Parser::RenameColumnStmt Class Reference

#include <ParserNode.h>

Inheritance diagram for Parser::RenameColumnStmt:

Collaboration diagram for Parser::RenameColumnStmt:

Public Member Functions
	RenameColumnStmt (std::string *tab, std::string *col, std::string *new_col_name)
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::unique_ptr< std::string >	column_
std::unique_ptr< std::string >	new_column_name_

Detailed Description

Definition at line 1358 of file ParserNode.h.

Constructor & Destructor Documentation

Parser::RenameColumnStmt::RenameColumnStmt ( std::string *  tab, std::string *  col, std::string *  new_col_name  )

inline

Definition at line 1360 of file ParserNode.h.

      : table_(tab), column_(col), new_column_name_(new_col_name) {}

Member Function Documentation

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

overridevirtual

Implements Parser::DDLStmt.

Definition at line 5269 of file ParserNode.cpp.

References CHECK, Parser::check_alter_table_privilege(), column_, legacylockmgr::ExecutorOuterLock, Catalog_Namespace::SessionInfo::getCatalog(), Catalog_Namespace::Catalog::getMetadataForColumn(), legacylockmgr::LockMgr< MutexType, KeyType >::getMutex(), new_column_name_, Catalog_Namespace::Catalog::renameColumn(), ddl_utils::TABLE, table_, TableDescriptor::tableId, and ddl_utils::validate_table_type().

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

                                                    {
  if (read_only_mode) {
    throw std::runtime_error("RENAME COLUMN 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_, false);
  const auto td = td_with_lock();
  CHECK(td);
  validate_table_type(td, ddl_utils::TableType::TABLE, "ALTER");

  check_alter_table_privilege(session, td);
  const ColumnDescriptor* cd = catalog.getMetadataForColumn(td->tableId, *column_);
  if (cd == nullptr) {
    throw std::runtime_error("Column " + *column_ + " does not exist.");
  }
  if (catalog.getMetadataForColumn(td->tableId, *new_column_name_) != nullptr) {
    throw std::runtime_error("Column " + *new_column_name_ + " already exists.");
  }
  catalog.renameColumn(td, cd, *new_column_name_);
}

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Member Data Documentation

std::unique_ptr<std::string> Parser::RenameColumnStmt::column_

private

Definition at line 1367 of file ParserNode.h.

Referenced by execute().

std::unique_ptr<std::string> Parser::RenameColumnStmt::new_column_name_

private

Definition at line 1368 of file ParserNode.h.

Referenced by execute().

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

private

Definition at line 1366 of file ParserNode.h.

Referenced by 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