Parser::DropDBStmt Class Reference

#include <ParserNode.h>

Inheritance diagram for Parser::DropDBStmt:

Collaboration diagram for Parser::DropDBStmt:

Public Member Functions
	DropDBStmt (const rapidjson::Value &payload)
	DropDBStmt (std::string *n, bool i)
auto const &	getDatabaseName ()
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 >	db_name_
bool	if_exists_

Detailed Description

Definition at line 1953 of file ParserNode.h.

Constructor & Destructor Documentation

Parser::DropDBStmt::DropDBStmt

(

const rapidjson::Value &

payload

)

Definition at line 6597 of file ParserNode.cpp.

References CHECK, db_name_, if_exists_, json_bool(), and json_str().

                                                    {
  CHECK(payload.HasMember("name"));
  db_name_ = std::make_unique<std::string>(json_str(payload["name"]));

  if_exists_ = false;
  if (payload.HasMember("ifExists")) {
    if_exists_ = json_bool(payload["ifExists"]);
  }
}

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Parser::DropDBStmt::DropDBStmt ( std::string *  n, bool  i  )

inlineexplicit

Definition at line 1957 of file ParserNode.h.

: db_name_(n), if_exists_(i) {}

Member Function Documentation

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

overridevirtual

Implements Parser::DDLStmt.

Definition at line 6607 of file ParserNode.cpp.

References db_name_, legacylockmgr::ExecutorOuterLock, Catalog_Namespace::SessionInfo::get_currentUser(), legacylockmgr::LockMgr< MutexType, KeyType >::getMutex(), if_exists_, Catalog_Namespace::UserMetadata::isSuper, and Catalog_Namespace::UserMetadata::userId.

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

                                              {
  if (read_only_mode) {
    throw std::runtime_error("DROP DATABASE invalid in read only mode.");
  }
  const auto execute_write_lock =
      heavyai::unique_lock<legacylockmgr::WrapperType<heavyai::shared_mutex>>(
          *legacylockmgr::LockMgr<heavyai::shared_mutex, bool>::getMutex(
              legacylockmgr::ExecutorOuterLock, true));

  Catalog_Namespace::DBMetadata db;
  if (!SysCatalog::instance().getMetadataForDB(*db_name_, db)) {
    if (if_exists_) {
      return;
    }
    throw std::runtime_error("Database " + *db_name_ + " does not exist.");
  }

  if (!session.get_currentUser().isSuper &&
      session.get_currentUser().userId != db.dbOwner) {
    throw std::runtime_error(
        "DROP DATABASE command can only be executed by the owner or by a super "
        "user.");
  }

  SysCatalog::instance().dropDatabase(db);
}

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auto const& Parser::DropDBStmt::getDatabaseName ( )

inline

Definition at line 1958 of file ParserNode.h.

References db_name_.

{ return db_name_; }

Member Data Documentation

std::unique_ptr<std::string> Parser::DropDBStmt::db_name_

private

Definition at line 1963 of file ParserNode.h.

Referenced by DropDBStmt(), execute(), and getDatabaseName().

bool Parser::DropDBStmt::if_exists_

private

Definition at line 1964 of file ParserNode.h.

Referenced by DropDBStmt(), and execute().

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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