feature/qnode

include/common/tmsg.h

@@ -2293,6 +2293,24 @@ static FORCE_INLINE void* tDecodeTSmaWrapper(void* buf, STSmaWrapper* pSW) {
   return buf;
 }
 
+typedef struct {
+  char indexFName[TSDB_INDEX_FNAME_LEN];
+} SUserIndexReq;
+
+int32_t tSerializeSUserIndexReq(void* buf, int32_t bufLen, SUserIndexReq* pReq);
+int32_t tDeserializeSUserIndexReq(void* buf, int32_t bufLen, SUserIndexReq* pReq);
+
+typedef struct {
+  char dbFName[TSDB_DB_FNAME_LEN];
+  char tblFName[TSDB_TABLE_FNAME_LEN];
+  char colName[TSDB_COL_NAME_LEN];
+  char indexType[TSDB_INDEX_TYPE_LEN];
+  char indexExts[TSDB_INDEX_EXTS_LEN];
+} SUserIndexRsp;
+
+int32_t tSerializeSUserIndexRsp(void* buf, int32_t bufLen, const SUserIndexRsp* pRsp);
+int32_t tDeserializeSUserIndexRsp(void* buf, int32_t bufLen, SUserIndexRsp* pRsp);
+
 typedef struct {
   int8_t  mqMsgType;
   int32_t code;

include/common/tmsgdef.h

@@ -156,6 +156,7 @@ enum {
   TD_DEF_MSG_TYPE(TDMT_MND_ALTER_STREAM, "mnode-alter-stream", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_MND_DROP_STREAM, "mnode-drop-stream", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_MND_GET_DB_CFG, "mnode-get-db-cfg", NULL, NULL)
+  TD_DEF_MSG_TYPE(TDMT_MND_GET_INDEX, "mnode-get-index", NULL, NULL)
 
   // Requests handled by VNODE
   TD_NEW_MSG_SEG(TDMT_VND_MSG)

include/util/taoserror.h

@@ -217,6 +217,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_MND_INVALID_DB_OPTION         TAOS_DEF_ERROR_CODE(0, 0x0385)
 #define TSDB_CODE_MND_INVALID_DB_ACCT           TAOS_DEF_ERROR_CODE(0, 0x0386)
 #define TSDB_CODE_MND_DB_OPTION_UNCHANGED       TAOS_DEF_ERROR_CODE(0, 0x0387)
+#define TSDB_CODE_MND_DB_INDEX_NOT_EXIST        TAOS_DEF_ERROR_CODE(0, 0x0388)
 
 // mnode-vgroup
 #define TSDB_CODE_MND_VGROUP_NOT_EXIST          TAOS_DEF_ERROR_CODE(0, 0x0390)

include/util/tdef.h

@@ -109,6 +109,9 @@ extern const int32_t TYPE_BYTES[15];
 #define TSDB_INS_TABLE_USER_USERS             "user_users"
 #define TSDB_INS_TABLE_VGROUPS                "vgroups"
 
+#define TSDB_INDEX_TYPE_SMA      "SMA"
+#define TSDB_INDEX_TYPE_FULLTEXT "FULLTEXT"
+
 #define TSDB_INS_USER_STABLES_DBNAME_COLID    2
 
 #define TSDB_TICK_PER_SECOND(precision)                      \
@@ -213,6 +216,9 @@ typedef enum ELogicConditionType {
 #define TSDB_FUNC_MAX_RETRIEVE   1024
 
 #define TSDB_INDEX_NAME_LEN      65  // 64 + 1 '\0'
+#define TSDB_INDEX_TYPE_LEN      10
+#define TSDB_INDEX_EXTS_LEN      256
+#define TSDB_INDEX_FNAME_LEN     (TSDB_DB_FNAME_LEN + TSDB_INDEX_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
 #define TSDB_TYPE_STR_MAX_LEN    32
 #define TSDB_TABLE_FNAME_LEN     (TSDB_DB_FNAME_LEN + TSDB_TABLE_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
 #define TSDB_TOPIC_FNAME_LEN     TSDB_TABLE_FNAME_LEN

source/common/src/tmsg.c

@@ -2033,6 +2033,64 @@ int32_t tDeserializeSDbCfgRsp(void* buf, int32_t bufLen, SDbCfgRsp* pRsp) {
   return 0;
 }
 
+int32_t tSerializeSUserIndexReq(void* buf, int32_t bufLen, SUserIndexReq* pReq) {
+  SCoder encoder = {0};
+  tCoderInit(&encoder, TD_LITTLE_ENDIAN, buf, bufLen, TD_ENCODER);
+
+  if (tStartEncode(&encoder) < 0) return -1;
+  if (tEncodeCStr(&encoder, pReq->indexFName) < 0) return -1;
+  tEndEncode(&encoder);
+
+  int32_t tlen = encoder.pos;
+  tCoderClear(&encoder);
+  return tlen;
+}
+
+int32_t tDeserializeSUserIndexReq(void* buf, int32_t bufLen, SUserIndexReq* pReq) {
+  SCoder decoder = {0};
+  tCoderInit(&decoder, TD_LITTLE_ENDIAN, buf, bufLen, TD_DECODER);
+
+  if (tStartDecode(&decoder) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pReq->indexFName) < 0) return -1;
+  tEndDecode(&decoder);
+
+  tCoderClear(&decoder);
+  return 0;
+}
+
+int32_t tSerializeSUserIndexRsp(void* buf, int32_t bufLen, const SUserIndexRsp* pRsp) {
+  SCoder encoder = {0};
+  tCoderInit(&encoder, TD_LITTLE_ENDIAN, buf, bufLen, TD_ENCODER);
+
+  if (tStartEncode(&encoder) < 0) return -1;
+  if (tEncodeCStr(&encoder, pRsp->dbFName) < 0) return -1;
+  if (tEncodeCStr(&encoder, pRsp->tblFName) < 0) return -1;
+  if (tEncodeCStr(&encoder, pRsp->colName) < 0) return -1;
+  if (tEncodeCStr(&encoder, pRsp->indexType) < 0) return -1;
+  if (tEncodeCStr(&encoder, pRsp->indexExts) < 0) return -1;
+  tEndEncode(&encoder);
+
+  int32_t tlen = encoder.pos;
+  tCoderClear(&encoder);
+  return tlen;
+}
+
+int32_t tDeserializeSUserIndexRsp(void* buf, int32_t bufLen, SUserIndexRsp* pRsp) {
+  SCoder decoder = {0};
+  tCoderInit(&decoder, TD_LITTLE_ENDIAN, buf, bufLen, TD_DECODER);
+
+  if (tStartDecode(&decoder) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pRsp->dbFName) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pRsp->tblFName) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pRsp->colName) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pRsp->indexType) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pRsp->indexExts) < 0) return -1;
+  tEndDecode(&decoder);
+
+  tCoderClear(&decoder);
+  return 0;
+}
+
 
 int32_t tSerializeSShowReq(void *buf, int32_t bufLen, SShowReq *pReq) {
   SCoder encoder = {0};

source/dnode/mgmt/mm/mmHandle.c

@@ -147,6 +147,7 @@ void mmInitMsgHandle(SMgmtWrapper *pWrapper) {
   dndSetMsgHandle(pWrapper, TDMT_MND_CREATE_STREAM, mmProcessWriteMsg, DEFAULT_HANDLE);
   dndSetMsgHandle(pWrapper, TDMT_VND_TASK_DEPLOY_RSP, mmProcessWriteMsg, DEFAULT_HANDLE);
   dndSetMsgHandle(pWrapper, TDMT_MND_GET_DB_CFG, mmProcessReadMsg, DEFAULT_HANDLE);
+  dndSetMsgHandle(pWrapper, TDMT_MND_GET_INDEX, mmProcessReadMsg, DEFAULT_HANDLE);
 
   // Requests handled by VNODE
   dndSetMsgHandle(pWrapper, TDMT_VND_MQ_SET_CONN_RSP, mmProcessWriteMsg, DEFAULT_HANDLE);

source/dnode/mnode/impl/src/mndDb.c

@@ -58,6 +58,7 @@ int32_t mndInitDb(SMnode *pMnode) {
   mndSetMsgHandle(pMnode, TDMT_MND_SYNC_DB, mndProcessSyncDbReq);
   mndSetMsgHandle(pMnode, TDMT_MND_COMPACT_DB, mndProcessCompactDbReq);
   mndSetMsgHandle(pMnode, TDMT_MND_GET_DB_CFG, mndProcessGetDbCfgReq);
+  mndSetMsgHandle(pMnode, TDMT_MND_GET_INDEX, mndProcessGetIndexReq);
 
   mndAddShowMetaHandle(pMnode, TSDB_MGMT_TABLE_DB, mndGetDbMeta);
   mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_DB, mndRetrieveDbs);
@@ -1661,3 +1662,48 @@ static void mndCancelGetNextDb(SMnode *pMnode, void *pIter) {
   SSdb *pSdb = pMnode->pSdb;
   sdbCancelFetch(pSdb, pIter);
 }
+
+static int32_t mndProcessGetIndexReq(SNodeMsg *pReq) {
+  SUserIndexReq indexReq = {0};
+  SMnode      *pMnode = pReq->pNode;
+  int32_t      code = -1;
+  SUserIndexRsp rsp = {0};
+  bool exist = false;
+
+  if (tDeserializeSUserIndexReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &indexReq) != 0) {
+    terrno = TSDB_CODE_INVALID_MSG;
+    goto _OVER;
+  }
+
+  code = mndProcessGetSmaReq(pMnode, &indexReq, &rsp, &exist);
+  if (code) {
+    goto _OVER;
+  }
+
+  if (!exist) {
+    //TODO GET INDEX FROM FULLTEXT
+  } else {
+    int32_t contLen = tSerializeSUserIndexRsp(NULL, 0, &rsp);
+    void   *pRsp = rpcMallocCont(contLen);
+    if (pRsp == NULL) {
+      terrno = TSDB_CODE_OUT_OF_MEMORY;
+      code = -1;
+      goto _OVER;
+    }
+    
+    tSerializeSUserIndexRsp(pRsp, contLen, &rsp);
+    
+    pReq->pRsp = pRsp;
+    pReq->rspLen = contLen;
+
+    code = 0;
+  }
+
+_OVER:
+  if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
+    mError("failed to get index %s since %s", indexReq.indexFName, terrstr());
+  }
+
+  return code;
+}
+

source/dnode/mnode/impl/src/mndInfoSchema.c

@@ -18,6 +18,7 @@
 
 #define SYSTABLE_SCH_TABLE_NAME_LEN ((TSDB_TABLE_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
 #define SYSTABLE_SCH_DB_NAME_LEN    ((TSDB_DB_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
+#define SYSTABLE_SCH_COL_NAME_LEN    ((TSDB_COL_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
 
 //!!!! Note: only APPEND columns in below tables, NO insert !!!!
 static const SInfosTableSchema dnodesSchema[] = {
@@ -79,11 +80,11 @@ static const SInfosTableSchema userFuncSchema[] = {
     {.name = "status", .bytes = 10, .type = TSDB_DATA_TYPE_BINARY},
 };
 static const SInfosTableSchema userIdxSchema[] = {
-    {.name = "db_name", .bytes = 32, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "table_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "index_database", .bytes = 32, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "index_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "column_name", .bytes = 64, .type = TSDB_DATA_TYPE_BINARY},
+    {.name = "db_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
+    {.name = "table_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
+    {.name = "index_database", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
+    {.name = "index_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
+    {.name = "column_name", .bytes = SYSTABLE_SCH_COL_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
     {.name = "index_type", .bytes = 10, .type = TSDB_DATA_TYPE_BINARY},
     {.name = "index_extensions", .bytes = 256, .type = TSDB_DATA_TYPE_BINARY},
 };

source/dnode/mnode/impl/src/mndSma.c

@@ -689,6 +689,40 @@ _OVER:
   return code;
 }
 
+static int32_t mndProcessGetSmaReq(SMnode      *pMnode, SUserIndexReq *indexReq, SUserIndexRsp *rsp, bool *exist) {
+  int32_t      code = -1;
+  SSmaObj     *pSma = NULL;
+
+  pSma = mndAcquireSma(pMnode, indexReq.indexFName);
+  if (pSma == NULL) {
+    //TODO TRY TO GET INDEX FROM FULLTEXT
+    *exist = false;
+    return 0;
+  }
+
+  memcpy(rsp->dbFName, pSma->db, sizeof(pSma->db));
+  memcpy(rsp->tblFName, pSma->stb, sizeof(pSma->stb));
+  strcpy(rsp->indexType, TSDB_INDEX_TYPE_SMA);
+
+  SNodeList *pList = NULL;
+  int32_t extOffset = 0;
+  code = nodesStringToList(pSma->expr, &pList);
+  if (0 == code) {
+    SNode *node = NULL;
+    FOREACH(node, pList) {
+      SFunctionNode *pFunc = (SFunctionNode *)node;
+      extOffset += snprintf(rsp->indexExts + extOffset, sizeof(rsp->indexExts) - extOffset - 1, "%s%s", (extOffset ? ",":""), pFunc->functionName);
+    }
+
+    *exist = true;
+  }
+
+  mndReleaseSma(pMnode, pSma);
+
+  return code;
+}
+
+
 static int32_t mndProcessVDropSmaRsp(SNodeMsg *pRsp) {
   mndTransProcessRsp(pRsp);
   return 0;

source/util/src/terror.c

@@ -224,6 +224,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_DB,               "Invalid database name
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_DB_OPTION,        "Invalid database options")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_DB_ACCT,          "Invalid database account")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_DB_OPTION_UNCHANGED,      "Database options not changed")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_DB_INDEX_NOT_EXIST,       "Index not exist")
 
 // mnode-vgroup
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_VGROUP_ALREADY_IN_DNODE,  "Vgroup already in dnode")