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get_seq_name should truncate name to NAMEDATALEN, so that this works:

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create sequence a1234567890123456789012345678901234567890;
select nextval('a1234567890123456789012345678901234567890');
This commit is contained in:
Tom Lane 2001-06-06 22:03:48 +00:00
parent b67fc0079c
commit a6697b3614
1 changed files with 21 additions and 2 deletions
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23
src/backend/commands/sequence.c
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@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/sequence.c,v 1.57 2001/06/01 19:52:24 tgl Exp $ * $Header: /cvsroot/pgsql/src/backend/commands/sequence.c,v 1.58 2001/06/06 22:03:48 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -22,6 +22,10 @@
#include "miscadmin.h" #include "miscadmin.h"
#include "utils/acl.h" #include "utils/acl.h"
#include "utils/builtins.h" #include "utils/builtins.h"
#ifdef MULTIBYTE
#include "mb/pg_wchar.h"
#endif
#define SEQ_MAGIC 0x1717 #define SEQ_MAGIC 0x1717
@ -523,7 +527,8 @@ setval_and_iscalled(PG_FUNCTION_ARGS)
/* /*
* Given a 'text' parameter to a sequence function, extract the actual * Given a 'text' parameter to a sequence function, extract the actual
* sequence name. We downcase the name if it's not double-quoted. * sequence name. We downcase the name if it's not double-quoted,
* and truncate it if it's too long.
* *
* This is a kluge, really --- should be able to write nextval(seqrel). * This is a kluge, really --- should be able to write nextval(seqrel).
*/ */
@ -557,6 +562,20 @@ get_seq_name(text *seqin)
*rawname = tolower((unsigned char) *rawname); *rawname = tolower((unsigned char) *rawname);
} }
} }
/* Truncate name if it's overlength; again, should match scan.l */
if (strlen(seqname) >= NAMEDATALEN)
{
#ifdef MULTIBYTE
int len;
len = pg_mbcliplen(seqname, i, NAMEDATALEN-1);
seqname[len] = '\0';
#else
seqname[NAMEDATALEN-1] = '\0';
#endif
}
return seqname; return seqname;
} }