, TSDB_COL_NAME_LEN - 1);
+
   int32_t code = fmGetFuncInfo(pWEnd, NULL, 0);
   if (TSDB_CODE_SUCCESS == code) {
     code = nodesListStrictAppend(pWin->pFuncs, (SNode*)pWEnd);

source/libs/planner/src/planUtil.c

@@ -373,5 +373,3 @@ bool isPartTableAgg(SAggLogicNode* pAgg) {
 bool isPartTableWinodw(SWindowLogicNode* pWindow) {
   return stbHasPartTbname(stbSplGetPartKeys((SLogicNode*)nodesListGetNode(pWindow->node.pChildren, 0)));
 }
-
-

tests/parallel_test/cases.task

@@ -137,6 +137,7 @@
 ,,y,system-test,./pytest.sh python3 ./test.py -f 99-TDcase/TS-3404.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 99-TDcase/TS-3581.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 99-TDcase/TS-3311.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 99-TDcase/TS-3821.py
 
 ,,y,system-test,./pytest.sh python3 ./test.py -f 0-others/balance_vgroups_r1.py -N 6
 ,,y,system-test,./pytest.sh python3 ./test.py -f 0-others/taosShell.py

tests/system-test/99-TDcase/TS-3821.py

@@ -0,0 +1,84 @@
+import taos
+import sys
+import time
+import socket
+import os
+import threading
+
+from util.log import *
+from util.sql import *
+from util.cases import *
+from util.dnodes import *
+
+class TDTestCase:
+    hostname = socket.gethostname()
+
+    def init(self, conn, logSql, replicaVar=1):
+        self.replicaVar = int(replicaVar)
+        tdLog.debug(f"start to excute {__file__}")
+        #tdSql.init(conn.cursor())
+        tdSql.init(conn.cursor(), logSql)  # output sql.txt file
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files or "taosd.exe" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root) - len("/build/bin")]
+                    break
+        return buildPath
+
+    def create_tables(self):
+        tdSql.execute(f'''CREATE STABLE `s_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators`
+                          (`ts` TIMESTAMP, `event_time` TIMESTAMP, `wbli` DOUBLE, `vrc` DOUBLE, `csd` DOUBLE,
+                          `oiv` DOUBLE, `tiv` DOUBLE, `flol` DOUBLE, `capacity` DOUBLE, `ispc` NCHAR(50)) TAGS
+                          (`device_identification` NCHAR(64))''')
+        tdSql.execute(f''' CREATE TABLE `t_1000000000001001_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators`
+                           USING `s_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators` (`device_identification`)
+                           TAGS ("1000000000001001")''')
+
+    def insert_data(self):
+        tdLog.debug("start to insert data ............")
+
+        tdSql.execute(f"INSERT INTO `t_1000000000001001_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators` VALUES ('2023-08-06 17:47:35.685','2023-07-24 11:18:20.000', 17.199999999999999, 100.000000000000000, 100.000000000000000, NULL, 112.328999999999994, 132.182899999999989, 12.300000000000001, '符合条件')")
+        tdSql.execute(f"INSERT INTO `t_1000000000001001_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators` VALUES ('2023-08-06 17:47:36.239','2023-07-24 11:18:20.000', 17.199999999999999, 100.000000000000000, 100.000000000000000, NULL, 112.328999999999994, 132.182899999999989, 12.300000000000001, '符合条件')")
+        tdSql.execute(f"INSERT INTO `t_1000000000001001_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators` VALUES ('2023-08-06 17:47:37.290','2023-07-24 11:18:20.000', 17.199999999999999, 100.000000000000000, 100.000000000000000, NULL, 112.328999999999994, 132.182899999999989, 12.300000000000001, '符合条件')")
+        tdSql.execute(f"INSERT INTO `t_1000000000001001_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators` VALUES ('2023-08-06 17:47:38.414','2023-07-24 11:18:20.000', 17.199999999999999, 100.000000000000000, 100.000000000000000, NULL, 112.328999999999994, 132.182899999999989, 12.300000000000001, '符合条件')")
+        tdSql.execute(f"INSERT INTO `t_1000000000001001_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators` VALUES ('2023-08-06 17:47:39.471','2023-07-24 11:18:20.000', 17.199999999999999, 100.000000000000000, 100.000000000000000, NULL, 112.328999999999994, 132.182899999999989, 12.300000000000001, '符合条件')")
+
+        tdLog.debug("insert data ............ [OK]")
+
+    def run(self):
+        tdSql.prepare()
+        self.create_tables()
+        self.insert_data()
+        tdLog.printNoPrefix("======== test TS-3821")
+
+        tdSql.query(f'''select count(*),device_identification from s_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators
+                        where 1=1 and device_identification ='1000000000001001' group by device_identification;''')
+        tdSql.checkRows(1)
+        tdSql.checkCols(2)
+        tdSql.checkData(0, 0, 5)
+        tdSql.checkData(0, 1, "1000000000001001")
+
+        tdSql.query(f'''select count(*),device_identification from t_1000000000001001_e8d66f7af53e4c88866efbc44252a8cd_device_technical_indicators
+                        group by device_identification;''')
+        tdSql.checkRows(1)
+        tdSql.checkCols(2)
+        tdSql.checkData(0, 0, 5)
+        tdSql.checkData(0, 1, "1000000000001001")
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())