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Change parse-time representation of float literals (which include oversize

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integers) to be strings instead of 'double'.  We convert from string form
to internal representation only after type resolution has determined the
correct type for the constant.  This eliminates loss-of-precision worries
and gets rid of the change in behavior seen at 17 digits with the
previous kluge.
This commit is contained in:
Tom Lane
2000-02-21 18:47:12 +00:00
parent ee97d103cc
commit 393f313227
12 changed files with 186 additions and 186 deletions
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17
src/backend/storage/buffer/bufmgr.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.73 2000/02/17 05:00:38 inoue Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v 1.74 2000/02/21 18:47:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -453,6 +453,7 @@ BufferAlloc(Relation reln,
*/
Assert(buf->refcount == 0);
buf->refcount = 1;
Assert(PrivateRefCount[BufferDescriptorGetBuffer(buf) - 1] == 0);
PrivateRefCount[BufferDescriptorGetBuffer(buf) - 1] = 1;
if (buf->flags & BM_DIRTY)
@ -542,6 +543,7 @@ BufferAlloc(Relation reln,
inProgress = FALSE;
buf->flags &= ~BM_IO_IN_PROGRESS;
TerminateBufferIO(buf);
Assert(PrivateRefCount[BufferDescriptorGetBuffer(buf)-1] == 1);
PrivateRefCount[BufferDescriptorGetBuffer(buf) - 1] = 0;
buf->refcount--;
buf = (BufferDesc *) NULL;
@ -568,6 +570,7 @@ BufferAlloc(Relation reln,
{
TerminateBufferIO(buf);
/* give up the buffer since we don't need it any more */
Assert(PrivateRefCount[BufferDescriptorGetBuffer(buf)-1] == 1);
PrivateRefCount[BufferDescriptorGetBuffer(buf) - 1] = 0;
Assert(buf->refcount > 0);
buf->refcount--;
@ -1469,8 +1472,16 @@ ReleaseRelationBuffers(Relation rel)
if (!(buf->flags & BM_FREE))
{
/* Assert checks that buffer will actually get freed! */
Assert(PrivateRefCount[i - 1] == 1 &&
buf->refcount == 1);
Assert(buf->refcount == 1);
if (PrivateRefCount[i - 1] <= 0)
{
fprintf(stderr, "Nonpositive PrivateRefCount on buffer for %s\n",
RelationGetRelationName(rel));
fflush(stderr);
* ((char *) 0) = 0;
abort();
}
Assert(PrivateRefCount[i - 1] == 1);
/* ReleaseBuffer expects we do not hold the lock at entry */
SpinRelease(BufMgrLock);
holding = false;