postgres/contrib/cube/cubedata.h

/* $PostgreSQL: pgsql/contrib/cube/cubedata.h,v 1.10 2009/06/11 14:48:50 momjian Exp $ */

#define CUBE_MAX_DIM (100)

typedef struct NDBOX
{
	int32		vl_len_;		/* varlena header (do not touch directly!) */
	unsigned int dim;
	double		x[1];
} NDBOX;

#define DatumGetNDBOX(x)	((NDBOX*)DatumGetPointer(x))
#define PG_GETARG_NDBOX(x)	DatumGetNDBOX( PG_DETOAST_DATUM(PG_GETARG_DATUM(x)) )
#define PG_RETURN_NDBOX(x)	PG_RETURN_POINTER(x)
8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list provided by Andrew. 2009-06-11 14:49:15 +00:00			`/* $PostgreSQL: pgsql/contrib/cube/cubedata.h,v 1.10 2009/06/11 14:48:50 momjian Exp $ */`
Add CVS tag lines to files that were lacking them. 2006-03-11 04:38:42 +00:00
This is a comprehensive set of diffs (versus current CVS) that replaces those attached to the same message with the Earth Distance patches. Recent changes include changing the subscript in one place I forgot in the previous bugfix patch. A couple of added regression tests, which should help catch this mistake if it reappears. I also put in a limit of 100 dimensions in cube_large and cube_in to prevent making it easy to create very large cubes. Changing one define in cubedata.h will raise the limit if some needs more dimensions. Bruno Wolff III 2002-09-12 00:26:00 +00:00			`#define CUBE_MAX_DIM (100)`
Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len). Get rid of VARATT_SIZE and VARATT_DATA, which were simply redundant with VARSIZE and VARDATA, and as a consequence almost no code was using the longer names. Rename the length fields of struct varlena and various derived structures to catch anyplace that was accessing them directly; and clean up various places so caught. In itself this patch doesn't change any behavior at all, but it is necessary infrastructure if we hope to play any games with the representation of varlena headers. Greg Stark and Tom Lane 2007-02-27 23:48:10 +00:00
pgindent run. Make it all clean. 2001-03-22 04:01:46 +00:00			`typedef struct NDBOX`
			`{`
Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len). Get rid of VARATT_SIZE and VARATT_DATA, which were simply redundant with VARSIZE and VARDATA, and as a consequence almost no code was using the longer names. Rename the length fields of struct varlena and various derived structures to catch anyplace that was accessing them directly; and clean up various places so caught. In itself this patch doesn't change any behavior at all, but it is necessary infrastructure if we hope to play any games with the representation of varlena headers. Greg Stark and Tom Lane 2007-02-27 23:48:10 +00:00			`int32 vl_len_; /* varlena header (do not touch directly!) */`
pgindent run. Make it all clean. 2001-03-22 04:01:46 +00:00			`unsigned int dim;`
The changes I have made are described in CHANGES. This was based on diffs to 7.3-devel and may not be applicable to 7.2. I have included a change covered by a previous bugfix patch I submitted (the problem with -.1 not being accepted by cube_in). It does not include a fix for the potential buffer overrun issue I reported for cube_yyerror in cubeparse.y. Bruno Wolff III 2002-08-29 23:03:58 +00:00			`double x[1];`
8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list provided by Andrew. 2009-06-11 14:49:15 +00:00			`} NDBOX;`
Athough cube is a varlena type, nowhere was a detoasting of cube's value, so fix it. Add macroses DatumGetNDBOX, PG_GETARG_NDBOX and PG_RETURN_NDBOX. Backpatch for 8.2 too. Previous versions use version 0 calling conventions. And fmgr code detoast values for user-defined functions. 2007-03-07 21:21:12 +00:00
			`#define DatumGetNDBOX(x) ((NDBOX*)DatumGetPointer(x))`
			`#define PG_GETARG_NDBOX(x) DatumGetNDBOX( PG_DETOAST_DATUM(PG_GETARG_DATUM(x)) )`
			`#define PG_RETURN_NDBOX(x) PG_RETURN_POINTER(x)`