Vertica::ServerInterface::RelationDescription Struct Reference

Collaboration diagram for Vertica::ServerInterface::RelationDescription:

Public Types
enum	RelDerivationType {   RDT_NONE, RDT_PROJECTION, RDT_AGGREGATE, RDT_TOPK,   RDT_UDT, RDT_INDEX, RDT_FLEX_KEYS }

Public Attributes
std::string	additionalDerivationInfo
std::vector< int >	baseAttrIdx
Oid	baseRelation
std::vector< std::string >	colNames
std::vector< bool >	colRLE
std::vector< VerticaType >	colTypes
std::string	databaseName
std::vector< Oid >	derivationFunctions
bool	isExternal
bool	isFlex
bool	isSystem
bool	isTemp
bool	isUpToDate
int	nSortedCols
std::vector< int >	partitionCols
std::vector< int >	pkCols
std::set< std::string >	presentOnNodeNames
std::set< Oid >	presentOnNodes
std::string	relationName
Oid	relationOid
enum Vertica::ServerInterface::RelationDescription::RelDerivationType	relDerivationType
std::string	schemaName
std::vector< int >	segCols
int	segOffset
std::vector< int >	tabColMapping

Detailed Description

Structure to describe the name and properties of a table or projection, It is to be used in the methods below.

Member Enumeration Documentation

RelDerivationType

enum Vertica::ServerInterface::RelationDescription::RelDerivationType

Is aggregate, index, etc

Member Data Documentation

additionalDerivationInfo

std::string Vertica::ServerInterface::RelationDescription::additionalDerivationInfo

Further description of derivation

baseAttrIdx

std::vector<int> Vertica::ServerInterface::RelationDescription::baseAttrIdx

Columns in base that participate in derivation

baseRelation

Oid Vertica::ServerInterface::RelationDescription::baseRelation

Derivation from a base object (table/projection)

colNames

std::vector<std::string> Vertica::ServerInterface::RelationDescription::colNames

Column names

colRLE

std::vector<bool> Vertica::ServerInterface::RelationDescription::colRLE

For projections, indictor if encoding is run-optimized

colTypes

std::vector<VerticaType> Vertica::ServerInterface::RelationDescription::colTypes

Column types

databaseName

std::string Vertica::ServerInterface::RelationDescription::databaseName

Database name

derivationFunctions

std::vector<Oid> Vertica::ServerInterface::RelationDescription::derivationFunctions

Derivation function, for UDT proj, etc.

isExternal

bool Vertica::ServerInterface::RelationDescription::isExternal

Is for external table?

isFlex

bool Vertica::ServerInterface::RelationDescription::isFlex

Is this a flex object

isSystem

bool Vertica::ServerInterface::RelationDescription::isSystem

Is this a system object

isTemp

bool Vertica::ServerInterface::RelationDescription::isTemp

Is for a temp table?

isUpToDate

bool Vertica::ServerInterface::RelationDescription::isUpToDate

Is this up to date / active

nSortedCols

int Vertica::ServerInterface::RelationDescription::nSortedCols

For projections, number of columns in sort order, as a prefix

partitionCols

std::vector<int> Vertica::ServerInterface::RelationDescription::partitionCols

For tables / projections, columns involved in partitioning

pkCols

std::vector<int> Vertica::ServerInterface::RelationDescription::pkCols

For tables / projections, columns involved in a primary key

presentOnNodeNames

std::set<std::string> Vertica::ServerInterface::RelationDescription::presentOnNodeNames

For projections, hosting node names

presentOnNodes

std::set<Oid> Vertica::ServerInterface::RelationDescription::presentOnNodes

For projections, hosting nodes

relationName

std::string Vertica::ServerInterface::RelationDescription::relationName

Table name, projection basename, or projection name

relationOid

Oid Vertica::ServerInterface::RelationDescription::relationOid

Relation OID, for lookups if this is nonzero it takes precedence

schemaName

std::string Vertica::ServerInterface::RelationDescription::schemaName

Schema name; on lookup if empty the search path will be consulted

segCols

std::vector<int> Vertica::ServerInterface::RelationDescription::segCols

For projections, columns involved in segmentation

segOffset

int Vertica::ServerInterface::RelationDescription::segOffset

For buddies, segmentation offset

tabColMapping

std::vector<int> Vertica::ServerInterface::RelationDescription::tabColMapping

For projections, mapping to table column number (0-based); negative numbers would indicate things that are not present in the table