Merge pull request #6248 from taosdata/feature/TD-3950

[TD-3950]cache last

src/inc/taosdef.h

@@ -33,6 +33,8 @@ extern "C" {
 #endif
 
 #define TSWINDOW_INITIALIZER ((STimeWindow) {INT64_MIN, INT64_MAX})
+#define TSWINDOW_DESC_INITIALIZER ((STimeWindow) {INT64_MAX, INT64_MIN})
+
 #define TSKEY_INITIAL_VAL    INT64_MIN
 
 // Bytes for each type.

src/inc/tsdb.h

@@ -265,6 +265,12 @@ TsdbQueryHandleT *tsdbQueryTables(STsdbRepo *tsdb, STsdbQueryCond *pCond, STable
 TsdbQueryHandleT tsdbQueryLastRow(STsdbRepo *tsdb, STsdbQueryCond *pCond, STableGroupInfo *tableInfo, uint64_t qId,
                                   SMemRef *pRef);
 
+
+TsdbQueryHandleT tsdbQueryCacheLast(STsdbRepo *tsdb, STsdbQueryCond *pCond, STableGroupInfo *groupList, uint64_t qId, SMemRef* pMemRef);
+
+bool isTsdbCacheLastRow(TsdbQueryHandleT* pQueryHandle);
+
+
 /**
  * get the queried table object list
  * @param pHandle

src/query/src/qExecutor.c

@@ -33,6 +33,8 @@
 #define SET_MASTER_SCAN_FLAG(runtime)  ((runtime)->scanFlag = MASTER_SCAN)
 #define SET_REVERSE_SCAN_FLAG(runtime) ((runtime)->scanFlag = REVERSE_SCAN)
 
+#define TSWINDOW_IS_EQUAL(t1, t2) (((t1).skey == (t2).skey) && ((t1).ekey == (t2).ekey))
+
 #define SWITCH_ORDER(n) (((n) = ((n) == TSDB_ORDER_ASC) ? TSDB_ORDER_DESC : TSDB_ORDER_ASC))
 
 #define SDATA_BLOCK_INITIALIZER (SDataBlockInfo) {{0}, 0}
@@ -1979,6 +1981,37 @@ static bool isFirstLastRowQuery(SQueryAttr *pQueryAttr) {
   return false;
 }
 
+static bool isCachedLastQuery(SQueryAttr *pQueryAttr) {
+  for (int32_t i = 0; i < pQueryAttr->numOfOutput; ++i) {
+    int32_t functionID = pQueryAttr->pExpr1[i].base.functionId;
+    if (functionID == TSDB_FUNC_LAST || functionID == TSDB_FUNC_LAST_DST) {
+      continue;
+    }
+
+    return false;
+  }
+
+  if (pQueryAttr->order.order != TSDB_ORDER_DESC || !TSWINDOW_IS_EQUAL(pQueryAttr->window, TSWINDOW_DESC_INITIALIZER)) {
+    return false;
+  }
+
+  if (pQueryAttr->groupbyColumn) {
+    return false;
+  }
+
+  if (pQueryAttr->interval.interval > 0) {
+    return false;
+  }
+
+  if (pQueryAttr->numOfFilterCols > 0 || pQueryAttr->havingNum > 0) {
+    return false;
+  }
+
+  return true;
+}
+
+
+
 /**
  * The following 4 kinds of query are treated as the tags query
  * tagprj, tid_tag query, count(tbname), 'abc' (user defined constant value column) query
@@ -3963,6 +3996,8 @@ static int32_t setupQueryHandle(void* tsdb, SQueryRuntimeEnv* pRuntimeEnv, int64
         }
       }
     }
+  } else if (isCachedLastQuery(pQueryAttr)) {
+    pRuntimeEnv->pQueryHandle = tsdbQueryCacheLast(tsdb, &cond, &pQueryAttr->tableGroupInfo, qId, &pQueryAttr->memRef);
   } else if (pQueryAttr->pointInterpQuery) {
     pRuntimeEnv->pQueryHandle = tsdbQueryRowsInExternalWindow(tsdb, &cond, &pQueryAttr->tableGroupInfo, qId, &pQueryAttr->memRef);
   } else {
@@ -4208,7 +4243,7 @@ static SSDataBlock* doTableScan(void* param, bool *newgroup) {
     }
 
     if (++pTableScanInfo->current >= pTableScanInfo->times) {
-      if (pTableScanInfo->reverseTimes <= 0) {
+      if (pTableScanInfo->reverseTimes <= 0 || isTsdbCacheLastRow(pTableScanInfo->pQueryHandle)) {
         return NULL;
       } else {
         break;

src/tsdb/src/tsdbRead.c

@@ -62,6 +62,7 @@ typedef struct SLoadCompBlockInfo {
   int32_t fileId;
 } SLoadCompBlockInfo;
 
+
 typedef struct STableCheckInfo {
   STableId      tableId;
   TSKEY         lastKey;
@@ -107,7 +108,7 @@ typedef struct STsdbQueryHandle {
   SArray*        pTableCheckInfo;  // SArray<STableCheckInfo>
   int32_t        activeIndex;
   bool           checkFiles;       // check file stage
-  bool           cachelastrow;     // check if last row cached
+  int8_t         cachelastrow;     // check if last row cached
   bool           loadExternalRow;  // load time window external data rows
   bool           currentLoadExternalRows; // current load external rows
   int32_t        loadType;         // block load type
@@ -117,7 +118,6 @@ typedef struct STsdbQueryHandle {
   SFSIter        fileIter;
   SReadH         rhelper;
   STableBlockInfo* pDataBlockInfo;
-
   SDataCols     *pDataCols;        // in order to hold current file data block
   int32_t        allocSize;        // allocated data block size
   SMemRef       *pMemRef;
@@ -138,6 +138,7 @@ typedef struct STableGroupSupporter {
 
 static STimeWindow updateLastrowForEachGroup(STableGroupInfo *groupList);
 static int32_t checkForCachedLastRow(STsdbQueryHandle* pQueryHandle, STableGroupInfo *groupList);
+static int32_t checkForCachedLast(STsdbQueryHandle* pQueryHandle);
 static int32_t tsdbGetCachedLastRow(STable* pTable, SDataRow* pRes, TSKEY* lastKey);
 
 static void    changeQueryHandleForInterpQuery(TsdbQueryHandleT pHandle);
@@ -512,6 +513,8 @@ void tsdbResetQueryHandleForNewTable(TsdbQueryHandleT queryHandle, STsdbQueryCon
   pQueryHandle->next = doFreeColumnInfoData(pQueryHandle->next);
 }
 
+
+
 TsdbQueryHandleT tsdbQueryLastRow(STsdbRepo *tsdb, STsdbQueryCond *pCond, STableGroupInfo *groupList, uint64_t qId, SMemRef* pMemRef) {
   pCond->twindow = updateLastrowForEachGroup(groupList);
 
@@ -528,10 +531,30 @@ TsdbQueryHandleT tsdbQueryLastRow(STsdbRepo *tsdb, STsdbQueryCond *pCond, STable
   }
 
   assert(pCond->order == TSDB_ORDER_ASC && pCond->twindow.skey <= pCond->twindow.ekey);
+  if (pQueryHandle->cachelastrow) {
     pQueryHandle->type = TSDB_QUERY_TYPE_LAST;
+  }
+  
+  return pQueryHandle;
+}
+
+
+TsdbQueryHandleT tsdbQueryCacheLast(STsdbRepo *tsdb, STsdbQueryCond *pCond, STableGroupInfo *groupList, uint64_t qId, SMemRef* pMemRef) {
+  STsdbQueryHandle *pQueryHandle = (STsdbQueryHandle*) tsdbQueryTables(tsdb, pCond, groupList, qId, pMemRef);
+  int32_t code = checkForCachedLast(pQueryHandle);
+  if (code != TSDB_CODE_SUCCESS) { // set the numOfTables to be 0
+    terrno = code;
+    return NULL;
+  }
+
+  if (pQueryHandle->cachelastrow) {
+    pQueryHandle->type = TSDB_QUERY_TYPE_LAST;
+  }
+  
   return pQueryHandle;
 }
 
+
 SArray* tsdbGetQueriedTableList(TsdbQueryHandleT *pHandle) {
   assert(pHandle != NULL);
 
@@ -2460,6 +2483,159 @@ static bool loadCachedLastRow(STsdbQueryHandle* pQueryHandle) {
   return false;
 }
 
+
+
+static bool loadCachedLast(STsdbQueryHandle* pQueryHandle) {
+  // the last row is cached in buffer, return it directly.
+  // here note that the pQueryHandle->window must be the TS_INITIALIZER
+  int32_t tgNumOfCols = (int32_t)QH_GET_NUM_OF_COLS(pQueryHandle);
+  size_t  numOfTables = taosArrayGetSize(pQueryHandle->pTableCheckInfo);
+  int32_t numOfRows = 0;
+  assert(numOfTables > 0 && tgNumOfCols > 0);
+  SQueryFilePos* cur = &pQueryHandle->cur;
+  TSKEY priKey = TSKEY_INITIAL_VAL;
+  int32_t priIdx = -1;
+  SColumnInfoData* pColInfo = NULL;
+
+  while (++pQueryHandle->activeIndex < numOfTables) {
+    STableCheckInfo* pCheckInfo = taosArrayGet(pQueryHandle->pTableCheckInfo, pQueryHandle->activeIndex);
+    STable* pTable = pCheckInfo->pTableObj;  
+    char* pData = NULL;
+
+    int32_t numOfCols = pTable->maxColNum;
+    
+    if (pTable->lastCols == NULL || pTable->maxColNum <= 0) {
+      tsdbWarn("no last cached for table, uid:%" PRIu64 ",tid:%d", pTable->tableId.uid, pTable->tableId.tid);
+      continue;
+    }
+    
+    int32_t i = 0, j = 0;
+    while(i < tgNumOfCols && j < numOfCols) {
+      pColInfo = taosArrayGet(pQueryHandle->pColumns, i);
+      if (pTable->lastCols[j].colId < pColInfo->info.colId) {
+        j++;
+        continue;
+      } else if (pTable->lastCols[j].colId > pColInfo->info.colId) {
+        i++;
+        continue;
+      }
+    
+      pData = (char*)pColInfo->pData + numOfRows * pColInfo->info.bytes;
+    
+      if (pTable->lastCols[j].bytes > 0) {        
+        void* value = pTable->lastCols[j].pData;
+        switch (pColInfo->info.type) {
+          case TSDB_DATA_TYPE_BINARY:
+          case TSDB_DATA_TYPE_NCHAR:
+            memcpy(pData, value, varDataTLen(value));
+            break;
+          case TSDB_DATA_TYPE_NULL:
+          case TSDB_DATA_TYPE_BOOL:
+          case TSDB_DATA_TYPE_TINYINT:
+          case TSDB_DATA_TYPE_UTINYINT:  
+            *(uint8_t *)pData = *(uint8_t *)value;
+            break;
+          case TSDB_DATA_TYPE_SMALLINT:
+          case TSDB_DATA_TYPE_USMALLINT:
+            *(uint16_t *)pData = *(uint16_t *)value;
+            break;
+          case TSDB_DATA_TYPE_INT:
+          case TSDB_DATA_TYPE_UINT:
+            *(uint32_t *)pData = *(uint32_t *)value;
+            break;
+          case TSDB_DATA_TYPE_BIGINT:
+          case TSDB_DATA_TYPE_UBIGINT:
+            *(uint64_t *)pData = *(uint64_t *)value;
+            break;
+          case TSDB_DATA_TYPE_FLOAT:
+            SET_FLOAT_PTR(pData, value);
+            break;
+          case TSDB_DATA_TYPE_DOUBLE:
+            SET_DOUBLE_PTR(pData, value);
+            break;
+          case TSDB_DATA_TYPE_TIMESTAMP:
+            if (pColInfo->info.colId == PRIMARYKEY_TIMESTAMP_COL_INDEX) {
+              priKey = tdGetKey(*(TKEY *)value);
+              priIdx = i;
+
+              i++;
+              j++;
+              continue;
+            } else {
+              *(TSKEY *)pData = *(TSKEY *)value;
+            }
+            break;
+          default:
+            memcpy(pData, value, pColInfo->info.bytes);
+        }
+    
+        for (int32_t n = 0; n < tgNumOfCols; ++n) {
+          if (n == i) {
+            continue;
+          }
+
+          pColInfo = taosArrayGet(pQueryHandle->pColumns, n);
+          pData = (char*)pColInfo->pData + numOfRows * pColInfo->info.bytes;;
+
+          if (pColInfo->info.colId == PRIMARYKEY_TIMESTAMP_COL_INDEX) {
+            *(TSKEY *)pData = pTable->lastCols[j].ts;
+            continue;
+          }
+          
+          if (pColInfo->info.type == TSDB_DATA_TYPE_BINARY || pColInfo->info.type == TSDB_DATA_TYPE_NCHAR) {
+            setVardataNull(pData, pColInfo->info.type);
+          } else {
+            setNull(pData, pColInfo->info.type, pColInfo->info.bytes);
+          }
+        }
+
+        numOfRows++;
+        assert(numOfRows < pQueryHandle->outputCapacity);
+      } 
+    
+      i++;
+      j++;
+    }
+
+    // leave the real ts column as the last row, because last function only (not stable) use the last row as res
+    if (priKey != TSKEY_INITIAL_VAL) {
+      pColInfo = taosArrayGet(pQueryHandle->pColumns, priIdx);
+      pData = (char*)pColInfo->pData + numOfRows * pColInfo->info.bytes;
+    
+      *(TSKEY *)pData = priKey;
+
+      for (int32_t n = 0; n < tgNumOfCols; ++n) {
+        if (n == priIdx) {
+          continue;
+        }
+      
+        pColInfo = taosArrayGet(pQueryHandle->pColumns, n);
+        pData = (char*)pColInfo->pData + numOfRows * pColInfo->info.bytes;;
+      
+        assert (pColInfo->info.colId != PRIMARYKEY_TIMESTAMP_COL_INDEX);
+        
+        if (pColInfo->info.type == TSDB_DATA_TYPE_BINARY || pColInfo->info.type == TSDB_DATA_TYPE_NCHAR) {
+          setVardataNull(pData, pColInfo->info.type);
+        } else {
+          setNull(pData, pColInfo->info.type, pColInfo->info.bytes);
+        }
+      }
+
+      numOfRows++;
+    }
+    
+    if (numOfRows > 0) {
+      cur->rows     = numOfRows;
+      cur->mixBlock = true;
+      
+      return true;
+    }    
+  }
+
+  return false;
+}
+
+
 static bool loadDataBlockFromTableSeq(STsdbQueryHandle* pQueryHandle) {
   size_t numOfTables = taosArrayGetSize(pQueryHandle->pTableCheckInfo);
   assert(numOfTables > 0);
@@ -2496,8 +2672,12 @@ bool tsdbNextDataBlock(TsdbQueryHandleT pHandle) {
   int64_t stime = taosGetTimestampUs();
   int64_t elapsedTime = stime;
 
-  if (pQueryHandle->type == TSDB_QUERY_TYPE_LAST && pQueryHandle->cachelastrow) {
+  if (pQueryHandle->type == TSDB_QUERY_TYPE_LAST) {
+    if (pQueryHandle->cachelastrow == 1) {
       return loadCachedLastRow(pQueryHandle);
+    } else if (pQueryHandle->cachelastrow == 2) {
+      return loadCachedLast(pQueryHandle);
+    }
   }
 
   if (pQueryHandle->loadType == BLOCK_LOAD_TABLE_SEQ_ORDER) {
@@ -2695,6 +2875,10 @@ int32_t tsdbGetCachedLastRow(STable* pTable, SDataRow* pRes, TSKEY* lastKey) {
   return TSDB_CODE_SUCCESS;
 }
 
+bool isTsdbCacheLastRow(TsdbQueryHandleT* pQueryHandle) {
+  return ((STsdbQueryHandle *)pQueryHandle)->cachelastrow > 0;
+}
+
 int32_t checkForCachedLastRow(STsdbQueryHandle* pQueryHandle, STableGroupInfo *groupList) {
   assert(pQueryHandle != NULL && groupList != NULL);
 
@@ -2706,11 +2890,15 @@ int32_t checkForCachedLastRow(STsdbQueryHandle* pQueryHandle, STableGroupInfo *g
 
   STableKeyInfo* pInfo = (STableKeyInfo*)taosArrayGet(group, 0);
 
-  int32_t code = tsdbGetCachedLastRow(pInfo->pTable, &pRow, &key);
+  int32_t code = 0;
+  
+  if (((STable*)pInfo->pTable)->lastRow) {
+    code = tsdbGetCachedLastRow(pInfo->pTable, &pRow, &key);
     if (code != TSDB_CODE_SUCCESS) {
-    pQueryHandle->cachelastrow = false;
+      pQueryHandle->cachelastrow = 0;
     } else {
-    pQueryHandle->cachelastrow = (pRow != NULL);
+      pQueryHandle->cachelastrow = 1;
+    }
   }
 
   // update the tsdb query time range
@@ -2724,6 +2912,26 @@ int32_t checkForCachedLastRow(STsdbQueryHandle* pQueryHandle, STableGroupInfo *g
   return code;
 }
 
+int32_t checkForCachedLast(STsdbQueryHandle* pQueryHandle) {
+  assert(pQueryHandle != NULL);
+
+  int32_t code = 0;
+  
+  if (pQueryHandle->pTsdb && atomic_load_8(&pQueryHandle->pTsdb->hasCachedLastColumn)){
+    pQueryHandle->cachelastrow = 2;
+  }
+
+  // update the tsdb query time range
+  if (pQueryHandle->cachelastrow) {
+    pQueryHandle->window      = TSWINDOW_INITIALIZER;
+    pQueryHandle->checkFiles  = false;
+    pQueryHandle->activeIndex = -1;  // start from -1
+  }
+
+  return code;
+}
+
+
 STimeWindow updateLastrowForEachGroup(STableGroupInfo *groupList) {
   STimeWindow window = {INT64_MAX, INT64_MIN};
 

tests/script/general/parser/last_cache.sim

+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c walLevel -v 0
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
+system sh/exec.sh -n dnode1 -s start
+
+sleep 100
+sql connect
+print ======================== dnode1 start
+
+$db = testdb
+
+sql create database $db cachelast 2
+sql use $db
+
+sql create stable st2 (ts timestamp, f1 int, f2 double, f3 binary(10), f4 timestamp) tags (id int)
+
+sql create table tb1 using st2 tags (1);
+sql create table tb2 using st2 tags (2);
+sql create table tb3 using st2 tags (3);
+sql create table tb4 using st2 tags (4);
+sql create table tb5 using st2 tags (1);
+sql create table tb6 using st2 tags (2);
+sql create table tb7 using st2 tags (3);
+sql create table tb8 using st2 tags (4);
+sql create table tb9 using st2 tags (5);
+sql create table tba using st2 tags (5);
+sql create table tbb using st2 tags (5);
+sql create table tbc using st2 tags (5);
+sql create table tbd using st2 tags (5);
+sql create table tbe using st2 tags (5);
+ 
+sql insert into tb1 values ("2021-05-09 10:10:10", 1, 2.0, '3',  -1000)
+sql insert into tb1 values ("2021-05-10 10:10:11", 4, 5.0, NULL, -2000)
+sql insert into tb1 values ("2021-05-12 10:10:12", 6,NULL, NULL, -3000)
+
+sql insert into tb2 values ("2021-05-09 10:11:13",-1,-2.0,'-3',  -1001)
+sql insert into tb2 values ("2021-05-10 10:11:14",-4,-5.0, NULL, -2001)
+sql insert into tb2 values ("2021-05-11 10:11:15",-6,  -7, '-8', -3001)
+
+sql insert into tb3 values ("2021-05-09 10:12:17", 7, 8.0, '9' , -1002)
+sql insert into tb3 values ("2021-05-09 10:12:17",10,11.0, NULL, -2002)
+sql insert into tb3 values ("2021-05-09 10:12:18",12,NULL, NULL, -3002)
+
+sql insert into tb4 values ("2021-05-09 10:12:19",13,14.0,'15' , -1003)
+sql insert into tb4 values ("2021-05-10 10:12:20",16,17.0, NULL, -2003)
+sql insert into tb4 values ("2021-05-11 10:12:21",18,NULL, NULL, -3003)
+
+sql insert into tb5 values ("2021-05-09 10:12:22",19,  20, '21', -1004)
+sql insert into tb6 values ("2021-05-11 10:12:23",22,  23, NULL, -2004)
+sql insert into tb7 values ("2021-05-10 10:12:24",24,NULL, '25', -3004)
+sql insert into tb8 values ("2021-05-11 10:12:25",26,NULL, '27', -4004)
+
+sql insert into tb9 values ("2021-05-09 10:12:26",28,  29, '30', -1005)
+sql insert into tba values ("2021-05-10 10:12:27",31,  32, NULL, -2005)
+sql insert into tbb values ("2021-05-10 10:12:28",33,NULL, '35', -3005)
+sql insert into tbc values ("2021-05-11 10:12:29",36,  37, NULL, -4005)
+sql insert into tbd values ("2021-05-11 10:12:29",NULL,NULL,NULL,NULL )
+
+run general/parser/last_cache_query.sim
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+
+system sh/exec.sh -n dnode1 -s start
+
+run general/parser/last_cache_query.sim
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+
+
+

tests/script/general/parser/last_cache_query.sim

+
+sleep 100
+sql connect
+
+$db = testdb
+
+sql use $db
+
+print "test tb1"
+
+sql select last(ts) from tb1
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-12 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+
+
+sql select last(f1) from tb1
+if $rows != 1 then
+  return -1
+endi
+if $data00 != 6 then 
+  print $data00
+  return -1
+endi
+
+sql select last(*) from tb1
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-12 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+if $data01 != 6 then 
+  return -1
+endi
+if $data02 != 5.000000000 then 
+  print $data02
+  return -1
+endi
+if $data03 != 3 then 
+  return -1
+endi
+if $data04 != @70-01-01 07:59:57.000@ then 
+  return -1
+endi
+
+
+sql select last(tb1.*,ts,f4) from tb1
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-12 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+if $data01 != 6 then 
+  return -1
+endi
+if $data02 != 5.000000000 then 
+  print $data02
+  return -1
+endi
+if $data03 != 3 then 
+  return -1
+endi
+if $data04 != @70-01-01 07:59:57.000@ then 
+  return -1
+endi
+if $data05 != @21-05-12 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+if $data06 != @70-01-01 07:59:57.000@ then 
+  return -1
+endi
+
+
+
+
+print "test tb2"
+
+sql select last(ts) from tb2
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-11 10:11:15.000@ then 
+  print $data00
+  return -1
+endi
+
+
+sql select last(f1) from tb2
+if $rows != 1 then
+  return -1
+endi
+if $data00 != -6 then 
+  print $data00
+  return -1
+endi
+
+sql select last(*) from tb2
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-11 10:11:15.000@ then 
+  print $data00
+  return -1
+endi
+if $data01 != -6 then 
+  return -1
+endi
+if $data02 != -7.000000000 then 
+  print $data02
+  return -1
+endi
+if $data03 != -8 then 
+  return -1
+endi
+if $data04 != @70-01-01 07:59:56.999@ then 
+  if $data04 != @70-01-01 07:59:57.-01@ then
+    return -1
+  endi
+endi
+
+
+sql select last(tb2.*,ts,f4) from tb2
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-11 10:11:15.000@ then 
+  print $data00
+  return -1
+endi
+if $data01 != -6 then 
+  return -1
+endi
+if $data02 != -7.000000000 then 
+  print $data02
+  return -1
+endi
+if $data03 != -8 then 
+  return -1
+endi
+if $data04 != @70-01-01 07:59:56.999@ then 
+  if $data04 != @70-01-01 07:59:57.-01@ then
+    return -1
+  endi
+endi
+if $data05 != @21-05-11 10:11:15.000@ then 
+  print $data00
+  return -1
+endi
+if $data06 != @70-01-01 07:59:56.999@ then 
+  if $data04 != @70-01-01 07:59:57.-01@ then
+    return -1
+  endi
+endi
+
+
+
+
+
+
+
+print "test tbd"
+sql select last(*) from tbd
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-11 10:12:29.000@ then 
+  print $data00
+  return -1
+endi
+if $data01 != NULL then 
+  return -1
+endi
+if $data02 != NULL then 
+  print $data02
+  return -1
+endi
+if $data03 != NULL then 
+  return -1
+endi
+if $data04 != NULL then 
+  return -1
+endi
+
+
+
+print "test tbe"
+sql select last(*) from tbe
+if $rows != 0 then
+  return -1
+endi
+
+
+
+
+
+print "test stable"
+sql select last(ts) from st2
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-12 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+
+
+sql select last(f1) from st2
+if $rows != 1 then
+  return -1
+endi
+if $data00 != 6 then 
+  print $data00
+  return -1
+endi
+
+sql select last(*) from st2
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-12 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+if $data01 != 6 then 
+  return -1
+endi
+if $data02 != 37.000000000 then 
+  print $data02
+  return -1
+endi
+if $data03 != 27 then 
+  return -1
+endi
+if $data04 != @70-01-01 07:59:57.000@ then 
+  return -1
+endi
+
+
+sql select last(st2.*,ts,f4) from st2
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-12 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+if $data01 != 6 then 
+  return -1
+endi
+if $data02 != 37.000000000 then 
+  print $data02
+  return -1
+endi
+if $data03 != 27 then 
+  return -1
+endi
+if $data04 != @70-01-01 07:59:57.000@ then 
+  return -1
+endi
+if $data05 != @21-05-12 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+if $data06 != @70-01-01 07:59:57.000@ then 
+  return -1
+endi
+
+
+sql select last(*) from st2 group by id
+if $rows != 5 then
+  return -1
+endi
+if $data00 != @21-05-12 10:10:12.000@ then 
+  return -1
+endi
+if $data01 != 6 then 
+  return -1
+endi
+if $data02 != 5.000000000 then 
+  print $data02
+  return -1
+endi
+if $data03 != 21 then 
+  return -1
+endi
+if $data04 != @70-01-01 07:59:57.000@ then 
+  return -1
+endi
+if $data05 != 1 then 
+  return -1
+endi
+if $data10 != @21-05-11 10:12:23.000@ then 
+  return -1
+endi
+if $data11 != 22 then 
+  return -1
+endi
+if $data12 != 23.000000000 then 
+  print $data02
+  return -1
+endi
+if $data13 != -8 then 
+  return -1
+endi
+if $data14 != @70-01-01 07:59:57.996@ then 
+if $data14 != @70-01-01 07:59:58.-04@ then 
+  print $data14
+  return -1
+endi
+endi
+if $data15 != 2 then 
+  return -1
+endi
+if $data20 != @21-05-10 10:12:24.000@ then 
+  return -1
+endi
+if $data21 != 24 then 
+  return -1
+endi
+if $data22 != 8.000000000 then 
+  print $data02
+  return -1
+endi
+if $data23 != 25 then 
+  return -1
+endi
+if $data24 != @70-01-01 07:59:56.996@ then 
+if $data24 != @70-01-01 07:59:57.-04@ then 
+  return -1
+endi
+endi
+if $data25 != 3 then 
+  return -1
+endi
+if $data30 != @21-05-11 10:12:25.000@ then 
+  return -1
+endi
+if $data31 != 26 then 
+  return -1
+endi
+if $data32 != 17.000000000 then 
+  print $data02
+  return -1
+endi
+if $data33 != 27 then 
+  return -1
+endi
+if $data34 != @70-01-01 07:59:55.996@ then 
+if $data34 != @70-01-01 07:59:56.-04@ then 
+  return -1
+endi
+endi
+if $data35 != 4 then 
+  return -1
+endi
+if $data40 != @21-05-11 10:12:29.000@ then 
+  return -1
+endi
+if $data41 != 36 then 
+  return -1
+endi
+if $data42 != 37.000000000 then 
+  print $data02
+  return -1
+endi
+if $data43 != 35 then 
+  return -1
+endi
+if $data44 != @70-01-01 07:59:55.995@ then 
+if $data44 != @70-01-01 07:59:56.-05@ then 
+  return -1
+endi
+endi
+if $data45 != 5 then 
+  return -1
+endi
+
+
+print "test tbn"
+sql create table tbn (ts timestamp, f1 int, f2 double, f3 binary(10), f4 timestamp)
+sql insert into tbn values ("2021-05-09 10:10:10", 1, 2.0, '3',  -1000)
+sql insert into tbn values ("2021-05-10 10:10:11", 4, 5.0, NULL, -2000)
+sql insert into tbn values ("2021-05-12 10:10:12", 6,NULL, NULL, -3000)
+sql insert into tbn values ("2021-05-13 10:10:12", NULL,NULL, NULL,NULL)
+
+sql select last(*) from tbn;
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-05-13 10:10:12.000@ then 
+  print $data00
+  return -1
+endi
+if $data01 != 6 then 
+  return -1
+endi
+if $data02 != 5.000000000 then 
+  print $data02
+  return -1
+endi
+if $data03 != 3 then 
+  return -1
+endi
+if $data04 != @70-01-01 07:59:57.000@ then 
+  return -1
+endi
+

tests/script/general/parser/testSuite.sim

@@ -59,4 +59,6 @@ run general/parser/having.sim
 run general/parser/having_child.sim
 run general/parser/slimit_alter_tags.sim
 run general/parser/binary_escapeCharacter.sim
+run general/parser/between_and.sim
+run general/parser/last_cache.sim