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-rw-r--r--src/backend/access/common/printtup.c306
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diff --git a/src/backend/access/common/printtup.c b/src/backend/access/common/printtup.c
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+++ b/src/backend/access/common/printtup.c
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+/*-------------------------------------------------------------------------
+ *
+ * printtup.c--
+ * Routines to print out tuples to the destination (binary or non-binary
+ * portals, frontend/interactive backend, etc.).
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ * $Header: /cvsroot/pgsql/src/backend/access/common/printtup.c,v 1.1.1.1 1996/07/09 06:21:10 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#include <sys/file.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "postgres.h"
+
+#include "access/heapam.h"
+#include "access/htup.h"
+#include "access/skey.h"
+#include "access/printtup.h"
+#include "access/tupdesc.h"
+#include "storage/buf.h"
+#include "utils/memutils.h"
+#include "utils/palloc.h"
+#include "fmgr.h"
+#include "utils/elog.h"
+
+#include "utils/syscache.h"
+#include "catalog/pg_type.h"
+
+#include "libpq/libpq.h"
+
+/* ----------------------------------------------------------------
+ * printtup / debugtup support
+ * ----------------------------------------------------------------
+ */
+
+/* ----------------
+ * typtoout - used by printtup and debugtup
+ * ----------------
+ */
+Oid
+typtoout(Oid type)
+{
+ HeapTuple typeTuple;
+
+ typeTuple = SearchSysCacheTuple(TYPOID,
+ ObjectIdGetDatum(type),
+ 0, 0, 0);
+
+ if (HeapTupleIsValid(typeTuple))
+ return((Oid)
+ ((TypeTupleForm) GETSTRUCT(typeTuple))->typoutput);
+
+ elog(WARN, "typtoout: Cache lookup of type %d failed", type);
+ return(InvalidOid);
+}
+
+Oid
+gettypelem(Oid type)
+{
+ HeapTuple typeTuple;
+
+ typeTuple = SearchSysCacheTuple(TYPOID,
+ ObjectIdGetDatum(type),
+ 0,0,0);
+
+ if (HeapTupleIsValid(typeTuple))
+ return((Oid)
+ ((TypeTupleForm) GETSTRUCT(typeTuple))->typelem);
+
+ elog(WARN, "typtoout: Cache lookup of type %d failed", type);
+ return(InvalidOid);
+}
+
+/* ----------------
+ * printtup
+ * ----------------
+ */
+void
+printtup(HeapTuple tuple, TupleDesc typeinfo)
+{
+ int i, j, k;
+ char *outputstr, *attr;
+ bool isnull;
+ Oid typoutput;
+
+ /* ----------------
+ * tell the frontend to expect new tuple data
+ * ----------------
+ */
+ pq_putnchar("D", 1);
+
+ /* ----------------
+ * send a bitmap of which attributes are null
+ * ----------------
+ */
+ j = 0;
+ k = 1 << 7;
+ for (i = 0; i < tuple->t_natts; ) {
+ attr = heap_getattr(tuple, InvalidBuffer, ++i, typeinfo, &isnull);
+ if (!isnull)
+ j |= k;
+ k >>= 1;
+ if (!(i & 7)) {
+ pq_putint(j, 1);
+ j = 0;
+ k = 1 << 7;
+ }
+ }
+ if (i & 7)
+ pq_putint(j, 1);
+
+ /* ----------------
+ * send the attributes of this tuple
+ * ----------------
+ */
+ for (i = 0; i < tuple->t_natts; ++i) {
+ attr = heap_getattr(tuple, InvalidBuffer, i+1, typeinfo, &isnull);
+ typoutput = typtoout((Oid) typeinfo->attrs[i]->atttypid);
+
+ if (!isnull && OidIsValid(typoutput)) {
+ outputstr = fmgr(typoutput, attr,
+ gettypelem(typeinfo->attrs[i]->atttypid));
+ pq_putint(strlen(outputstr)+4, 4);
+ pq_putnchar(outputstr, strlen(outputstr));
+ pfree(outputstr);
+ }
+ }
+}
+
+/* ----------------
+ * printatt
+ * ----------------
+ */
+static void
+printatt(unsigned attributeId,
+ AttributeTupleForm attributeP,
+ char *value)
+{
+ printf("\t%2d: %.*s%s%s%s\t(typeid = %u, len = %d, byval = %c)\n",
+ attributeId,
+ NAMEDATALEN, /* attname is a char16 */
+ attributeP->attname.data,
+ value != NULL ? " = \"" : "",
+ value != NULL ? value : "",
+ value != NULL ? "\"" : "",
+ (unsigned int) (attributeP->atttypid),
+ attributeP->attlen,
+ attributeP->attbyval ? 't' : 'f');
+}
+
+/* ----------------
+ * showatts
+ * ----------------
+ */
+void
+showatts(char *name, TupleDesc tupleDesc)
+{
+ int i;
+ int natts = tupleDesc->natts;
+ AttributeTupleForm *attinfo = tupleDesc->attrs;
+
+ puts(name);
+ for (i = 0; i < natts; ++i)
+ printatt((unsigned) i+1, attinfo[i], (char *) NULL);
+ printf("\t----\n");
+}
+
+/* ----------------
+ * debugtup
+ * ----------------
+ */
+void
+debugtup(HeapTuple tuple, TupleDesc typeinfo)
+{
+ register int i;
+ char *attr, *value;
+ bool isnull;
+ Oid typoutput;
+
+ for (i = 0; i < tuple->t_natts; ++i) {
+ attr = heap_getattr(tuple, InvalidBuffer, i+1, typeinfo, &isnull);
+ typoutput = typtoout((Oid) typeinfo->attrs[i]->atttypid);
+
+ if (!isnull && OidIsValid(typoutput)) {
+ value = fmgr(typoutput, attr,
+ gettypelem(typeinfo->attrs[i]->atttypid));
+ printatt((unsigned) i+1, typeinfo->attrs[i], value);
+ pfree(value);
+ }
+ }
+ printf("\t----\n");
+}
+
+/*#define IPORTAL_DEBUG*/
+
+/* ----------------
+ * printtup_internal
+ * Protocol expects either T, D, C, E, or N.
+ * We use a different data prefix, e.g. 'B' instead of 'D' to
+ * indicate a tuple in internal (binary) form.
+ *
+ * This is same as printtup, except we don't use the typout func.
+ * ----------------
+ */
+void
+printtup_internal(HeapTuple tuple, TupleDesc typeinfo)
+{
+ int i, j, k;
+ char *attr;
+ bool isnull;
+
+ /* ----------------
+ * tell the frontend to expect new tuple data
+ * ----------------
+ */
+ pq_putnchar("B", 1);
+
+ /* ----------------
+ * send a bitmap of which attributes are null
+ * ----------------
+ */
+ j = 0;
+ k = 1 << 7;
+ for (i = 0; i < tuple->t_natts; ) {
+ attr = heap_getattr(tuple, InvalidBuffer, ++i, typeinfo, &isnull);
+ if (!isnull)
+ j |= k;
+ k >>= 1;
+ if (!(i & 7)) {
+ pq_putint(j, 1);
+ j = 0;
+ k = 1 << 7;
+ }
+ }
+ if (i & 7)
+ pq_putint(j, 1);
+
+ /* ----------------
+ * send the attributes of this tuple
+ * ----------------
+ */
+#ifdef IPORTAL_DEBUG
+ fprintf(stderr, "sending tuple with %d atts\n", tuple->t_natts);
+#endif
+ for (i = 0; i < tuple->t_natts; ++i) {
+ int32 len = typeinfo->attrs[i]->attlen;
+
+ attr = heap_getattr(tuple, InvalidBuffer, i+1, typeinfo, &isnull);
+ if (!isnull) {
+ /* # of bytes, and opaque data */
+ if (len == -1) {
+ /* variable length, assume a varlena structure */
+ len = VARSIZE(attr) - VARHDRSZ;
+
+ pq_putint(len, sizeof(int32));
+ pq_putnchar(VARDATA(attr), len);
+#ifdef IPORTAL_DEBUG
+ {
+ char *d = VARDATA(attr);
+
+ fprintf(stderr, "length %d data %x%x%x%x\n",
+ len, *d, *(d+1), *(d+2), *(d+3));
+ }
+#endif
+ } else {
+ /* fixed size */
+ if (typeinfo->attrs[i]->attbyval) {
+ int8 i8;
+ int16 i16;
+ int32 i32;
+
+ pq_putint(len, sizeof(int32));
+ switch (len) {
+ case sizeof(int8):
+ i8 = DatumGetChar(attr);
+ pq_putnchar((char *) &i8, len);
+ break;
+ case sizeof(int16):
+ i16 = DatumGetInt16(attr);
+ pq_putnchar((char *) &i16, len);
+ break;
+ case sizeof(int32):
+ i32 = DatumGetInt32(attr);
+ pq_putnchar((char *) &i32, len);
+ break;
+ }
+#ifdef IPORTAL_DEBUG
+ fprintf(stderr, "byval length %d data %d\n", len, attr);
+#endif
+ } else {
+ pq_putint(len, sizeof(int32));
+ pq_putnchar(attr, len);
+#ifdef IPORTAL_DEBUG
+ fprintf(stderr, "byref length %d data %x\n", len, attr);
+#endif
+ }
+ }
+ }
+ }
+}
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