database/mariadb-columnstore-engine
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MCOL-1229 - IS.columnstore_columns crashes when DDL is simultaneously executing.

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The crash was due to an attempt to iterate over the columns of a recently dropped table.
Such a table will now be ignored.
This commit is contained in:
Ravi Prakash
2018-04-28 14:48:13 -07:00
parent 585388188f
commit 1bcc8a3052
1 changed files with 18 additions and 1 deletions
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19
dbcon/mysql/is_columnstore_columns.cpp
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@ -27,6 +27,8 @@
#include <boost/shared_ptr.hpp>
#include "calpontsystemcatalog.h"
#include "dataconvert.h"
#include "exceptclasses.h"
using namespace logging;
// Required declaration as it isn't in a MairaDB include
@ -70,7 +72,22 @@ static int is_columnstore_columns_fill(THD *thd, TABLE_LIST *tables, COND *cond)
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, true);
execplan::CalpontSystemCatalog::RIDList column_rid_list;
// Note a table may get dropped as you iterate over the list of tables.
// So simply ignore the dropped table.
try {
column_rid_list = systemCatalogPtr->columnRIDs((*it).second, true);
}
catch (IDBExcept& ex)
{
if (ex.errorCode() == ERR_TABLE_NOT_IN_CATALOG) {
continue;
}
else {
throw;
}
}
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);