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[TD-977]

This commit is contained in:
Shengliang Guan 2020-07-24 04:01:21 +00:00
parent 746477086b
commit c9f72ce620
2 changed files with 96 additions and 0 deletions
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1
src/inc/taosmsg.h
View File

@ -149,6 +149,7 @@ enum _mgmt_table {
#define TSDB_ALTER_TABLE_ADD_COLUMN 5
#define TSDB_ALTER_TABLE_DROP_COLUMN 6
#define TSDB_ALTER_TABLE_CHANGE_COLUMN 7
#define TSDB_FILL_NONE 0
#define TSDB_FILL_NULL 1

95
src/mnode/src/mnodeTable.c
View File

@ -1223,6 +1223,55 @@ static int32_t mnodeDropSuperTableColumn(SMnodeMsg *pMsg, char *colName) {
return code;
}
static int32_t mnodeChangeSuperTableColumnCb(SMnodeMsg *pMsg, int32_t code) {
SSuperTableObj *pStable = (SSuperTableObj *)pMsg->pTable;
mLInfo("app:%p:%p, stable %s, change column result:%s", pMsg->rpcMsg.ahandle, pMsg, pStable->info.tableId,
tstrerror(code));
return code;
}
static int32_t mnodeChangeSuperTableColumn(SMnodeMsg *pMsg, char *oldName, char *newName) {
SSuperTableObj *pStable = (SSuperTableObj *)pMsg->pTable;
int32_t col = mnodeFindSuperTableColumnIndex(pStable, oldName);
if (col < 0) {
mError("app:%p:%p, stable:%s, change column, oldName: %s, newName: %s", pMsg->rpcMsg.ahandle, pMsg,
pStable->info.tableId, oldName, newName);
return TSDB_CODE_MND_FIELD_NOT_EXIST;
}
// int32_t rowSize = 0;
uint32_t len = strlen(newName);
if (len >= TSDB_COL_NAME_LEN) {
return TSDB_CODE_MND_COL_NAME_TOO_LONG;
}
if (mnodeFindSuperTableColumnIndex(pStable, newName) >= 0) {
return TSDB_CODE_MND_FIELD_ALREAY_EXIST;
}
// update
SSchema *schema = (SSchema *) (pStable->schema + col);
tstrncpy(schema->name, newName, sizeof(schema->name));
mInfo("app:%p:%p, stable %s, start to modify column %s to %s", pMsg->rpcMsg.ahandle, pMsg, pStable->info.tableId,
oldName, newName);
SSdbOper oper = {
.type = SDB_OPER_GLOBAL,
.table = tsSuperTableSdb,
.pObj = pStable,
.pMsg = pMsg,
.cb = mnodeChangeSuperTableColumnCb
};
int32_t code = sdbUpdateRow(&oper);
if (code == TSDB_CODE_SUCCESS) {
code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
}
return code;
}
// show super tables
static int32_t mnodeGetShowSuperTableMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
SDbObj *pDb = mnodeGetDb(pShow->db);
@ -1977,6 +2026,48 @@ static int32_t mnodeDropNormalTableColumn(SMnodeMsg *pMsg, char *colName) {
return code;
}
static int32_t mnodeChangeNormalTableColumn(SMnodeMsg *pMsg, char *oldName, char *newName) {
SChildTableObj *pTable = (SChildTableObj *)pMsg->pTable;
int32_t col = mnodeFindNormalTableColumnIndex(pTable, oldName);
if (col < 0) {
mError("app:%p:%p, ctable:%s, change column, oldName: %s, newName: %s", pMsg->rpcMsg.ahandle, pMsg,
pTable->info.tableId, oldName, newName);
return TSDB_CODE_MND_FIELD_NOT_EXIST;
}
// int32_t rowSize = 0;
uint32_t len = strlen(newName);
if (len >= TSDB_COL_NAME_LEN) {
return TSDB_CODE_MND_COL_NAME_TOO_LONG;
}
if (mnodeFindNormalTableColumnIndex(pTable, newName) >= 0) {
return TSDB_CODE_MND_FIELD_ALREAY_EXIST;
}
// update
SSchema *schema = (SSchema *) (pTable->schema + col);
tstrncpy(schema->name, newName, sizeof(schema->name));
mInfo("app:%p:%p, ctable %s, start to modify column %s to %s", pMsg->rpcMsg.ahandle, pMsg, pTable->info.tableId,
oldName, newName);
SSdbOper oper = {
.type = SDB_OPER_GLOBAL,
.table = tsChildTableSdb,
.pObj = pTable,
.pMsg = pMsg,
.cb = mnodeAlterNormalTableColumnCb
};
int32_t code = sdbUpdateRow(&oper);
if (code == TSDB_CODE_SUCCESS) {
code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
}
return code;
}
static int32_t mnodeSetSchemaFromNormalTable(SSchema *pSchema, SChildTableObj *pTable) {
int32_t numOfCols = pTable->numOfColumns;
for (int32_t i = 0; i < numOfCols; ++i) {
@ -2596,6 +2687,8 @@ static int32_t mnodeProcessAlterTableMsg(SMnodeMsg *pMsg) {
code = mnodeAddSuperTableColumn(pMsg, pAlter->schema, 1);
} else if (pAlter->type == TSDB_ALTER_TABLE_DROP_COLUMN) {
code = mnodeDropSuperTableColumn(pMsg, pAlter->schema[0].name);
} else if (pAlter->type == TSDB_ALTER_TABLE_CHANGE_COLUMN) {
code = mnodeChangeSuperTableColumn(pMsg, pAlter->schema[0].name, pAlter->schema[1].name);
} else {
}
} else {
@ -2606,6 +2699,8 @@ static int32_t mnodeProcessAlterTableMsg(SMnodeMsg *pMsg) {
code = mnodeAddNormalTableColumn(pMsg, pAlter->schema, 1);
} else if (pAlter->type == TSDB_ALTER_TABLE_DROP_COLUMN) {
code = mnodeDropNormalTableColumn(pMsg, pAlter->schema[0].name);
} else if (pAlter->type == TSDB_ALTER_TABLE_CHANGE_COLUMN) {
code = mnodeChangeNormalTableColumn(pMsg, pAlter->schema[0].name, pAlter->schema[1].name);
} else {
}
}