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Carry column aliases from the parser frontend. Enables queries like

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SELECT a FROM t1 tx (a);
Allow join syntax, including queries like
  SELECT * FROM t1 NATURAL JOIN t2;
Update RTE structure to hold column aliases in an Attr structure.
This commit is contained in:
Thomas G. Lockhart
2000-02-15 03:38:29 +00:00
parent 92c8437d8d
commit a344a6e7b5
27 changed files with 1102 additions and 324 deletions
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21
src/include/parser/parse_relation.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: parse_relation.h,v 1.14 2000/01/26 05:58:27 momjian Exp $
* $Id: parse_relation.h,v 1.15 2000/02/15 03:38:29 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@ -18,17 +18,20 @@
extern RangeTblEntry *refnameRangeTableEntry(ParseState *pstate, char *refname);
extern int refnameRangeTablePosn(ParseState *pstate,
char *refname, int *sublevels_up);
char *refname,
int *sublevels_up);
extern RangeTblEntry *colnameRangeTableEntry(ParseState *pstate, char *colname);
extern RangeTblEntry *addRangeTableEntry(ParseState *pstate,
char *relname,
char *refname,
bool inh,
bool inFromCl,
bool inJoinSet);
extern List *expandAll(ParseState *pstate, char *relname, char *refname,
int *this_resno);
char *relname,
Attr *ref,
bool inh,
bool inFromCl,
bool inJoinSet);
extern Attr *expandTable(ParseState *pstate, char *refname, bool getaliases);
extern List *expandAll(ParseState *pstate, char *relname, Attr *ref,
int *this_resno);
extern int attnameAttNum(Relation rd, char *a);
extern int specialAttNum(char *a);
extern bool attnameIsSet(Relation rd, char *name);
extern int attnumAttNelems(Relation rd, int attid);
extern Oid attnumTypeId(Relation rd, int attid);