enum_query_type.h File Reference

Go to the source code of this file.

Enumerations
enum	enum_query_type {   QT_ORDINARY = 0 , QT_TO_SYSTEM_CHARSET = (1 << 0) , QT_WITHOUT_INTRODUCERS = (1 << 1) , QT_FORCE_INTRODUCERS = (1 << 2) ,   QT_SHOW_SELECT_NUMBER = (1 << 3) , QT_NO_DEFAULT_DB = (1 << 4) , QT_DERIVED_TABLE_ONLY_ALIAS = (1 << 5) , QT_TO_ARGUMENT_CHARSET = (1 << 6) ,   QT_NO_DB = (1 << 7) , QT_NO_TABLE = (1 << 8) , QT_NORMALIZED_FORMAT = (1 << 9) , QT_NO_DATA_EXPANSION = (1 << 10) ,   QT_IGNORE_QB_NAME = (1 << 11) , QT_ONLY_QB_NAME = (1 << 12) , QT_SUBSELECT_AS_ONLY_SELECT_NUMBER = (1 << 13) , QT_HIDE_ROLLUP_FUNCTIONS = (1 << 14) }
	Query type constants (usable as bitmap flags). More...

Enumeration Type Documentation

enum_query_type

enum enum_query_type

Query type constants (usable as bitmap flags).

Enumerator
QT_ORDINARY	Nothing specific, ordinary SQL query.
QT_TO_SYSTEM_CHARSET	In utf8.
QT_WITHOUT_INTRODUCERS	Without character set introducers.
QT_FORCE_INTRODUCERS	Causes string literals to always be printed with character set introducers. Takes precedence over QT_WITHOUT_INTRODUCERS.
QT_SHOW_SELECT_NUMBER	When printing a SELECT, add its number (query_block->number).
QT_NO_DEFAULT_DB	Don't print a database if it's equal to the connection's database.
QT_DERIVED_TABLE_ONLY_ALIAS	When printing a derived table, don't print its expression, only alias.
QT_TO_ARGUMENT_CHARSET	Print in charset of Item::print() argument (typically thd->charset()).
QT_NO_DB	Print identifiers without database's name.
QT_NO_TABLE	Print identifiers without table's name.
QT_NORMALIZED_FORMAT	Change all Item_basic_constant to ? (used by query rewrite to compute digest.) Un-resolved hints will also be printed in this format.
QT_NO_DATA_EXPANSION	If an expression is constant, print the expression, not the value it evaluates to. Should be used for error messages, so that they don't reveal values.
QT_IGNORE_QB_NAME	Don't print the QB name. Used for the INSERT part of an INSERT...SELECT.
QT_ONLY_QB_NAME	Print only the QB name. Used for the SELECT part of an INSERT...SELECT.
QT_SUBSELECT_AS_ONLY_SELECT_NUMBER	When printing subselects, print only the select number (like QT_SHOW_SELECT_NUMBER), not the actual subselect text.
QT_HIDE_ROLLUP_FUNCTIONS	Suppress the internal rollup functions used for switching items to NULL or between different sums; these are different from most other internal Items we insert, since they are inserted during resolving and not optimization. Used when getting the canonical representation of a view.