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MCOL-739 Add command to get the system catalog

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Added to DBRM master for use with the the new API so that it can get the
system catalog via the wire protocol.
This commit is contained in:
Andrew Hutchings
2017-06-06 14:17:23 +01:00
parent ba7825cce6
commit ab9e0a509d
3 changed files with 63 additions and 0 deletions
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61
versioning/BRM/masterdbrmnode.cpp
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@ -362,6 +362,7 @@ void MasterDBRMNode::msgProcessor()
case SETREADONLY: doSetReadOnly(p->sock, true); continue;
case SETREADWRITE: doSetReadOnly(p->sock, false); continue;
case GETREADONLY: doGetReadOnly(p->sock); continue;
case GET_SYSTEM_CATALOG: doGetSystemCatalog(msg, p); continue;
}
/* Process SessionManager calls */
@ -1093,6 +1094,66 @@ void MasterDBRMNode::doVerID(ByteStream &msg, ThreadParams *p)
catch (exception&) { }
}
void MasterDBRMNode::doGetSystemCatalog(ByteStream &msg, ThreadParams *p)
{
ByteStream reply;
reply << (uint8_t) ERR_OK;
boost::shared_ptr<execplan::CalpontSystemCatalog> systemCatalogPtr =
execplan::CalpontSystemCatalog::makeCalpontSystemCatalog();
const std::vector< std::pair<execplan::CalpontSystemCatalog::OID, execplan::CalpontSystemCatalog::TableName> > catalog_tables
= systemCatalogPtr->getTables();
reply << (uint32_t) systemCatalogPtr->getTableCount();
for (std::vector<std::pair<execplan::CalpontSystemCatalog::OID, execplan::CalpontSystemCatalog::TableName> >::const_iterator it = catalog_tables.begin();
it != catalog_tables.end(); ++it)
{
execplan::CalpontSystemCatalog::TableInfo tb_info = systemCatalogPtr->tableInfo((*it).second);
reply << (uint32_t)(*it).first;
reply << (*it).second.schema;
reply << (*it).second.table;
reply << (uint32_t)tb_info.numOfCols;
execplan::CalpontSystemCatalog::RIDList column_rid_list = systemCatalogPtr->columnRIDs((*it).second, true);
for (size_t col_num = 0; col_num < column_rid_list.size(); col_num++)
{
execplan::CalpontSystemCatalog::TableColName tcn = systemCatalogPtr->colName(column_rid_list[col_num].objnum);
execplan::CalpontSystemCatalog::ColType ct = systemCatalogPtr->colType(column_rid_list[col_num].objnum);
reply << (uint32_t)column_rid_list[col_num].objnum;
reply << tcn.column;
if (ct.ddn.dictOID == std::numeric_limits<int32_t>::min())
{
reply << (uint32_t) 0;
}
else
{
reply << (uint32_t) ct.ddn.dictOID;
}
reply << (uint8_t) ct.colDataType;
reply << (uint32_t) ct.colWidth;
reply << (uint32_t) ct.colPosition;
reply << ct.defaultValue;
reply << (uint8_t) ct.autoincrement;
reply << (uint32_t) ct.precision;
reply << (uint32_t) ct.scale;
if (ct.constraintType != execplan::CalpontSystemCatalog::NOTNULL_CONSTRAINT)
{
reply << (uint8_t) 1;
}
else
{
reply << (uint8_t) 0;
}
reply << (uint8_t) ct.compressionType;
}
}
try {
p->sock->write(reply);
}
catch (exception&) { }
}
void MasterDBRMNode::doSysCatVerID(ByteStream &msg, ThreadParams *p)
{
ByteStream reply;