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Rewrite parser's handling of INSERT ... SELECT so that processing

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of the SELECT part of the statement is just like a plain SELECT.  All
INSERT-specific processing happens after the SELECT parsing is done.
This eliminates many problems, e.g. INSERT ... SELECT ... GROUP BY using
the wrong column labels.  Ensure that DEFAULT clauses are coerced to
the target column type, whether or not stored clause produces the right
type.  Substantial cleanup of parser's array support.
This commit is contained in:
Tom Lane
1999-07-19 00:26:20 +00:00
parent c981442772
commit 7f76eab140
12 changed files with 877 additions and 1339 deletions
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8
src/include/parser/parse_expr.h
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@ -1,12 +1,12 @@
/*-------------------------------------------------------------------------
*
* parse_exer.h
* parse_expr.h
*
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: parse_expr.h,v 1.13 1999/07/15 23:04:02 momjian Exp $
* $Id: parse_expr.h,v 1.14 1999/07/19 00:26:16 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -16,8 +16,12 @@
#include "parser/parse_node.h"
#include "parser/parse_type.h"
#define EXPR_COLUMN_FIRST 1
#define EXPR_RELATION_FIRST 2
extern Node *transformExpr(ParseState *pstate, Node *expr, int precedence);
extern Oid exprType(Node *expr);
extern int32 exprTypmod(Node *expr);
extern Node *parser_typecast2(Node *expr, Oid exprType, Type tp, int32 attypmod);
#endif /* PARSE_EXPR_H */