* To encode the length and offset of the variable-length portion of each
* node in a compact way, the JEntry stores only the end offset within the
* variable-length portion of the container node. For the first JEntry in the
- * container's JEntry array, that equals to the length of the node data. For
- * convenience, the JENTRY_ISFIRST flag is set. The begin offset and length
- * of the rest of the entries can be calculated using the end offset of the
- * previous JEntry in the array.
+ * container's JEntry array, that equals to the length of the node data. The
+ * begin offset and length of the rest of the entries can be calculated using
+ * the end offset of the previous JEntry in the array.
*
* Overall, the Jsonb struct requires 4-bytes alignment. Within the struct,
* the variable-length portion of some node types is aligned to a 4-byte
* The least significant 28 bits store the end offset of the entry (see
* JBE_ENDPOS, JBE_OFF, JBE_LEN macros below). The next three bits
* are used to store the type of the entry. The most significant bit
- * is set on the first entry in an array of JEntrys.
+ * is unused, and should be set to zero.
*/
typedef uint32 JEntry;
#define JENTRY_ISCONTAINER 0x50000000 /* array or object */
/* Note possible multiple evaluations */
-#define JBE_ISFIRST(je_) (((je_) & JENTRY_ISFIRST) != 0)
#define JBE_ISSTRING(je_) (((je_) & JENTRY_TYPEMASK) == JENTRY_ISSTRING)
#define JBE_ISNUMERIC(je_) (((je_) & JENTRY_TYPEMASK) == JENTRY_ISNUMERIC)
#define JBE_ISCONTAINER(je_) (((je_) & JENTRY_TYPEMASK) == JENTRY_ISCONTAINER)