feat: insert from csv

source/libs/parser/inc/sql.y

@@ -848,14 +848,10 @@ set_quantifier_opt(A) ::= ALL.
 
 %type select_list                                                                 { SNodeList* }
 %destructor select_list                                                           { nodesDestroyList($$); }
-select_list(A) ::= NK_STAR.                                                       { A = NULL; }
+select_list(A) ::= select_item(B).                                                { A = createNodeList(pCxt, B); }
-select_list(A) ::= select_sublist(B).                                             { A = B; }
+select_list(A) ::= select_list(B) NK_COMMA select_item(C).                        { A = addNodeToList(pCxt, B, C); }
-
-%type select_sublist                                                              { SNodeList* }
-%destructor select_sublist                                                        { nodesDestroyList($$); }
-select_sublist(A) ::= select_item(B).                                             { A = createNodeList(pCxt, B); }
-select_sublist(A) ::= select_sublist(B) NK_COMMA select_item(C).                  { A = addNodeToList(pCxt, B, C); }
 
+select_item(A) ::= NK_STAR(B).                                                    { A = createColumnNode(pCxt, NULL, &B); }
 select_item(A) ::= common_expression(B).                                          { A = releaseRawExprNode(pCxt, B); }
 select_item(A) ::= common_expression(B) column_alias(C).                          { A = setProjectionAlias(pCxt, releaseRawExprNode(pCxt, B), &C); }
 select_item(A) ::= common_expression(B) AS column_alias(C).                       { A = setProjectionAlias(pCxt, releaseRawExprNode(pCxt, B), &C); }

source/libs/parser/src/parInsert.c

@@ -1302,6 +1302,74 @@ static int32_t parseValuesClause(SInsertParseContext* pCxt, STableDataBlocks* da
   return TSDB_CODE_SUCCESS;
 }
 
+static int32_t parseCsvFile(SInsertParseContext* pCxt, TdFilePtr fp, STableDataBlocks* pDataBlock, int maxRows,
+                            int32_t* numOfRows) {
+  STableComInfo tinfo = getTableInfo(pDataBlock->pTableMeta);
+  int32_t       extendedRowSize = getExtendedRowSize(pDataBlock);
+  CHECK_CODE(initRowBuilder(&pDataBlock->rowBuilder, pDataBlock->pTableMeta->sversion, &pDataBlock->boundColumnInfo));
+
+  (*numOfRows) = 0;
+  char    tmpTokenBuf[TSDB_MAX_BYTES_PER_ROW] = {0};  // used for deleting Escape character: \\, \', \"
+  char*   pLine = NULL;
+  int64_t readLen = 0;
+  while ((readLen = taosGetLineFile(fp, &pLine)) != -1) {
+    if (('\r' == pLine[readLen - 1]) || ('\n' == pLine[readLen - 1])) {
+      pLine[--readLen] = '\0';
+    }
+
+    if (readLen == 0) {
+      continue;
+    }
+
+    if ((*numOfRows) >= maxRows || pDataBlock->size + extendedRowSize >= pDataBlock->nAllocSize) {
+      int32_t tSize;
+      CHECK_CODE(allocateMemIfNeed(pDataBlock, extendedRowSize, &tSize));
+      ASSERT(tSize >= maxRows);
+      maxRows = tSize;
+    }
+
+    strtolower(pLine, pLine);
+    char* pRawSql = pCxt->pSql;
+    pCxt->pSql = pLine;
+    bool gotRow = false;
+    CHECK_CODE(parseOneRow(pCxt, pDataBlock, tinfo.precision, &gotRow, tmpTokenBuf));
+    if (gotRow) {
+      pDataBlock->size += extendedRowSize;  // len;
+      (*numOfRows)++;
+    }
+    pCxt->pSql = pRawSql;
+  }
+
+  if (0 == (*numOfRows) && (!TSDB_QUERY_HAS_TYPE(pCxt->pOutput->insertType, TSDB_QUERY_TYPE_STMT_INSERT))) {
+    return buildSyntaxErrMsg(&pCxt->msg, "no any data points", NULL);
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t parseDataFromFile(SInsertParseContext* pCxt, SToken filePath, STableDataBlocks* dataBuf) {
+  char filePathStr[TSDB_FILENAME_LEN] = {0};
+  strncpy(filePathStr, filePath.z, filePath.n);
+  TdFilePtr fp = taosOpenFile(filePathStr, TD_FILE_READ | TD_FILE_STREAM);
+  if (NULL == fp) {
+    return TAOS_SYSTEM_ERROR(errno);
+  }
+
+  int32_t maxNumOfRows;
+  CHECK_CODE(allocateMemIfNeed(dataBuf, getExtendedRowSize(dataBuf), &maxNumOfRows));
+
+  int32_t numOfRows = 0;
+  CHECK_CODE(parseCsvFile(pCxt, fp, dataBuf, maxNumOfRows, &numOfRows));
+
+  SSubmitBlk* pBlocks = (SSubmitBlk*)(dataBuf->pData);
+  if (TSDB_CODE_SUCCESS != setBlockInfo(pBlocks, dataBuf, numOfRows)) {
+    return buildInvalidOperationMsg(&pCxt->msg, "too many rows in sql, total number of rows should be less than 32767");
+  }
+
+  dataBuf->numOfTables = 1;
+  pCxt->totalNum += numOfRows;
+  return TSDB_CODE_SUCCESS;
+}
+
 void destroyCreateSubTbReq(SVCreateTbReq* pReq) {
   taosMemoryFreeClear(pReq->name);
   taosMemoryFreeClear(pReq->ctb.pTag);
@@ -1421,7 +1489,7 @@ static int32_t parseInsertBody(SInsertParseContext* pCxt) {
       if (0 == sToken.n || (TK_NK_STRING != sToken.type && TK_NK_ID != sToken.type)) {
         return buildSyntaxErrMsg(&pCxt->msg, "file path is required following keyword FILE", sToken.z);
       }
-      // todo
+      CHECK_CODE(parseDataFromFile(pCxt, sToken, dataBuf));
       pCxt->pOutput->insertType = TSDB_QUERY_TYPE_FILE_INSERT;
 
       tbNum++;

source/libs/parser/src/parTokenizer.c

@@ -86,6 +86,7 @@ static SKeyword keywordTable[] = {
     {"EXISTS",         TK_EXISTS},
     {"EXPLAIN",        TK_EXPLAIN},
     {"EVERY",          TK_EVERY},
+    {"FILE",           TK_FILE},
     {"FILL",           TK_FILL},
     {"FIRST",          TK_FIRST},
     {"FLOAT",          TK_FLOAT},

source/libs/parser/src/parTranslater.c

@@ -1984,13 +1984,18 @@ static int32_t createMultiResFuncsFromStar(STranslateContext* pCxt, SFunctionNod
 }
 
 static int32_t translateStar(STranslateContext* pCxt, SSelectStmt* pSelect) {
-  if (NULL == pSelect->pProjectionList) {  // select * ...
-    return createAllColumns(pCxt, &pSelect->pProjectionList);
-  } else {
   SNode* pNode = NULL;
   WHERE_EACH(pNode, pSelect->pProjectionList) {
     int32_t code = TSDB_CODE_SUCCESS;
-      if (isMultiResFunc(pNode)) {
+    if (isStar(pNode)) {
+      SNodeList* pCols = NULL;
+      code = createAllColumns(pCxt, &pCols);
+      if (TSDB_CODE_SUCCESS == code) {
+        INSERT_LIST(pSelect->pProjectionList, pCols);
+        ERASE_NODE(pSelect->pProjectionList);
+        continue;
+      }
+    } else if (isMultiResFunc(pNode)) {
       SNodeList* pFuncs = NULL;
       code = createMultiResFuncsFromStar(pCxt, (SFunctionNode*)pNode, &pFuncs);
       if (TSDB_CODE_SUCCESS == code) {
@@ -2012,7 +2017,6 @@ static int32_t translateStar(STranslateContext* pCxt, SSelectStmt* pSelect) {
     }
     WHERE_NEXT;
   }
-  }
   return TSDB_CODE_SUCCESS;
 }
 

tools/shell/src/shellEngine.c

@@ -364,7 +364,7 @@ int32_t shellDumpResultToFile(const char *fname, TAOS_RES *tres) {
     int32_t *length = taos_fetch_lengths(tres);
     for (int32_t i = 0; i < num_fields; i++) {
       if (i > 0) {
-        taosFprintfFile(pFile, "\n");
+        taosFprintfFile(pFile, ",");
       }
       shellDumpFieldToFile(pFile, (const char *)row[i], fields + i, length[i], precision);
     }
@@ -394,9 +394,9 @@ void shellPrintNChar(const char *str, int32_t length, int32_t width) {
       break;
     }
     int w = 0;
-    if(*(str + pos) == '\t' || *(str + pos) == '\n' || *(str + pos) == '\r'){
+    if (*(str + pos) == '\t' || *(str + pos) == '\n' || *(str + pos) == '\r') {
       w = bytes;
-    }else{
+    } else {
       w = taosWcharWidth(wc);
     }
     pos += bytes;
@@ -513,7 +513,7 @@ void shellPrintField(const char *val, TAOS_FIELD *field, int32_t width, int32_t
 }
 
 bool shellIsLimitQuery(const char *sql) {
-  //todo refactor
+  // todo refactor
   if (taosStrCaseStr(sql, " limit ") != NULL) {
     return true;
   }
@@ -522,7 +522,7 @@ bool shellIsLimitQuery(const char *sql) {
 }
 
 bool shellIsShowQuery(const char *sql) {
-  //todo refactor
+  // todo refactor
   if (taosStrCaseStr(sql, "show ") != NULL) {
     return true;
   }
@@ -530,7 +530,6 @@ bool shellIsShowQuery(const char *sql) {
   return false;
 }
 
-
 int32_t shellVerticalPrintResult(TAOS_RES *tres, const char *sql) {
   TAOS_ROW row = taos_fetch_row(tres);
   if (row == NULL) {