mirror of
https://github.com/postgres/postgres.git
synced 2025-05-29 00:03:09 -04:00
Revise quoting conventions in outfuncs/readfuncs so that nodeRead doesn't
choke on relation or attribute names containing spaces, quotes, or other special characters. This fixes a TODO item. It also forces initdb, since stored rule strings change.
This commit is contained in:
Tom Lane
parent
46a28f1b14
commit
338fd40bfc
@ -5,7 +5,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: outfuncs.c,v 1.101 2000/01/09 00:26:23 tgl Exp $
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* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.102 2000/01/14 00:53:21 tgl Exp $
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*
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* NOTES
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* Every (plan) node in POSTGRES has an associated "out" routine which
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@ -19,8 +19,10 @@
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* representation plus some other information (string length, etc.)
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*
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*/
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#include <ctype.h>
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#include "postgres.h"
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#include "access/heapam.h"
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#include "access/htup.h"
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#include "catalog/pg_type.h"
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@ -42,9 +44,43 @@
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static void _outDatum(StringInfo str, Datum value, Oid type);
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static void _outNode(StringInfo str, void *obj);
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/* Convert a null string pointer into "<>" */
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#define stringStringInfo(s) (((s) == NULL) ? "<>" : (s))
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/*
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* _outToken
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* Convert an ordinary string (eg, an identifier) into a form that
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* will be decoded back to a plain token by read.c's functions.
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*
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* If a null or empty string is given, it is encoded as "<>".
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*/
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static void
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_outToken(StringInfo str, char *s)
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{
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if (s == NULL || *s == '\0')
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{
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appendStringInfo(str, "<>");
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return;
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}
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/*
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* Look for characters or patterns that are treated specially by
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* read.c (either in lsptok() or in nodeRead()), and therefore need
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* a protective backslash.
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*/
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/* These characters only need to be quoted at the start of the string */
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if (*s == '<' ||
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*s == '\"' ||
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*s == '@' ||
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isdigit(*s) ||
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(*s == '-' && isdigit(s[1])))
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appendStringInfoChar(str, '\\');
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while (*s)
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{
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/* These chars must be backslashed anywhere in the string */
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if (*s == ' ' || *s == '\n' || *s == '\t' ||
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*s == '(' || *s == ')' || *s == '{' || *s == '}' ||
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*s == '\\')
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appendStringInfoChar(str, '\\');
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appendStringInfoChar(str, *s++);
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}
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}
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/*
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* _outIntList -
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@ -55,17 +91,17 @@ _outIntList(StringInfo str, List *list)
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{
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List *l;
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appendStringInfo(str, "(");
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appendStringInfoChar(str, '(');
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foreach(l, list)
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appendStringInfo(str, " %d ", lfirsti(l));
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appendStringInfo(str, ")");
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appendStringInfo(str, " %d", lfirsti(l));
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appendStringInfoChar(str, ')');
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}
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static void
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_outCreateStmt(StringInfo str, CreateStmt *node)
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{
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appendStringInfo(str, " CREATE :relname %s ",
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stringStringInfo(node->relname));
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appendStringInfo(str, " CREATE :relname ");
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_outToken(str, node->relname);
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appendStringInfo(str, " :istemp %s ",
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node->istemp ? "true" : "false");
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@ -83,11 +119,13 @@ _outCreateStmt(StringInfo str, CreateStmt *node)
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static void
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_outIndexStmt(StringInfo str, IndexStmt *node)
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{
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appendStringInfo(str,
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" INDEX :idxname %s :relname %s :accessMethod %s :indexParams ",
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stringStringInfo(node->idxname),
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stringStringInfo(node->relname),
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stringStringInfo(node->accessMethod));
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appendStringInfo(str, " INDEX :idxname ");
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_outToken(str, node->idxname);
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appendStringInfo(str, " :relname ");
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_outToken(str, node->relname);
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appendStringInfo(str, " :accessMethod ");
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_outToken(str, node->accessMethod);
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appendStringInfo(str, " :indexParams ");
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_outNode(str, node->indexParams);
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appendStringInfo(str, " :withClause ");
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@ -114,8 +152,9 @@ _outSelectStmt(StringInfo str, SelectStmt *node)
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static void
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_outFuncCall(StringInfo str, FuncCall *node)
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{
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appendStringInfo(str, "FUNCTION %s :args ",
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stringStringInfo(node->funcname));
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appendStringInfo(str, "FUNCTION ");
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_outToken(str, node->funcname);
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appendStringInfo(str, " :args ");
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_outNode(str, node->args);
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appendStringInfo(str, " :agg_star %s :agg_distinct %s ",
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node->agg_star ? "true" : "false",
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@ -125,40 +164,42 @@ _outFuncCall(StringInfo str, FuncCall *node)
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static void
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_outColumnDef(StringInfo str, ColumnDef *node)
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{
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appendStringInfo(str, " COLUMNDEF :colname %s :typename ",
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stringStringInfo(node->colname));
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appendStringInfo(str, " COLUMNDEF :colname ");
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_outToken(str, node->colname);
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appendStringInfo(str, " :typename ");
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_outNode(str, node->typename);
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appendStringInfo(str, " :is_not_null %s :is_sequence %s :raw_default ",
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node->is_not_null ? "true" : "false",
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node->is_sequence ? "true" : "false");
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_outNode(str, node->raw_default);
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appendStringInfo(str, " :cooked_default %s :constraints ",
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stringStringInfo(node->cooked_default));
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appendStringInfo(str, " :cooked_default ");
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_outToken(str, node->cooked_default);
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appendStringInfo(str, " :constraints ");
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_outNode(str, node->constraints);
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}
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static void
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_outTypeName(StringInfo str, TypeName *node)
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{
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appendStringInfo(str,
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" TYPENAME :name %s :timezone %s :setof %s typmod %d :arrayBounds ",
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stringStringInfo(node->name),
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appendStringInfo(str, " TYPENAME :name ");
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_outToken(str, node->name);
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appendStringInfo(str, " :timezone %s :setof %s typmod %d :arrayBounds ",
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node->timezone ? "true" : "false",
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node->setof ? "true" : "false",
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node->typmod);
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appendStringInfo(str, " :arrayBounds ");
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_outNode(str, node->arrayBounds);
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}
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static void
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_outIndexElem(StringInfo str, IndexElem *node)
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{
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appendStringInfo(str, " INDEXELEM :name %s :args ",
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stringStringInfo(node->name));
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appendStringInfo(str, " INDEXELEM :name ");
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_outToken(str, node->name);
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appendStringInfo(str, " :args ");
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_outNode(str, node->args);
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appendStringInfo(str, " :class %s :typename ", stringStringInfo(node->class));
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appendStringInfo(str, " :class ");
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_outToken(str, node->class);
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appendStringInfo(str, " :typename ");
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_outNode(str, node->typename);
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}
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@ -173,21 +214,24 @@ _outQuery(StringInfo str, Query *node)
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switch (nodeTag(node->utilityStmt))
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{
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case T_CreateStmt:
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appendStringInfo(str, " :create %s ",
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stringStringInfo(((CreateStmt *) (node->utilityStmt))->relname));
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appendStringInfo(str, " :create ");
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_outToken(str, ((CreateStmt *) (node->utilityStmt))->relname);
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appendStringInfo(str, " ");
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_outNode(str, node->utilityStmt);
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break;
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case T_IndexStmt:
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appendStringInfo(str, " :index %s on %s ",
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stringStringInfo(((IndexStmt *) (node->utilityStmt))->idxname),
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stringStringInfo(((IndexStmt *) (node->utilityStmt))->relname));
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appendStringInfo(str, " :index ");
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_outToken(str, ((IndexStmt *) (node->utilityStmt))->idxname);
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appendStringInfo(str, " on ");
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_outToken(str, ((IndexStmt *) (node->utilityStmt))->relname);
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appendStringInfo(str, " ");
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_outNode(str, node->utilityStmt);
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break;
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case T_NotifyStmt:
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appendStringInfo(str, " :utility %s ",
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stringStringInfo(((NotifyStmt *) (node->utilityStmt))->relname));
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appendStringInfo(str, " :utility ");
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_outToken(str, ((NotifyStmt *) (node->utilityStmt))->relname);
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break;
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default:
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@ -197,17 +241,18 @@ _outQuery(StringInfo str, Query *node)
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else
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appendStringInfo(str, " :utility <>");
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appendStringInfo(str, " :resultRelation %u :into ",
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node->resultRelation);
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_outToken(str, node->into);
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appendStringInfo(str,
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" :resultRelation %u :into %s :isPortal %s :isBinary %s :isTemp %s :unionall %s ",
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node->resultRelation,
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stringStringInfo(node->into),
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" :isPortal %s :isBinary %s :isTemp %s :unionall %s :unique ",
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node->isPortal ? "true" : "false",
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node->isBinary ? "true" : "false",
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node->isTemp ? "true" : "false",
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node->unionall ? "true" : "false");
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appendStringInfo(str, " :unique %s :sortClause ",
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stringStringInfo(node->uniqueFlag));
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_outToken(str, node->uniqueFlag);
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appendStringInfo(str, " :sortClause ");
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_outNode(str, node->sortClause);
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appendStringInfo(str, " :rtable ");
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@ -560,17 +605,15 @@ _outHash(StringInfo str, Hash *node)
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static void
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_outResdom(StringInfo str, Resdom *node)
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{
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appendStringInfo(str, " RESDOM :resno %d :restype %u :restypmod %d",
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appendStringInfo(str,
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" RESDOM :resno %d :restype %u :restypmod %d :resname ",
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node->resno,
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node->restype,
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node->restypmod);
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appendStringInfo(str, " :resname \"%s\" :reskey %d :reskeyop %u",
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stringStringInfo(node->resname),
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_outToken(str, node->resname);
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appendStringInfo(str, " :reskey %d :reskeyop %u :ressortgroupref %d :resjunk %s ",
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node->reskey,
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node->reskeyop);
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appendStringInfo(str, " :ressortgroupref %d :resjunk %s ",
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node->reskeyop,
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node->ressortgroupref,
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node->resjunk ? "true" : "false");
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}
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@ -626,7 +669,9 @@ _outExpr(StringInfo str, Expr *node)
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opstr = "subp";
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break;
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}
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appendStringInfo(str, " :opType %s :oper ", stringStringInfo(opstr));
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appendStringInfo(str, " :opType ");
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_outToken(str, opstr);
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appendStringInfo(str, " :oper ");
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_outNode(str, node->oper);
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appendStringInfo(str, " :args ");
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@ -679,9 +724,9 @@ _outConst(StringInfo str, Const *node)
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static void
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_outAggref(StringInfo str, Aggref *node)
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{
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appendStringInfo(str,
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" AGGREG :aggname %s :basetype %u :aggtype %u :target ",
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stringStringInfo(node->aggname),
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appendStringInfo(str, " AGGREG :aggname ");
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_outToken(str, node->aggname);
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appendStringInfo(str, " :basetype %u :aggtype %u :target ",
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node->basetype,
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node->aggtype);
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_outNode(str, node->target);
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@ -801,14 +846,12 @@ _outOper(StringInfo str, Oper *node)
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static void
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_outParam(StringInfo str, Param *node)
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{
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appendStringInfo(str,
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" PARAM :paramkind %d :paramid %d :paramname %s :paramtype %u ",
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appendStringInfo(str, " PARAM :paramkind %d :paramid %d :paramname ",
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node->paramkind,
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node->paramid,
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stringStringInfo(node->paramname),
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node->paramid);
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_outToken(str, node->paramname);
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appendStringInfo(str, " :paramtype %u :param_tlist ",
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node->paramtype);
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appendStringInfo(str, " :param_tlist ");
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_outNode(str, node->param_tlist);
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}
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@ -897,10 +940,12 @@ _outTargetEntry(StringInfo str, TargetEntry *node)
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static void
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_outRangeTblEntry(StringInfo str, RangeTblEntry *node)
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{
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appendStringInfo(str, " RTE :relname ");
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_outToken(str, node->relname);
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appendStringInfo(str, " :refname ");
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_outToken(str, node->refname);
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appendStringInfo(str,
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" RTE :relname %s :refname %s :relid %u :inh %s :inFromCl %s :inJoinSet %s :skipAcl %s",
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stringStringInfo(node->relname),
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stringStringInfo(node->refname),
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" :relid %u :inh %s :inFromCl %s :inJoinSet %s :skipAcl %s",
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node->relid,
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node->inh ? "true" : "false",
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node->inFromCl ? "true" : "false",
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@ -1115,7 +1160,7 @@ _outDatum(StringInfo str, Datum value, Oid type)
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s = (char *) (&value);
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appendStringInfo(str, " %d [ ", length);
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for (i = 0; i < sizeof(Datum); i++)
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appendStringInfo(str, " %d ", (int) (s[i]));
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appendStringInfo(str, "%d ", (int) (s[i]));
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appendStringInfo(str, "] ");
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}
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else
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@ -1134,7 +1179,7 @@ _outDatum(StringInfo str, Datum value, Oid type)
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length = VARSIZE(s);
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appendStringInfo(str, " %d [ ", length);
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for (i = 0; i < length; i++)
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appendStringInfo(str, " %d ", (int) (s[i]));
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appendStringInfo(str, "%d ", (int) (s[i]));
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appendStringInfo(str, "] ");
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}
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}
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@ -1172,27 +1217,27 @@ _outAExpr(StringInfo str, A_Expr *node)
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switch (node->oper)
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{
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case AND:
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appendStringInfo(str, "AND");
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appendStringInfo(str, "AND ");
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break;
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case OR:
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appendStringInfo(str, "OR");
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appendStringInfo(str, "OR ");
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break;
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case NOT:
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appendStringInfo(str, "NOT");
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appendStringInfo(str, "NOT ");
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break;
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case ISNULL:
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appendStringInfo(str, "ISNULL");
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appendStringInfo(str, "ISNULL ");
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break;
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case NOTNULL:
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appendStringInfo(str, "NOTNULL");
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appendStringInfo(str, "NOTNULL ");
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break;
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default:
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appendStringInfo(str, stringStringInfo(node->opname));
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_outToken(str, node->opname);
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appendStringInfo(str, " ");
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break;
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}
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_outNode(str, node->lexpr);
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_outNode(str, node->rexpr);
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return;
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}
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static void
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@ -1200,26 +1245,29 @@ _outValue(StringInfo str, Value *value)
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{
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switch (value->type)
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{
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case T_String:
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appendStringInfo(str, " \"%s\" ", stringStringInfo(value->val.str));
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case T_String:
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appendStringInfo(str, " \"");
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_outToken(str, value->val.str);
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appendStringInfo(str, "\" ");
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break;
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case T_Integer:
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appendStringInfo(str, " %ld ", value->val.ival);
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break;
|
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case T_Float:
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appendStringInfo(str, " %f ", value->val.dval);
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appendStringInfo(str, " %.17g ", value->val.dval);
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break;
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default:
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elog(NOTICE, "_outValue: don't know how to print type %d ",
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value->type);
|
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break;
|
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}
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return;
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}
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static void
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_outIdent(StringInfo str, Ident *node)
|
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{
|
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appendStringInfo(str, " IDENT \"%s\" ", stringStringInfo(node->name));
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return;
|
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appendStringInfo(str, " IDENT ");
|
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_outToken(str, node->name);
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}
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static void
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@ -1227,17 +1275,16 @@ _outAttr(StringInfo str, Attr *node)
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{
|
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List *l;
|
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|
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appendStringInfo(str, " ATTR \"%s\" ", stringStringInfo(node->relname));
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|
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appendStringInfo(str, "(");
|
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appendStringInfo(str, " ATTR ");
|
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_outToken(str, node->relname);
|
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appendStringInfo(str, " (");
|
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foreach(l, node->attrs)
|
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{
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_outNode(str, lfirst(l));
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if (lnext(l))
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appendStringInfo(str, ",");
|
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appendStringInfo(str, " ");
|
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}
|
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appendStringInfo(str, ")");
|
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return;
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}
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|
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static void
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@ -1245,46 +1292,47 @@ _outAConst(StringInfo str, A_Const *node)
|
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{
|
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appendStringInfo(str, "CONST ");
|
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_outValue(str, &(node->val));
|
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return;
|
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}
|
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|
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static void
|
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_outConstraint(StringInfo str, Constraint *node)
|
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{
|
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appendStringInfo(str, " %s :type", stringStringInfo(node->name));
|
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appendStringInfo(str, " ");
|
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_outToken(str, node->name);
|
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appendStringInfo(str, " :type ");
|
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|
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switch (node->contype)
|
||||
{
|
||||
case CONSTR_PRIMARY:
|
||||
appendStringInfo(str, " PRIMARY KEY ");
|
||||
appendStringInfo(str, "PRIMARY KEY ");
|
||||
_outNode(str, node->keys);
|
||||
break;
|
||||
|
||||
case CONSTR_CHECK:
|
||||
appendStringInfo(str, " CHECK :raw ");
|
||||
appendStringInfo(str, "CHECK :raw ");
|
||||
_outNode(str, node->raw_expr);
|
||||
appendStringInfo(str, " :cooked %s ",
|
||||
stringStringInfo(node->cooked_expr));
|
||||
appendStringInfo(str, " :cooked ");
|
||||
_outToken(str, node->cooked_expr);
|
||||
break;
|
||||
|
||||
case CONSTR_DEFAULT:
|
||||
appendStringInfo(str, " DEFAULT :raw ");
|
||||
appendStringInfo(str, "DEFAULT :raw ");
|
||||
_outNode(str, node->raw_expr);
|
||||
appendStringInfo(str, " :cooked %s ",
|
||||
stringStringInfo(node->cooked_expr));
|
||||
appendStringInfo(str, " :cooked ");
|
||||
_outToken(str, node->cooked_expr);
|
||||
break;
|
||||
|
||||
case CONSTR_NOTNULL:
|
||||
appendStringInfo(str, " NOT NULL ");
|
||||
appendStringInfo(str, "NOT NULL");
|
||||
break;
|
||||
|
||||
case CONSTR_UNIQUE:
|
||||
appendStringInfo(str, " UNIQUE ");
|
||||
appendStringInfo(str, "UNIQUE ");
|
||||
_outNode(str, node->keys);
|
||||
break;
|
||||
|
||||
default:
|
||||
appendStringInfo(str, "<unrecognized constraint>");
|
||||
appendStringInfo(str, "<unrecognized_constraint>");
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -1297,8 +1345,6 @@ _outCaseExpr(StringInfo str, CaseExpr *node)
|
||||
|
||||
appendStringInfo(str, " :default ");
|
||||
_outNode(str, node->defresult);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
static void
|
||||
@ -1309,8 +1355,6 @@ _outCaseWhen(StringInfo str, CaseWhen *node)
|
||||
|
||||
appendStringInfo(str, " :then ");
|
||||
_outNode(str, node->result);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
@ -1330,18 +1374,18 @@ _outNode(StringInfo str, void *obj)
|
||||
{
|
||||
List *l;
|
||||
|
||||
appendStringInfo(str, "(");
|
||||
appendStringInfoChar(str, '(');
|
||||
foreach(l, (List *) obj)
|
||||
{
|
||||
_outNode(str, lfirst(l));
|
||||
if (lnext(l))
|
||||
appendStringInfo(str, " ");
|
||||
appendStringInfoChar(str, ' ');
|
||||
}
|
||||
appendStringInfo(str, ")");
|
||||
appendStringInfoChar(str, ')');
|
||||
}
|
||||
else
|
||||
{
|
||||
appendStringInfo(str, "{");
|
||||
appendStringInfoChar(str, '{');
|
||||
switch (nodeTag(obj))
|
||||
{
|
||||
case T_CreateStmt:
|
||||
@ -1350,7 +1394,6 @@ _outNode(StringInfo str, void *obj)
|
||||
case T_IndexStmt:
|
||||
_outIndexStmt(str, obj);
|
||||
break;
|
||||
|
||||
case T_ColumnDef:
|
||||
_outColumnDef(str, obj);
|
||||
break;
|
||||
@ -1551,9 +1594,8 @@ _outNode(StringInfo str, void *obj)
|
||||
nodeTag(obj));
|
||||
break;
|
||||
}
|
||||
appendStringInfo(str, "}");
|
||||
appendStringInfoChar(str, '}');
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/nodes/read.c,v 1.18 1999/07/17 20:17:08 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/nodes/read.c,v 1.19 2000/01/14 00:53:21 tgl Exp $
|
||||
*
|
||||
* HISTORY
|
||||
* AUTHOR DATE MAJOR EVENT
|
||||
@ -19,6 +19,7 @@
|
||||
#include <ctype.h>
|
||||
|
||||
#include "postgres.h"
|
||||
|
||||
#include "nodes/pg_list.h"
|
||||
#include "nodes/readfuncs.h"
|
||||
|
||||
@ -43,6 +44,134 @@ stringToNode(char *str)
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
/*
|
||||
* lsptok --- retrieve next "token" from a string.
|
||||
*
|
||||
* Works kinda like strtok, except it never modifies the source string.
|
||||
* (Instead of storing nulls into the string, the length of the token
|
||||
* is returned to the caller.)
|
||||
* Also, the rules about what is a token are hard-wired rather than being
|
||||
* configured by passing a set of terminating characters.
|
||||
*
|
||||
* The string is initially set by passing a non-NULL "string" value,
|
||||
* and subsequent calls with string==NULL read the previously given value.
|
||||
* (Pass length==NULL to set the string without reading its first token.)
|
||||
*
|
||||
* The rules for tokens are:
|
||||
* * Whitespace (space, tab, newline) always separates tokens.
|
||||
* * The characters '(', ')', '{', '}' form individual tokens even
|
||||
* without any whitespace around them.
|
||||
* * Otherwise, a token is all the characters up to the next whitespace
|
||||
* or occurrence of one of the four special characters.
|
||||
* * A backslash '\' can be used to quote whitespace or one of the four
|
||||
* special characters, so that it is treated as a plain token character.
|
||||
* Backslashes themselves must also be backslashed for consistency.
|
||||
* Any other character can be, but need not be, backslashed as well.
|
||||
* * If the resulting token is '<>' (with no backslash), it is returned
|
||||
* as a non-NULL pointer to the token but with length == 0. Note that
|
||||
* there is no other way to get a zero-length token.
|
||||
*
|
||||
* Returns a pointer to the start of the next token, and the length of the
|
||||
* token (including any embedded backslashes!) in *length. If there are
|
||||
* no more tokens, NULL and 0 are returned.
|
||||
*
|
||||
* NOTE: this routine doesn't remove backslashes; the caller must do so
|
||||
* if necessary (see "debackslash").
|
||||
*
|
||||
* NOTE: prior to release 7.0, this routine also had a special case to treat
|
||||
* a token starting with '"' as extending to the next '"'. This code was
|
||||
* broken, however, since it would fail to cope with a string containing an
|
||||
* embedded '"'. I have therefore removed this special case, and instead
|
||||
* introduced rules for using backslashes to quote characters. Higher-level
|
||||
* code should add backslashes to a string constant to ensure it is treated
|
||||
* as a single token.
|
||||
*/
|
||||
char *
|
||||
lsptok(char *string, int *length)
|
||||
{
|
||||
static char *saved_str = NULL;
|
||||
char *local_str; /* working pointer to string */
|
||||
char *ret_str; /* start of token to return */
|
||||
|
||||
if (string != NULL)
|
||||
{
|
||||
saved_str = string;
|
||||
if (length == NULL)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
local_str = saved_str;
|
||||
|
||||
while (*local_str == ' ' || *local_str == '\n' || *local_str == '\t')
|
||||
local_str++;
|
||||
|
||||
if (*local_str == '\0')
|
||||
{
|
||||
*length = 0;
|
||||
saved_str = local_str;
|
||||
return NULL; /* no more tokens */
|
||||
}
|
||||
|
||||
/*
|
||||
* Now pointing at start of next token.
|
||||
*/
|
||||
ret_str = local_str;
|
||||
|
||||
if (*local_str == '(' || *local_str == ')' ||
|
||||
*local_str == '{' || *local_str == '}')
|
||||
{
|
||||
/* special 1-character token */
|
||||
local_str++;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Normal token, possibly containing backslashes */
|
||||
while (*local_str != '\0' &&
|
||||
*local_str != ' ' && *local_str != '\n' &&
|
||||
*local_str != '\t' &&
|
||||
*local_str != '(' && *local_str != ')' &&
|
||||
*local_str != '{' && *local_str != '}')
|
||||
{
|
||||
if (*local_str == '\\' && local_str[1] != '\0')
|
||||
local_str += 2;
|
||||
else
|
||||
local_str++;
|
||||
}
|
||||
}
|
||||
|
||||
*length = local_str - ret_str;
|
||||
|
||||
/* Recognize special case for "empty" token */
|
||||
if (*length == 2 && ret_str[0] == '<' && ret_str[1] == '>')
|
||||
*length = 0;
|
||||
|
||||
saved_str = local_str;
|
||||
|
||||
return ret_str;
|
||||
}
|
||||
|
||||
/*
|
||||
* debackslash -
|
||||
* create a palloc'd string holding the given token.
|
||||
* any protective backslashes in the token are removed.
|
||||
*/
|
||||
char *
|
||||
debackslash(char *token, int length)
|
||||
{
|
||||
char *result = palloc(length+1);
|
||||
char *ptr = result;
|
||||
|
||||
while (length > 0)
|
||||
{
|
||||
if (*token == '\\' && length > 1)
|
||||
token++, length--;
|
||||
*ptr++ = *token++;
|
||||
length--;
|
||||
}
|
||||
*ptr = '\0';
|
||||
return result;
|
||||
}
|
||||
|
||||
#define RIGHT_PAREN (1000000 + 1)
|
||||
#define LEFT_PAREN (1000000 + 2)
|
||||
#define PLAN_SYM (1000000 + 3)
|
||||
@ -62,127 +191,72 @@ stringToNode(char *str)
|
||||
static NodeTag
|
||||
nodeTokenType(char *token, int length)
|
||||
{
|
||||
NodeTag retval = 0;
|
||||
NodeTag retval;
|
||||
|
||||
/*
|
||||
* Check if the token is a number (decimal or integer, positive or
|
||||
* negative
|
||||
* negative)
|
||||
*/
|
||||
if (isdigit(*token) ||
|
||||
(length >= 2 && *token == '-' && isdigit(*(token + 1))))
|
||||
(length >= 2 && *token == '-' && isdigit(token[1])))
|
||||
{
|
||||
|
||||
/*
|
||||
* skip the optional '-' (i.e. negative number)
|
||||
*/
|
||||
if (*token == '-')
|
||||
token++;
|
||||
token++, length--;
|
||||
|
||||
/*
|
||||
* See if there is a decimal point
|
||||
*/
|
||||
|
||||
for (; length && *token != '.'; token++, length--);
|
||||
while (length > 0 && *token != '.')
|
||||
token++, length--;
|
||||
|
||||
/*
|
||||
* if there isn't, token's an int, otherwise it's a float.
|
||||
*/
|
||||
|
||||
retval = (*token != '.') ? T_Integer : T_Float;
|
||||
}
|
||||
else if (isalpha(*token) || *token == '_' ||
|
||||
(token[0] == '<' && token[1] == '>'))
|
||||
retval = ATOM_TOKEN;
|
||||
/*
|
||||
* these three cases do not need length checks, since lsptok()
|
||||
* will always treat them as single-byte tokens
|
||||
*/
|
||||
else if (*token == '(')
|
||||
retval = LEFT_PAREN;
|
||||
else if (*token == ')')
|
||||
retval = RIGHT_PAREN;
|
||||
else if (*token == '@')
|
||||
retval = AT_SYMBOL;
|
||||
else if (*token == '\"')
|
||||
retval = T_String;
|
||||
else if (*token == '{')
|
||||
retval = PLAN_SYM;
|
||||
else if (*token == '@' && length == 1)
|
||||
retval = AT_SYMBOL;
|
||||
else if (*token == '\"' && length > 1 && token[length-1] == '\"')
|
||||
retval = T_String;
|
||||
else
|
||||
retval = ATOM_TOKEN;
|
||||
return retval;
|
||||
}
|
||||
|
||||
/*
|
||||
* Works kinda like strtok, except it doesn't put nulls into string.
|
||||
* nodeRead -
|
||||
* Slightly higher-level reader.
|
||||
*
|
||||
* Returns the length in length instead. The string can be set without
|
||||
* returning a token by calling lsptok with length == NULL.
|
||||
* This routine applies some semantic knowledge on top of the purely
|
||||
* lexical tokenizer lsptok(). It can read
|
||||
* * Value token nodes (integers, floats, or strings);
|
||||
* * Plan nodes (via parsePlanString() from readfuncs.c);
|
||||
* * Lists of the above.
|
||||
*
|
||||
*/
|
||||
char *
|
||||
lsptok(char *string, int *length)
|
||||
{
|
||||
static char *local_str;
|
||||
char *ret_string;
|
||||
|
||||
if (string != NULL)
|
||||
{
|
||||
local_str = string;
|
||||
if (length == NULL)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
for (; *local_str == ' '
|
||||
|| *local_str == '\n'
|
||||
|| *local_str == '\t'; local_str++);
|
||||
|
||||
/*
|
||||
* Now pointing at next token.
|
||||
*/
|
||||
ret_string = local_str;
|
||||
if (*local_str == '\0')
|
||||
return NULL;
|
||||
*length = 1;
|
||||
|
||||
if (*local_str == '"')
|
||||
{
|
||||
for (local_str++; *local_str != '"'; (*length)++, local_str++)
|
||||
;
|
||||
(*length)++;
|
||||
local_str++;
|
||||
}
|
||||
/* NULL */
|
||||
else if (local_str[0] == '<' && local_str[1] == '>')
|
||||
{
|
||||
*length = 0;
|
||||
local_str += 2;
|
||||
}
|
||||
else if (*local_str == ')' || *local_str == '(' ||
|
||||
*local_str == '}' || *local_str == '{')
|
||||
local_str++;
|
||||
else
|
||||
{
|
||||
for (; *local_str != ' '
|
||||
&& *local_str != '\n'
|
||||
&& *local_str != '\t'
|
||||
&& *local_str != '{'
|
||||
&& *local_str != '}'
|
||||
&& *local_str != '('
|
||||
&& *local_str != ')'; local_str++, (*length)++);
|
||||
(*length)--;
|
||||
}
|
||||
return ret_string;
|
||||
}
|
||||
|
||||
/*
|
||||
* This guy does all the reading.
|
||||
*
|
||||
* Secrets: He assumes that lsptok already has the string (see below).
|
||||
* Secrets: He assumes that lsptok already has the string (see above).
|
||||
* Any callers should set read_car_only to true.
|
||||
*/
|
||||
void *
|
||||
nodeRead(bool read_car_only)
|
||||
{
|
||||
char *token;
|
||||
NodeTag type;
|
||||
Node *this_value = NULL,
|
||||
*return_value = NULL;
|
||||
int tok_len;
|
||||
char tmp;
|
||||
NodeTag type;
|
||||
Node *this_value,
|
||||
*return_value;
|
||||
bool make_dotted_pair_cell = false;
|
||||
|
||||
token = lsptok(NULL, &tok_len);
|
||||
@ -198,8 +272,7 @@ nodeRead(bool read_car_only)
|
||||
this_value = parsePlanString();
|
||||
token = lsptok(NULL, &tok_len);
|
||||
if (token[0] != '}')
|
||||
return NULL;
|
||||
|
||||
elog(ERROR, "nodeRead: did not find '}' at end of plan node");
|
||||
if (!read_car_only)
|
||||
make_dotted_pair_cell = true;
|
||||
else
|
||||
@ -221,12 +294,13 @@ nodeRead(bool read_car_only)
|
||||
this_value = NULL;
|
||||
break;
|
||||
case AT_SYMBOL:
|
||||
this_value = NULL;
|
||||
break;
|
||||
case ATOM_TOKEN:
|
||||
if (!strncmp(token, "<>", 2))
|
||||
if (tok_len == 0)
|
||||
{
|
||||
/* must be "<>" */
|
||||
this_value = NULL;
|
||||
|
||||
/*
|
||||
* It might be NULL but it is an atom!
|
||||
*/
|
||||
@ -237,39 +311,28 @@ nodeRead(bool read_car_only)
|
||||
}
|
||||
else
|
||||
{
|
||||
tmp = token[tok_len];
|
||||
token[tok_len] = '\0';
|
||||
this_value = (Node *) pstrdup(token); /* !attention! not a
|
||||
* Node. use with
|
||||
* caution */
|
||||
token[tok_len] = tmp;
|
||||
/* !attention! result is not a Node. Use with caution. */
|
||||
this_value = (Node *) debackslash(token, tok_len);
|
||||
make_dotted_pair_cell = true;
|
||||
}
|
||||
break;
|
||||
case T_Float:
|
||||
tmp = token[tok_len];
|
||||
token[tok_len] = '\0';
|
||||
/* we know that the token terminates on a char atof will stop at */
|
||||
this_value = (Node *) makeFloat(atof(token));
|
||||
token[tok_len] = tmp;
|
||||
make_dotted_pair_cell = true;
|
||||
break;
|
||||
case T_Integer:
|
||||
tmp = token[tok_len];
|
||||
token[tok_len] = '\0';
|
||||
/* we know that the token terminates on a char atoi will stop at */
|
||||
this_value = (Node *) makeInteger(atoi(token));
|
||||
token[tok_len] = tmp;
|
||||
make_dotted_pair_cell = true;
|
||||
break;
|
||||
case T_String:
|
||||
tmp = token[tok_len - 1];
|
||||
token[tok_len - 1] = '\0';
|
||||
token++;
|
||||
this_value = (Node *) makeString(token); /* !! not strdup'd */
|
||||
token[tok_len - 2] = tmp;
|
||||
this_value = (Node *) makeString(debackslash(token+1, tok_len-2));
|
||||
make_dotted_pair_cell = true;
|
||||
break;
|
||||
default:
|
||||
elog(ERROR, "nodeRead: Bad type %d", type);
|
||||
this_value = NULL; /* keep compiler happy */
|
||||
break;
|
||||
}
|
||||
if (make_dotted_pair_cell)
|
||||
|
||||
@ -7,7 +7,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.77 2000/01/09 00:26:24 tgl Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.78 2000/01/14 00:53:21 tgl Exp $
|
||||
*
|
||||
* NOTES
|
||||
* Most of the read functions for plan nodes are tested. (In fact, they
|
||||
@ -26,8 +26,6 @@
|
||||
|
||||
#include "postgres.h"
|
||||
|
||||
|
||||
|
||||
#include "catalog/pg_index.h"
|
||||
#include "nodes/plannodes.h"
|
||||
#include "nodes/readfuncs.h"
|
||||
@ -81,8 +79,7 @@ _readQuery()
|
||||
{
|
||||
NotifyStmt *n = makeNode(NotifyStmt);
|
||||
|
||||
n->relname = palloc(length + 1);
|
||||
StrNCpy(n->relname, token, length + 1);
|
||||
n->relname = debackslash(token, length);
|
||||
local_node->utilityStmt = (Node *) n;
|
||||
}
|
||||
|
||||
@ -95,10 +92,7 @@ _readQuery()
|
||||
if (length == 0)
|
||||
local_node->into = NULL;
|
||||
else
|
||||
{
|
||||
local_node->into = palloc(length + 1);
|
||||
StrNCpy(local_node->into, token, length + 1);
|
||||
}
|
||||
local_node->into = debackslash(token, length);
|
||||
|
||||
token = lsptok(NULL, &length); /* skip :isPortal */
|
||||
token = lsptok(NULL, &length); /* get isPortal */
|
||||
@ -121,10 +115,7 @@ _readQuery()
|
||||
if (length == 0)
|
||||
local_node->uniqueFlag = NULL;
|
||||
else
|
||||
{
|
||||
local_node->uniqueFlag = palloc(length + 1);
|
||||
StrNCpy(local_node->uniqueFlag, token, length + 1);
|
||||
}
|
||||
local_node->uniqueFlag = debackslash(token, length);
|
||||
|
||||
token = lsptok(NULL, &length); /* skip :sortClause */
|
||||
local_node->sortClause = nodeRead(true);
|
||||
@ -289,9 +280,6 @@ _readPlan()
|
||||
|
||||
/* ----------------
|
||||
* _readResult
|
||||
*
|
||||
* Does some obscene, possibly unportable, magic with
|
||||
* sizes of things.
|
||||
* ----------------
|
||||
*/
|
||||
static Result *
|
||||
@ -718,14 +706,10 @@ _readResdom()
|
||||
|
||||
token = lsptok(NULL, &length); /* eat :resname */
|
||||
token = lsptok(NULL, &length); /* get the name */
|
||||
|
||||
if (length == 0)
|
||||
local_node->resname = NULL;
|
||||
else
|
||||
{
|
||||
local_node->resname = (char *) palloc(length + 1);
|
||||
StrNCpy(local_node->resname, token + 1, length + 1 - 2); /* strip quotes */
|
||||
}
|
||||
local_node->resname = debackslash(token, length);
|
||||
|
||||
token = lsptok(NULL, &length); /* eat :reskey */
|
||||
token = lsptok(NULL, &length); /* get reskey */
|
||||
@ -779,6 +763,8 @@ _readExpr()
|
||||
local_node->opType = NOT_EXPR;
|
||||
else if (!strncmp(token, "subp", 4))
|
||||
local_node->opType = SUBPLAN_EXPR;
|
||||
else
|
||||
elog(ERROR, "_readExpr: unknown opType \"%.10s\"", token);
|
||||
|
||||
token = lsptok(NULL, &length); /* eat :oper */
|
||||
local_node->oper = nodeRead(true);
|
||||
@ -1140,10 +1126,7 @@ _readParam()
|
||||
if (length == 0)
|
||||
local_node->paramname = NULL;
|
||||
else
|
||||
{
|
||||
local_node->paramname = (char *) palloc(length + 1);
|
||||
StrNCpy(local_node->paramname, token, length + 1);
|
||||
}
|
||||
local_node->paramname = debackslash(token, length);
|
||||
|
||||
token = lsptok(NULL, &length); /* get :paramtype */
|
||||
token = lsptok(NULL, &length); /* now read it */
|
||||
@ -1172,8 +1155,7 @@ _readAggref()
|
||||
|
||||
token = lsptok(NULL, &length); /* eat :aggname */
|
||||
token = lsptok(NULL, &length); /* get aggname */
|
||||
local_node->aggname = (char *) palloc(length + 1);
|
||||
StrNCpy(local_node->aggname, token, length + 1);
|
||||
local_node->aggname = debackslash(token, length);
|
||||
|
||||
token = lsptok(NULL, &length); /* eat :basetype */
|
||||
token = lsptok(NULL, &length); /* get basetype */
|
||||
@ -1416,20 +1398,14 @@ _readRangeTblEntry()
|
||||
if (length == 0)
|
||||
local_node->relname = NULL;
|
||||
else
|
||||
{
|
||||
local_node->relname = (char *) palloc(length + 1);
|
||||
StrNCpy(local_node->relname, token, length + 1);
|
||||
}
|
||||
local_node->relname = debackslash(token, length);
|
||||
|
||||
token = lsptok(NULL, &length); /* eat :refname */
|
||||
token = lsptok(NULL, &length); /* get :refname */
|
||||
if (length == 0)
|
||||
local_node->refname = NULL;
|
||||
else
|
||||
{
|
||||
local_node->refname = (char *) palloc(length + 1);
|
||||
StrNCpy(local_node->refname, token, length + 1);
|
||||
}
|
||||
local_node->refname = debackslash(token, length);
|
||||
|
||||
token = lsptok(NULL, &length); /* eat :relid */
|
||||
token = lsptok(NULL, &length); /* get :relid */
|
||||
@ -1854,7 +1830,7 @@ _readIter()
|
||||
* Given a character string containing a plan, parsePlanString sets up the
|
||||
* plan structure representing that plan.
|
||||
*
|
||||
* The string passed to parsePlanString must be null-terminated.
|
||||
* The string to be read must already have been loaded into lsptok().
|
||||
* ----------------
|
||||
*/
|
||||
Node *
|
||||
@ -1866,101 +1842,101 @@ parsePlanString(void)
|
||||
|
||||
token = lsptok(NULL, &length);
|
||||
|
||||
if (!strncmp(token, "PLAN", length))
|
||||
if (length == 4 && strncmp(token, "PLAN", length) == 0)
|
||||
return_value = _readPlan();
|
||||
else if (!strncmp(token, "RESULT", length))
|
||||
else if (length == 6 && strncmp(token, "RESULT", length) == 0)
|
||||
return_value = _readResult();
|
||||
else if (!strncmp(token, "APPEND", length))
|
||||
else if (length == 6 && strncmp(token, "APPEND", length) == 0)
|
||||
return_value = _readAppend();
|
||||
else if (!strncmp(token, "JOIN", length))
|
||||
else if (length == 4 && strncmp(token, "JOIN", length) == 0)
|
||||
return_value = _readJoin();
|
||||
else if (!strncmp(token, "NESTLOOP", length))
|
||||
else if (length == 8 && strncmp(token, "NESTLOOP", length) == 0)
|
||||
return_value = _readNestLoop();
|
||||
else if (!strncmp(token, "MERGEJOIN", length))
|
||||
else if (length == 9 && strncmp(token, "MERGEJOIN", length) == 0)
|
||||
return_value = _readMergeJoin();
|
||||
else if (!strncmp(token, "HASHJOIN", length))
|
||||
else if (length == 8 && strncmp(token, "HASHJOIN", length) == 0)
|
||||
return_value = _readHashJoin();
|
||||
else if (!strncmp(token, "SCAN", length))
|
||||
else if (length == 4 && strncmp(token, "SCAN", length) == 0)
|
||||
return_value = _readScan();
|
||||
else if (!strncmp(token, "SEQSCAN", length))
|
||||
else if (length == 7 && strncmp(token, "SEQSCAN", length) == 0)
|
||||
return_value = _readSeqScan();
|
||||
else if (!strncmp(token, "INDEXSCAN", length))
|
||||
else if (length == 9 && strncmp(token, "INDEXSCAN", length) == 0)
|
||||
return_value = _readIndexScan();
|
||||
else if (!strncmp(token, "TIDSCAN", length))
|
||||
else if (length == 7 && strncmp(token, "TIDSCAN", length) == 0)
|
||||
return_value = _readTidScan();
|
||||
else if (!strncmp(token, "NONAME", length))
|
||||
else if (length == 6 && strncmp(token, "NONAME", length) == 0)
|
||||
return_value = _readNoname();
|
||||
else if (!strncmp(token, "SORT", length))
|
||||
else if (length == 4 && strncmp(token, "SORT", length) == 0)
|
||||
return_value = _readSort();
|
||||
else if (!strncmp(token, "AGGREG", length))
|
||||
else if (length == 6 && strncmp(token, "AGGREG", length) == 0)
|
||||
return_value = _readAggref();
|
||||
else if (!strncmp(token, "SUBLINK", length))
|
||||
else if (length == 7 && strncmp(token, "SUBLINK", length) == 0)
|
||||
return_value = _readSubLink();
|
||||
else if (!strncmp(token, "AGG", length))
|
||||
else if (length == 3 && strncmp(token, "AGG", length) == 0)
|
||||
return_value = _readAgg();
|
||||
else if (!strncmp(token, "UNIQUE", length))
|
||||
else if (length == 6 && strncmp(token, "UNIQUE", length) == 0)
|
||||
return_value = _readUnique();
|
||||
else if (!strncmp(token, "HASH", length))
|
||||
else if (length == 4 && strncmp(token, "HASH", length) == 0)
|
||||
return_value = _readHash();
|
||||
else if (!strncmp(token, "RESDOM", length))
|
||||
else if (length == 6 && strncmp(token, "RESDOM", length) == 0)
|
||||
return_value = _readResdom();
|
||||
else if (!strncmp(token, "EXPR", length))
|
||||
else if (length == 4 && strncmp(token, "EXPR", length) == 0)
|
||||
return_value = _readExpr();
|
||||
else if (!strncmp(token, "ARRAYREF", length))
|
||||
else if (length == 8 && strncmp(token, "ARRAYREF", length) == 0)
|
||||
return_value = _readArrayRef();
|
||||
else if (!strncmp(token, "ARRAY", length))
|
||||
else if (length == 5 && strncmp(token, "ARRAY", length) == 0)
|
||||
return_value = _readArray();
|
||||
else if (!strncmp(token, "VAR", length))
|
||||
else if (length == 3 && strncmp(token, "VAR", length) == 0)
|
||||
return_value = _readVar();
|
||||
else if (!strncmp(token, "CONST", length))
|
||||
else if (length == 5 && strncmp(token, "CONST", length) == 0)
|
||||
return_value = _readConst();
|
||||
else if (!strncmp(token, "FUNC", length))
|
||||
else if (length == 4 && strncmp(token, "FUNC", length) == 0)
|
||||
return_value = _readFunc();
|
||||
else if (!strncmp(token, "OPER", length))
|
||||
else if (length == 4 && strncmp(token, "OPER", length) == 0)
|
||||
return_value = _readOper();
|
||||
else if (!strncmp(token, "PARAM", length))
|
||||
else if (length == 5 && strncmp(token, "PARAM", length) == 0)
|
||||
return_value = _readParam();
|
||||
else if (!strncmp(token, "ESTATE", length))
|
||||
else if (length == 6 && strncmp(token, "ESTATE", length) == 0)
|
||||
return_value = _readEState();
|
||||
else if (!strncmp(token, "RELOPTINFO", length))
|
||||
else if (length == 10 && strncmp(token, "RELOPTINFO", length) == 0)
|
||||
return_value = _readRelOptInfo();
|
||||
else if (!strncmp(token, "INDEXOPTINFO", length))
|
||||
else if (length == 12 && strncmp(token, "INDEXOPTINFO", length) == 0)
|
||||
return_value = _readIndexOptInfo();
|
||||
else if (!strncmp(token, "TARGETENTRY", length))
|
||||
else if (length == 11 && strncmp(token, "TARGETENTRY", length) == 0)
|
||||
return_value = _readTargetEntry();
|
||||
else if (!strncmp(token, "RTE", length))
|
||||
else if (length == 3 && strncmp(token, "RTE", length) == 0)
|
||||
return_value = _readRangeTblEntry();
|
||||
else if (!strncmp(token, "PATH", length))
|
||||
else if (length == 4 && strncmp(token, "PATH", length) == 0)
|
||||
return_value = _readPath();
|
||||
else if (!strncmp(token, "INDEXPATH", length))
|
||||
else if (length == 9 && strncmp(token, "INDEXPATH", length) == 0)
|
||||
return_value = _readIndexPath();
|
||||
else if (!strncmp(token, "TIDPATH", length))
|
||||
else if (length == 7 && strncmp(token, "TIDPATH", length) == 0)
|
||||
return_value = _readTidPath();
|
||||
else if (!strncmp(token, "NESTPATH", length))
|
||||
else if (length == 8 && strncmp(token, "NESTPATH", length) == 0)
|
||||
return_value = _readNestPath();
|
||||
else if (!strncmp(token, "MERGEPATH", length))
|
||||
else if (length == 9 && strncmp(token, "MERGEPATH", length) == 0)
|
||||
return_value = _readMergePath();
|
||||
else if (!strncmp(token, "HASHPATH", length))
|
||||
else if (length == 8 && strncmp(token, "HASHPATH", length) == 0)
|
||||
return_value = _readHashPath();
|
||||
else if (!strncmp(token, "PATHKEYITEM", length))
|
||||
else if (length == 11 && strncmp(token, "PATHKEYITEM", length) == 0)
|
||||
return_value = _readPathKeyItem();
|
||||
else if (!strncmp(token, "RESTRICTINFO", length))
|
||||
else if (length == 12 && strncmp(token, "RESTRICTINFO", length) == 0)
|
||||
return_value = _readRestrictInfo();
|
||||
else if (!strncmp(token, "JOININFO", length))
|
||||
else if (length == 8 && strncmp(token, "JOININFO", length) == 0)
|
||||
return_value = _readJoinInfo();
|
||||
else if (!strncmp(token, "ITER", length))
|
||||
else if (length == 4 && strncmp(token, "ITER", length) == 0)
|
||||
return_value = _readIter();
|
||||
else if (!strncmp(token, "QUERY", length))
|
||||
else if (length == 5 && strncmp(token, "QUERY", length) == 0)
|
||||
return_value = _readQuery();
|
||||
else if (!strncmp(token, "SORTCLAUSE", length))
|
||||
else if (length == 10 && strncmp(token, "SORTCLAUSE", length) == 0)
|
||||
return_value = _readSortClause();
|
||||
else if (!strncmp(token, "GROUPCLAUSE", length))
|
||||
else if (length == 11 && strncmp(token, "GROUPCLAUSE", length) == 0)
|
||||
return_value = _readGroupClause();
|
||||
else if (!strncmp(token, "CASE", length))
|
||||
else if (length == 4 && strncmp(token, "CASE", length) == 0)
|
||||
return_value = _readCaseExpr();
|
||||
else if (!strncmp(token, "WHEN", length))
|
||||
else if (length == 4 && strncmp(token, "WHEN", length) == 0)
|
||||
return_value = _readCaseWhen();
|
||||
else if (!strncmp(token, "ROWMARK", length))
|
||||
else if (length == 7 && strncmp(token, "ROWMARK", length) == 0)
|
||||
return_value = _readRowMark();
|
||||
else
|
||||
elog(ERROR, "badly formatted planstring \"%.10s\"...\n", token);
|
||||
@ -2001,6 +1977,7 @@ readDatum(Oid type)
|
||||
{
|
||||
if (length > sizeof(Datum))
|
||||
elog(ERROR, "readValue: byval & length = %d", length);
|
||||
res = (Datum) 0;
|
||||
s = (char *) (&res);
|
||||
for (i = 0; i < sizeof(Datum); i++)
|
||||
{
|
||||
@ -2009,11 +1986,10 @@ readDatum(Oid type)
|
||||
}
|
||||
}
|
||||
else if (length <= 0)
|
||||
s = NULL;
|
||||
else if (length >= 1)
|
||||
res = (Datum) NULL;
|
||||
else
|
||||
{
|
||||
s = (char *) palloc(length);
|
||||
Assert(s != NULL);
|
||||
for (i = 0; i < length; i++)
|
||||
{
|
||||
token = lsptok(NULL, &tokenLength);
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
*
|
||||
* Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
* $Id: readfuncs.h,v 1.7 1999/02/13 23:21:41 momjian Exp $
|
||||
* $Id: readfuncs.h,v 1.8 2000/01/14 00:53:20 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -19,6 +19,7 @@
|
||||
* prototypes for functions in read.c (the lisp token parser)
|
||||
*/
|
||||
extern char *lsptok(char *string, int *length);
|
||||
extern char *debackslash(char *token, int length);
|
||||
extern void *nodeRead(bool read_car_only);
|
||||
|
||||
/*
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user