1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/*-------------------------------------------------------------------------
*
* tlist.h
* prototypes for tlist.c.
*
*
* Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/optimizer/tlist.h
*
*-------------------------------------------------------------------------
*/
#ifndef TLIST_H
#define TLIST_H
#include "nodes/pathnodes.h"
extern TargetEntry *tlist_member(Expr *node, List *targetlist);
extern TargetEntry *tlist_member_ignore_relabel(Expr *node, List *targetlist);
extern List *add_to_flat_tlist(List *tlist, List *exprs);
extern List *get_tlist_exprs(List *tlist, bool includeJunk);
extern bool tlist_same_exprs(List *tlist1, List *tlist2);
extern bool tlist_same_datatypes(List *tlist, List *colTypes, bool junkOK);
extern bool tlist_same_collations(List *tlist, List *colCollations, bool junkOK);
extern void apply_tlist_labeling(List *dest_tlist, List *src_tlist);
extern Oid *extract_grouping_ops(List *groupClause);
extern Oid *extract_grouping_collations(List *groupClause, List *tlist);
extern AttrNumber *extract_grouping_cols(List *groupClause, List *tlist);
extern bool grouping_is_sortable(List *groupClause);
extern bool grouping_is_hashable(List *groupClause);
extern PathTarget *make_pathtarget_from_tlist(List *tlist);
extern List *make_tlist_from_pathtarget(PathTarget *target);
extern PathTarget *copy_pathtarget(PathTarget *src);
extern PathTarget *create_empty_pathtarget(void);
extern void add_column_to_pathtarget(PathTarget *target,
Expr *expr, Index sortgroupref);
extern void add_new_column_to_pathtarget(PathTarget *target, Expr *expr);
extern void add_new_columns_to_pathtarget(PathTarget *target, List *exprs);
extern void apply_pathtarget_labeling_to_tlist(List *tlist, PathTarget *target);
extern void split_pathtarget_at_srfs(PlannerInfo *root,
PathTarget *target, PathTarget *input_target,
List **targets, List **targets_contain_srfs);
/* Convenience macro to get a PathTarget with valid cost/width fields */
#define create_pathtarget(root, tlist) \
set_pathtarget_cost_width(root, make_pathtarget_from_tlist(tlist))
#endif /* TLIST_H */
|
