database/mariadb-columnstore-engine
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Code Activity

MCOL-507 Further ExeMgr performance improvements

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This does the following:

* Switch resource manager to a singleton which reduces the amount of
times the XML data is scanned and objects allocated.
* Make the I_S tables use the FE implementation of the system catalog
* Make the I_S.columnstore_columns table use the RID list cache
* Make the extentmap pre-allocate a vector instead of many small allocs
This commit is contained in:
Andrew Hutchings
2017-01-16 12:33:27 +00:00
parent 605f6c51e2
commit ffcfc41563
49 changed files with 197 additions and 178 deletions
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4
dbcon/mysql/is_columnstore_columns.cpp
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@ -65,10 +65,12 @@ static int is_columnstore_columns_fill(THD *thd, TABLE_LIST *tables, COND *cond)
const std::vector< std::pair<execplan::CalpontSystemCatalog::OID, execplan::CalpontSystemCatalog::TableName> > catalog_tables
= systemCatalogPtr->getTables();
systemCatalogPtr->identity(execplan::CalpontSystemCatalog::FE);
for (std::vector<std::pair<execplan::CalpontSystemCatalog::OID, execplan::CalpontSystemCatalog::TableName> >::const_iterator it = catalog_tables.begin();
it != catalog_tables.end(); ++it)
{
execplan::CalpontSystemCatalog::RIDList column_rid_list = systemCatalogPtr->columnRIDs((*it).second);
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);