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authorPavan Deolasee2015-05-05 09:19:18 +0000
committerPavan Deolasee2015-05-05 09:19:18 +0000
commit73fa25c67cbfa24c03e28c96bf356f2592671730 (patch)
tree10ded7e26abd78d93658cb72fc5cb9d4672eff2a /contrib/cube/cubedata.h
parentda4d108859bcd7a308ca75aba54281e32968822c (diff)
parent4a9ab6d8619817f9e3989c99b65140e19041dab7 (diff)
Merge branch 'XL_MASTER_MERGE_9_4' into XL_NEW_MASTER
Conflicts: src/test/regress/expected/aggregates.out src/test/regress/expected/create_index.out src/test/regress/expected/inherit.out src/test/regress/expected/join.out src/test/regress/expected/window.out src/test/regress/expected/with.out
Diffstat (limited to 'contrib/cube/cubedata.h')
-rw-r--r--contrib/cube/cubedata.h39
1 files changed, 37 insertions, 2 deletions
diff --git a/contrib/cube/cubedata.h b/contrib/cube/cubedata.h
index fd0c26a381..5d44e11081 100644
--- a/contrib/cube/cubedata.h
+++ b/contrib/cube/cubedata.h
@@ -4,11 +4,46 @@
typedef struct NDBOX
{
- int32 vl_len_; /* varlena header (do not touch directly!) */
- unsigned int dim;
+ /* varlena header (do not touch directly!) */
+ int32 vl_len_;
+
+ /*----------
+ * Header contains info about NDBOX. For binary compatibility with old
+ * versions, it is defined as "unsigned int".
+ *
+ * Following information is stored:
+ *
+ * bits 0-7 : number of cube dimensions;
+ * bits 8-30 : unused, initialize to zero;
+ * bit 31 : point flag. If set, the upper right coordinates are not
+ * stored, and are implicitly the same as the lower left
+ * coordinates.
+ *----------
+ */
+ unsigned int header;
+
+ /*
+ * Variable length array. The lower left coordinates for each dimension
+ * come first, followed by upper right coordinates unless the point flag
+ * is set.
+ */
double x[1];
} NDBOX;
+#define POINT_BIT 0x80000000
+#define DIM_MASK 0x7fffffff
+
+#define IS_POINT(cube) ( ((cube)->header & POINT_BIT) != 0 )
+#define SET_POINT_BIT(cube) ( (cube)->header |= POINT_BIT )
+#define DIM(cube) ( (cube)->header & DIM_MASK )
+#define SET_DIM(cube, _dim) ( (cube)->header = ((cube)->header & ~DIM_MASK) | (_dim) )
+
+#define LL_COORD(cube, i) ( (cube)->x[i] )
+#define UR_COORD(cube, i) ( IS_POINT(cube) ? (cube)->x[i] : (cube)->x[(i) + DIM(cube)] )
+
+#define POINT_SIZE(_dim) (offsetof(NDBOX, x[0]) + sizeof(double)*(_dim))
+#define CUBE_SIZE(_dim) (offsetof(NDBOX, x[0]) + sizeof(double)*(_dim)*2)
+
#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)