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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
commit | 6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch) | |
tree | 657d8194422a5daccecfd42d654b8a245ef7b4c8 /src/include/parser/parsetree.h | |
parent | Initial commit. (diff) | |
download | postgresql-13-6eb9c5a5657d1fe77b55cc261450f3538d35a94d.tar.xz postgresql-13-6eb9c5a5657d1fe77b55cc261450f3538d35a94d.zip |
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/include/parser/parsetree.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/include/parser/parsetree.h b/src/include/parser/parsetree.h new file mode 100644 index 0000000..3ed5862 --- /dev/null +++ b/src/include/parser/parsetree.h @@ -0,0 +1,61 @@ +/*------------------------------------------------------------------------- + * + * parsetree.h + * Routines to access various components and subcomponents of + * parse trees. + * + * + * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/parser/parsetree.h + * + *------------------------------------------------------------------------- + */ +#ifndef PARSETREE_H +#define PARSETREE_H + +#include "nodes/parsenodes.h" + + +/* ---------------- + * range table operations + * ---------------- + */ + +/* + * rt_fetch + * + * NB: this will crash and burn if handed an out-of-range RT index + */ +#define rt_fetch(rangetable_index, rangetable) \ + ((RangeTblEntry *) list_nth(rangetable, (rangetable_index)-1)) + +/* + * Given an RTE and an attribute number, return the appropriate + * variable name or alias for that attribute of that RTE. + */ +extern char *get_rte_attribute_name(RangeTblEntry *rte, AttrNumber attnum); + +/* + * Check whether an attribute of an RTE has been dropped + */ +extern bool get_rte_attribute_is_dropped(RangeTblEntry *rte, + AttrNumber attnum); + + +/* ---------------- + * target list operations + * ---------------- + */ + +extern TargetEntry *get_tle_by_resno(List *tlist, AttrNumber resno); + +/* ---------------- + * FOR UPDATE/SHARE info + * ---------------- + */ + +extern RowMarkClause *get_parse_rowmark(Query *qry, Index rtindex); + +#endif /* PARSETREE_H */ |