qo_term Struct Reference

#include <query_graph.h>

Collaboration diagram for qo_term:

Public Attributes
QO_ENV *	env
BITSET	nodes
BITSET	segments
double	selectivity
QO_TERMCLASS	term_class
int	rank
PT_NODE *	pt_expr
BITSET	subqueries
JOIN_TYPE	join_type
int	can_use_index
QO_SEGMENT *	index_seg [2]
QO_SEGMENT *	seg
QO_SEGMENT *	oid_seg
QO_NODE *	head
QO_NODE *	tail
QO_EQCLASS *	eqclass
QO_SEGMENT *	nominal_seg
int	flag
int	idx
short	location
int *	multi_col_segs
int	multi_col_cnt

Detailed Description

Definition at line 588 of file query_graph.h.

Member Data Documentation

int qo_term::can_use_index

Definition at line 663 of file query_graph.h.

Referenced by qo_check_terms_for_multiple_range_opt(), qo_discover_indexes(), qo_exchange(), qo_find_index_seg_terms(), qo_generate_join_index_scan(), qo_get_xasl_index_info(), qo_index_scan_new(), and qo_is_pk_fk_full_join().

QO_ENV* qo_term::env

Definition at line 599 of file query_graph.h.

Referenced by qo_analyze_term().

QO_EQCLASS* qo_term::eqclass

Definition at line 686 of file query_graph.h.

Referenced by qo_exchange().

int qo_term::flag

Definition at line 689 of file query_graph.h.

Referenced by qo_exchange().

QO_NODE* qo_term::head

Definition at line 682 of file query_graph.h.

Referenced by qo_exchange().

int qo_term::idx

Definition at line 695 of file query_graph.h.

QO_SEGMENT* qo_term::index_seg[2]

Definition at line 664 of file query_graph.h.

Referenced by qo_analyze_term(), qo_check_terms_for_multiple_range_opt(), qo_discover_indexes(), qo_exchange(), qo_generate_join_index_scan(), and qo_get_xasl_index_info().

JOIN_TYPE qo_term::join_type

Definition at line 652 of file query_graph.h.

Referenced by qo_exchange().

short qo_term::location

Definition at line 697 of file query_graph.h.

Referenced by qo_exchange().

int qo_term::multi_col_cnt

Definition at line 704 of file query_graph.h.

Referenced by qo_exchange(), qo_generate_join_index_scan(), and qo_get_xasl_index_info().

int* qo_term::multi_col_segs

Definition at line 703 of file query_graph.h.

Referenced by qo_analyze_term(), qo_exchange(), qo_generate_join_index_scan(), and qo_get_xasl_index_info().

BITSET qo_term::nodes

Definition at line 608 of file query_graph.h.

Referenced by qo_check_subplan_join_cond_for_multi_range_opt(), and qo_exchange().

QO_SEGMENT* qo_term::nominal_seg

Definition at line 687 of file query_graph.h.

Referenced by qo_exchange().

QO_SEGMENT* qo_term::oid_seg

Definition at line 672 of file query_graph.h.

Referenced by qo_exchange().

PT_NODE* qo_term::pt_expr

Definition at line 641 of file query_graph.h.

Referenced by qo_exchange().

int qo_term::rank

Definition at line 634 of file query_graph.h.

Referenced by qo_exchange().

QO_SEGMENT* qo_term::seg

Definition at line 671 of file query_graph.h.

Referenced by qo_exchange().

BITSET qo_term::segments

Definition at line 614 of file query_graph.h.

Referenced by gen_outer(), qo_check_subplan_join_cond_for_multi_range_opt(), qo_check_subqueries_for_multi_range_opt(), qo_check_terms_for_multiple_range_opt(), and qo_exchange().

double qo_term::selectivity

Definition at line 623 of file query_graph.h.

Referenced by qo_exchange().

BITSET qo_term::subqueries

Definition at line 646 of file query_graph.h.

Referenced by qo_exchange().

QO_NODE* qo_term::tail

Definition at line 683 of file query_graph.h.

Referenced by qo_examine_follow(), and qo_exchange().

QO_TERMCLASS qo_term::term_class

Definition at line 629 of file query_graph.h.

Referenced by qo_exchange().

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The documentation for this struct was generated from the following file:

• src/optimizer/query_graph.h