specifies the content in-memory of a row in the column metadata table More...

#include <ColumnDescriptor.h>

Collaboration diagram for ColumnDescriptor:

Public Member Functions
	ColumnDescriptor ()

	ColumnDescriptor (const int tableId, const int columnId, const std::string &columnName, const SQLTypeInfo columnType, int32_t db_id)

	ColumnDescriptor (const bool isGeoPhyCol)

std::string	toString () const

std::string	getDefaultValueLiteral () const

Public Attributes
int	tableId

int	columnId

std::string	columnName

std::string	sourceName

SQLTypeInfo	columnType

std::string	chunks

bool	isSystemCol

bool	isVirtualCol

std::string	virtualExpr

bool	isDeletedCol

bool	isGeoPhyCol {false}

std::optional< std::string >	default_value

int32_t	db_id

Detailed Description

specifies the content in-memory of a row in the column metadata table

ColumnDescriptor

Definition at line 33 of file ColumnDescriptor.h.

Constructor & Destructor Documentation

ColumnDescriptor::ColumnDescriptor ( )

inline

Definition at line 48 of file ColumnDescriptor.h.

48 : isSystemCol(false), isVirtualCol(false), isDeletedCol(false) {}

ColumnDescriptor::isVirtualCol

bool isVirtualCol

Definition: ColumnDescriptor.h:41

ColumnDescriptor::isSystemCol

bool isSystemCol

Definition: ColumnDescriptor.h:40

ColumnDescriptor::isDeletedCol

bool isDeletedCol

Definition: ColumnDescriptor.h:43

ColumnDescriptor::ColumnDescriptor	(	const int	tableId,
		const int	columnId,
		const std::string &	columnName,
		const SQLTypeInfo	columnType,
		int32_t	db_id
	)

inline

Definition at line 49 of file ColumnDescriptor.h.

       : tableId(tableId)
       , columnId(columnId)
       , columnName(columnName)
       , sourceName(columnName)
       , columnType(columnType)
       , isSystemCol(false)
       , isVirtualCol(false)
       , isDeletedCol(false)
       , db_id(db_id) {}

ColumnDescriptor::ColumnDescriptor ( const bool isGeoPhyCol )

inline

Definition at line 63 of file ColumnDescriptor.h.

References isGeoPhyCol.

                                            : ColumnDescriptor() {
     this->isGeoPhyCol = isGeoPhyCol;
   }

Member Function Documentation

std::string ColumnDescriptor::getDefaultValueLiteral ( ) const

inline

Definition at line 76 of file ColumnDescriptor.h.

References CHECK, columnType, default_value, SQLTypeInfo::get_subtype(), SQLTypeInfo::is_array(), is_datetime(), SQLTypeInfo::is_geometry(), SQLTypeInfo::is_string(), SQLTypeInfo::is_string_array(), SQLTypeInfo::is_time(), and split().

Referenced by Catalog_Namespace::Catalog::dumpCreateTableUnlocked(), Catalog_Namespace::Catalog::dumpSchema(), and DBHandler::populateThriftColumnType().

                                            {
     // some preprocessing of strings, arrays and especially arrays of strings
     CHECK(default_value.has_value());
     if (columnType.is_string() || columnType.is_geometry() || columnType.is_time()) {
       return "\'" + default_value.value() + "\'";
     } else if (columnType.is_array()) {
       auto value = default_value.value();
       CHECK(value.front() == '{' && value.back() == '}');
       value = value.substr(1, value.length() - 2);
       if (columnType.is_string_array() || is_datetime(columnType.get_subtype())) {
         auto elements = split(value, ", ");
         value = "ARRAY[";
         for (size_t i = 0; i < elements.size(); ++i) {
           value += "'" + elements[i] + "'";
           if (i != elements.size() - 1) {
             value += ", ";
           }
         }
         value += "]";
       } else {
         value = "ARRAY[" + value + "]";
       }
       return value;
     } else {
       return default_value.value();
     }
   }

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std::string ColumnDescriptor::toString ( ) const

inline

Definition at line 67 of file ColumnDescriptor.h.

References columnId, columnName, columnType, db_id, default_value, tableId, and typeName().

                              {
     return ::typeName(this) + "(tableId=" + ::toString(tableId) +
            ", columnId=" + ::toString(columnId) +
            ", columnName=" + ::toString(columnName) +
            ", columnType=" + ::toString(columnType) +
            ", defaultValue=" + ::toString(default_value) +
            ", db_id=" + ::toString(db_id) + ")";
   }