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-rw-r--r--src/backend/access/common/printtup.c275
1 files changed, 124 insertions, 151 deletions
diff --git a/src/backend/access/common/printtup.c b/src/backend/access/common/printtup.c
index d5a29ef16c6..6ad53ddb3ca 100644
--- a/src/backend/access/common/printtup.c
+++ b/src/backend/access/common/printtup.c
@@ -9,7 +9,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/access/common/printtup.c,v 1.71 2003/05/08 18:16:36 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/access/common/printtup.c,v 1.72 2003/05/09 18:08:48 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -42,14 +42,19 @@ static void printtup_destroy(DestReceiver *self);
/* ----------------
* Private state for a printtup destination object
+ *
+ * NOTE: finfo is the lookup info for either typoutput or typsend, whichever
+ * we are using for this column.
* ----------------
*/
typedef struct
{ /* Per-attribute information */
- Oid typoutput; /* Oid for the attribute's type output fn */
+ Oid typoutput; /* Oid for the type's text output fn */
+ Oid typsend; /* Oid for the type's binary output fn */
Oid typelem; /* typelem value to pass to the output fn */
bool typisvarlena; /* is it varlena (ie possibly toastable)? */
- FmgrInfo finfo; /* Precomputed call info for typoutput */
+ int16 format; /* format code for this column */
+ FmgrInfo finfo; /* Precomputed call info for output fn */
} PrinttupAttrInfo;
typedef struct
@@ -219,9 +224,13 @@ SendRowDescriptionMessage(TupleDesc typeinfo, List *targetlist, int16 *formats)
pq_endmessage(&buf);
}
+/*
+ * Get the lookup info that printtup() needs
+ */
static void
printtup_prepare_info(DR_printtup *myState, TupleDesc typeinfo, int numAttrs)
{
+ int16 *formats = myState->portal->formats;
int i;
if (myState->myinfo)
@@ -232,15 +241,31 @@ printtup_prepare_info(DR_printtup *myState, TupleDesc typeinfo, int numAttrs)
if (numAttrs <= 0)
return;
myState->myinfo = (PrinttupAttrInfo *)
- palloc(numAttrs * sizeof(PrinttupAttrInfo));
+ palloc0(numAttrs * sizeof(PrinttupAttrInfo));
for (i = 0; i < numAttrs; i++)
{
PrinttupAttrInfo *thisState = myState->myinfo + i;
+ int16 format = (formats ? formats[i] : 0);
- if (getTypeOutputInfo(typeinfo->attrs[i]->atttypid,
- &thisState->typoutput, &thisState->typelem,
- &thisState->typisvarlena))
+ thisState->format = format;
+ if (format == 0)
+ {
+ getTypeOutputInfo(typeinfo->attrs[i]->atttypid,
+ &thisState->typoutput,
+ &thisState->typelem,
+ &thisState->typisvarlena);
fmgr_info(thisState->typoutput, &thisState->finfo);
+ }
+ else if (format == 1)
+ {
+ getTypeBinaryOutputInfo(typeinfo->attrs[i]->atttypid,
+ &thisState->typsend,
+ &thisState->typelem,
+ &thisState->typisvarlena);
+ fmgr_info(thisState->typsend, &thisState->finfo);
+ }
+ else
+ elog(ERROR, "Unsupported format code %d", format);
}
}
@@ -252,7 +277,6 @@ static void
printtup(HeapTuple tuple, TupleDesc typeinfo, DestReceiver *self)
{
DR_printtup *myState = (DR_printtup *) self;
- int16 *formats = myState->portal->formats;
StringInfoData buf;
int natts = tuple->t_data->t_natts;
int i;
@@ -274,11 +298,9 @@ printtup(HeapTuple tuple, TupleDesc typeinfo, DestReceiver *self)
for (i = 0; i < natts; ++i)
{
PrinttupAttrInfo *thisState = myState->myinfo + i;
- int16 format = (formats ? formats[i] : 0);
Datum origattr,
attr;
bool isnull;
- char *outputstr;
origattr = heap_getattr(tuple, i + 1, typeinfo, &isnull);
if (isnull)
@@ -286,46 +308,46 @@ printtup(HeapTuple tuple, TupleDesc typeinfo, DestReceiver *self)
pq_sendint(&buf, -1, 4);
continue;
}
- if (format == 0)
- {
- if (OidIsValid(thisState->typoutput))
- {
- /*
- * If we have a toasted datum, forcibly detoast it here to
- * avoid memory leakage inside the type's output routine.
- */
- if (thisState->typisvarlena)
- attr = PointerGetDatum(PG_DETOAST_DATUM(origattr));
- else
- attr = origattr;
-
- outputstr = DatumGetCString(FunctionCall3(&thisState->finfo,
- attr,
- ObjectIdGetDatum(thisState->typelem),
- Int32GetDatum(typeinfo->attrs[i]->atttypmod)));
- pq_sendcountedtext(&buf, outputstr, strlen(outputstr), false);
+ /*
+ * If we have a toasted datum, forcibly detoast it here to
+ * avoid memory leakage inside the type's output routine.
+ */
+ if (thisState->typisvarlena)
+ attr = PointerGetDatum(PG_DETOAST_DATUM(origattr));
+ else
+ attr = origattr;
- /* Clean up detoasted copy, if any */
- if (attr != origattr)
- pfree(DatumGetPointer(attr));
- pfree(outputstr);
- }
- else
- {
- outputstr = "<unprintable>";
- pq_sendcountedtext(&buf, outputstr, strlen(outputstr), false);
- }
- }
- else if (format == 1)
+ if (thisState->format == 0)
{
- /* XXX something similar to above */
- elog(ERROR, "Binary transmission not implemented yet");
+ /* Text output */
+ char *outputstr;
+
+ outputstr = DatumGetCString(FunctionCall3(&thisState->finfo,
+ attr,
+ ObjectIdGetDatum(thisState->typelem),
+ Int32GetDatum(typeinfo->attrs[i]->atttypmod)));
+ pq_sendcountedtext(&buf, outputstr, strlen(outputstr), false);
+ pfree(outputstr);
}
else
{
- elog(ERROR, "Invalid format code %d", format);
+ /* Binary output */
+ bytea *outputbytes;
+
+ outputbytes = DatumGetByteaP(FunctionCall2(&thisState->finfo,
+ attr,
+ ObjectIdGetDatum(thisState->typelem)));
+ /* We assume the result will not have been toasted */
+ pq_sendint(&buf, VARSIZE(outputbytes) - VARHDRSZ, 4);
+ pq_sendbytes(&buf, VARDATA(outputbytes),
+ VARSIZE(outputbytes) - VARHDRSZ);
+ pfree(outputbytes);
}
+
+ /* Clean up detoasted copy, if any */
+ if (attr != origattr)
+ pfree(DatumGetPointer(attr));
}
pq_endmessage(&buf);
@@ -388,34 +410,28 @@ printtup_20(HeapTuple tuple, TupleDesc typeinfo, DestReceiver *self)
origattr = heap_getattr(tuple, i + 1, typeinfo, &isnull);
if (isnull)
continue;
- if (OidIsValid(thisState->typoutput))
- {
- /*
- * If we have a toasted datum, forcibly detoast it here to
- * avoid memory leakage inside the type's output routine.
- */
- if (thisState->typisvarlena)
- attr = PointerGetDatum(PG_DETOAST_DATUM(origattr));
- else
- attr = origattr;
- outputstr = DatumGetCString(FunctionCall3(&thisState->finfo,
- attr,
+ Assert(thisState->format == 0);
+
+ /*
+ * If we have a toasted datum, forcibly detoast it here to
+ * avoid memory leakage inside the type's output routine.
+ */
+ if (thisState->typisvarlena)
+ attr = PointerGetDatum(PG_DETOAST_DATUM(origattr));
+ else
+ attr = origattr;
+
+ outputstr = DatumGetCString(FunctionCall3(&thisState->finfo,
+ attr,
ObjectIdGetDatum(thisState->typelem),
Int32GetDatum(typeinfo->attrs[i]->atttypmod)));
+ pq_sendcountedtext(&buf, outputstr, strlen(outputstr), true);
+ pfree(outputstr);
- pq_sendcountedtext(&buf, outputstr, strlen(outputstr), true);
-
- /* Clean up detoasted copy, if any */
- if (attr != origattr)
- pfree(DatumGetPointer(attr));
- pfree(outputstr);
- }
- else
- {
- outputstr = "<unprintable>";
- pq_sendcountedtext(&buf, outputstr, strlen(outputstr), true);
- }
+ /* Clean up detoasted copy, if any */
+ if (attr != origattr)
+ pfree(DatumGetPointer(attr));
}
pq_endmessage(&buf);
@@ -508,30 +524,29 @@ debugtup(HeapTuple tuple, TupleDesc typeinfo, DestReceiver *self)
origattr = heap_getattr(tuple, i + 1, typeinfo, &isnull);
if (isnull)
continue;
- if (getTypeOutputInfo(typeinfo->attrs[i]->atttypid,
- &typoutput, &typelem, &typisvarlena))
- {
- /*
- * If we have a toasted datum, forcibly detoast it here to
- * avoid memory leakage inside the type's output routine.
- */
- if (typisvarlena)
- attr = PointerGetDatum(PG_DETOAST_DATUM(origattr));
- else
- attr = origattr;
+ getTypeOutputInfo(typeinfo->attrs[i]->atttypid,
+ &typoutput, &typelem, &typisvarlena);
+ /*
+ * If we have a toasted datum, forcibly detoast it here to
+ * avoid memory leakage inside the type's output routine.
+ */
+ if (typisvarlena)
+ attr = PointerGetDatum(PG_DETOAST_DATUM(origattr));
+ else
+ attr = origattr;
- value = DatumGetCString(OidFunctionCall3(typoutput,
- attr,
- ObjectIdGetDatum(typelem),
+ value = DatumGetCString(OidFunctionCall3(typoutput,
+ attr,
+ ObjectIdGetDatum(typelem),
Int32GetDatum(typeinfo->attrs[i]->atttypmod)));
- printatt((unsigned) i + 1, typeinfo->attrs[i], value);
+ printatt((unsigned) i + 1, typeinfo->attrs[i], value);
- /* Clean up detoasted copy, if any */
- if (attr != origattr)
- pfree(DatumGetPointer(attr));
- pfree(value);
- }
+ pfree(value);
+
+ /* Clean up detoasted copy, if any */
+ if (attr != origattr)
+ pfree(DatumGetPointer(attr));
}
printf("\t----\n");
}
@@ -542,7 +557,7 @@ debugtup(HeapTuple tuple, TupleDesc typeinfo, DestReceiver *self)
* We use a different message type, i.e. 'B' instead of 'D' to
* indicate a tuple in internal (binary) form.
*
- * This is largely same as printtup_20, except we don't use the typout func.
+ * This is largely same as printtup_20, except we use binary formatting.
* ----------------
*/
static void
@@ -587,83 +602,41 @@ printtup_internal_20(HeapTuple tuple, TupleDesc typeinfo, DestReceiver *self)
/*
* send the attributes of this tuple
*/
-#ifdef IPORTAL_DEBUG
- fprintf(stderr, "sending tuple with %d atts\n", natts);
-#endif
-
for (i = 0; i < natts; ++i)
{
PrinttupAttrInfo *thisState = myState->myinfo + i;
Datum origattr,
attr;
bool isnull;
- int32 len;
+ bytea *outputbytes;
origattr = heap_getattr(tuple, i + 1, typeinfo, &isnull);
if (isnull)
continue;
- /* send # of bytes, and opaque data */
- if (thisState->typisvarlena)
- {
- /*
- * If we have a toasted datum, must detoast before sending.
- */
- attr = PointerGetDatum(PG_DETOAST_DATUM(origattr));
-
- len = VARSIZE(attr) - VARHDRSZ;
- pq_sendint(&buf, len, VARHDRSZ);
- pq_sendbytes(&buf, VARDATA(attr), len);
+ Assert(thisState->format == 1);
-#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
-
- /* Clean up detoasted copy, if any */
- if (attr != origattr)
- pfree(DatumGetPointer(attr));
- }
+ /*
+ * If we have a toasted datum, forcibly detoast it here to
+ * avoid memory leakage inside the type's output routine.
+ */
+ if (thisState->typisvarlena)
+ attr = PointerGetDatum(PG_DETOAST_DATUM(origattr));
else
- {
- /* fixed size or cstring */
attr = origattr;
- len = typeinfo->attrs[i]->attlen;
- if (len <= 0)
- {
- /* it's a cstring */
- Assert(len == -2 && !typeinfo->attrs[i]->attbyval);
- len = strlen(DatumGetCString(attr)) + 1;
- }
- pq_sendint(&buf, len, sizeof(int32));
- if (typeinfo->attrs[i]->attbyval)
- {
- Datum datumBuf;
-
- /*
- * We need this horsing around because we don't know how
- * shorter data values are aligned within a Datum.
- */
- store_att_byval(&datumBuf, attr, len);
- pq_sendbytes(&buf, (char *) &datumBuf, len);
-#ifdef IPORTAL_DEBUG
- fprintf(stderr, "byval length %d data %ld\n", len,
- (long) attr);
-#endif
- }
- else
- {
- pq_sendbytes(&buf, DatumGetPointer(attr), len);
-#ifdef IPORTAL_DEBUG
- fprintf(stderr, "byref length %d data %p\n", len,
- DatumGetPointer(attr));
-#endif
- }
- }
+
+ outputbytes = DatumGetByteaP(FunctionCall2(&thisState->finfo,
+ attr,
+ ObjectIdGetDatum(thisState->typelem)));
+ /* We assume the result will not have been toasted */
+ pq_sendint(&buf, VARSIZE(outputbytes) - VARHDRSZ, 4);
+ pq_sendbytes(&buf, VARDATA(outputbytes),
+ VARSIZE(outputbytes) - VARHDRSZ);
+ pfree(outputbytes);
+
+ /* Clean up detoasted copy, if any */
+ if (attr != origattr)
+ pfree(DatumGetPointer(attr));
}
pq_endmessage(&buf);