Parser::OptimizeTableStmt Class Reference

#include <ParserNode.h>

Inheritance diagram for Parser::OptimizeTableStmt:

Collaboration diagram for Parser::OptimizeTableStmt:

Public Member Functions
	OptimizeTableStmt (std::string *table, std::list< NameValueAssign * > *o)
	OptimizeTableStmt (const rapidjson::Value &payload)
const std::string	getTableName () const
bool	shouldVacuumDeletedRows () const
void	execute (const Catalog_Namespace::SessionInfo &session, bool read_only_mode) override
Public Member Functions inherited from Parser::DDLStmt
void	setColumnDescriptor (ColumnDescriptor &cd, const ColumnDef *coldef)
Public Member Functions inherited from Parser::Node
virtual	~Node ()

Private Attributes
std::unique_ptr< std::string >	table_
std::list< std::unique_ptr < NameValueAssign > >	options_

Detailed Description

Definition at line 1252 of file ParserNode.h.

Constructor & Destructor Documentation

Parser::OptimizeTableStmt::OptimizeTableStmt ( std::string *  table, std::list< NameValueAssign * > *  o  )

inline

Definition at line 1254 of file ParserNode.h.

References options_, and table_.

                                                                    : table_(table) {
    if (!table_) {
      throw std::runtime_error("Table name is required for OPTIMIZE command.");
    }
    if (o) {
      for (const auto e : *o) {
        options_.emplace_back(e);
      }
      delete o;
    }
  }

Parser::OptimizeTableStmt::OptimizeTableStmt

(

const rapidjson::Value &

payload

)

Definition at line 4624 of file ParserNode.cpp.

References CHECK, json_str(), options_, Parser::anonymous_namespace{ParserNode.cpp}::parse_options(), and table_.

                                                                  {
  CHECK(payload.HasMember("tableName"));
  table_ = std::make_unique<std::string>(json_str(payload["tableName"]));
  parse_options(payload, options_);
}

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Member Function Documentation

void Parser::OptimizeTableStmt::execute ( const Catalog_Namespace::SessionInfo &  session, bool  read_only_mode  )

overridevirtual

Implements Parser::DDLStmt.

Definition at line 4646 of file ParserNode.cpp.

References Catalog_Namespace::DBMetadata::dbId, AccessPrivileges::DELETE_FROM_TABLE, legacylockmgr::ExecutorOuterLock, Catalog_Namespace::SessionInfo::getCatalog(), Catalog_Namespace::Catalog::getCurrentDB(), Executor::getExecutor(), legacylockmgr::LockMgr< MutexType, KeyType >::getMutex(), CacheInvalidator< CACHE_HOLDING_TYPES >::invalidateCachesByTable(), TableDescriptor::isView, TableOptimizer::recomputeMetadata(), shouldVacuumDeletedRows(), table_, TableDescriptor::tableId, Executor::UNITARY_EXECUTOR_ID, Parser::anonymous_namespace{ParserNode.cpp}::user_can_access_table(), and TableOptimizer::vacuumDeletedRows().

Referenced by heavydb.cursor.Cursor::executemany().

                                                     {
  if (read_only_mode) {
    throw std::runtime_error("OPTIMIZE TABLE invalid in read only mode.");
  }
  auto& catalog = session.getCatalog();

  const auto execute_read_lock =
      heavyai::shared_lock<legacylockmgr::WrapperType<heavyai::shared_mutex>>(
          *legacylockmgr::LockMgr<heavyai::shared_mutex, bool>::getMutex(
              legacylockmgr::ExecutorOuterLock, true));

  const auto td_with_lock =
      lockmgr::TableSchemaLockContainer<lockmgr::WriteLock>::acquireTableDescriptor(
          catalog, *table_);
  const auto td = td_with_lock();

  if (!td || !user_can_access_table(session, td, AccessPrivileges::DELETE_FROM_TABLE)) {
    throw std::runtime_error("Table " + *table_ + " does not exist.");
  }

  if (td->isView) {
    throw std::runtime_error("OPTIMIZE TABLE command is not supported on views.");
  }

  // invalidate cached item
  std::vector<int> table_key{catalog.getCurrentDB().dbId, td->tableId};
  ResultSetCacheInvalidator::invalidateCachesByTable(boost::hash_value(table_key));

  auto executor = Executor::getExecutor(Executor::UNITARY_EXECUTOR_ID).get();
  const TableOptimizer optimizer(td, executor, catalog);
  if (shouldVacuumDeletedRows()) {
    optimizer.vacuumDeletedRows();
  }
  optimizer.recomputeMetadata();
}

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const std::string Parser::OptimizeTableStmt::getTableName ( ) const

inline

Definition at line 1267 of file ParserNode.h.

References table_.

{ return *(table_.get()); }

bool Parser::OptimizeTableStmt::shouldVacuumDeletedRows ( ) const

inline

Definition at line 1269 of file ParserNode.h.

References options_.

Referenced by execute().

                                       {
    for (const auto& e : options_) {
      if (boost::iequals(*(e->get_name()), "VACUUM")) {
        return true;
      }
    }
    return false;
  }

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Member Data Documentation

std::list<std::unique_ptr<NameValueAssign> > Parser::OptimizeTableStmt::options_

private

Definition at line 1283 of file ParserNode.h.

Referenced by OptimizeTableStmt(), and shouldVacuumDeletedRows().

std::unique_ptr<std::string> Parser::OptimizeTableStmt::table_

private

Definition at line 1282 of file ParserNode.h.

Referenced by execute(), getTableName(), and OptimizeTableStmt().

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The documentation for this class was generated from the following files:

• /home/jenkins-slave/workspace/core-os-doxygen/Parser/ParserNode.h
• /home/jenkins-slave/workspace/core-os-doxygen/Parser/ParserNode.cpp