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eab6b8b27e
useless substructure for its RangeTblEntry nodes. (I chose to keep using the same struct node type and just zero out the link fields for unneeded info, rather than making a separate ExecRangeTblEntry type --- it seemed too fragile to have two different rangetable representations.) Along the way, put subplans into a list in the toplevel PlannedStmt node, and have SubPlan nodes refer to them by list index instead of direct pointers. Vadim wanted to do that years ago, but I never understood what he was on about until now. It makes things a *whole* lot more robust, because we can stop worrying about duplicate processing of subplans during expression tree traversals. That's been a constant source of bugs, and it's finally gone. There are some consequent simplifications yet to be made, like not using a separate EState for subplans in the executor, but I'll tackle that later.
35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* print.h
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* definitions for nodes/print.c
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*
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*
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* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/nodes/print.h,v 1.27 2007/02/22 22:00:25 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PRINT_H
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#define PRINT_H
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#include "nodes/parsenodes.h"
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#include "nodes/execnodes.h"
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#define nodeDisplay(x) pprint(x)
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extern void print(void *obj);
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extern void pprint(void *obj);
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extern void elog_node_display(int lev, const char *title,
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void *obj, bool pretty);
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extern char *format_node_dump(const char *dump);
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extern char *pretty_format_node_dump(const char *dump);
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extern void print_rt(List *rtable);
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extern void print_expr(Node *expr, List *rtable);
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extern void print_pathkeys(List *pathkeys, List *rtable);
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extern void print_tl(List *tlist, List *rtable);
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extern void print_slot(TupleTableSlot *slot);
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#endif /* PRINT_H */
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