Added support for the embedded OIDs found in SODA documents in Oracle

Database 23c.

Author: anthony-tuininga

doc/src/release_notes.rst

@@ -79,6 +79,8 @@ Common Changes
     ``ORA-00932: inconsistent data types`` is raised (which can occur if a
     table or view is recreated with a data type that is incompatible with
     the column's previous data type).
+#)  Added support for the embedded OIDs found in SODA documents in Oracle
+    Database 23c.
 #)  The ``repr()`` value of the DbObject class now shows the string "DbObject"
     instead of the string "Object" for consistency with the name of the class
     and the other ``repr()`` values for DbObjectType and DbObjectAttr.

src/oracledb/impl/thin/constants.pxi

@@ -588,6 +588,7 @@ cdef enum:
     TNS_JSON_TYPE_INTERVAL_DS = 0x3e
     TNS_JSON_TYPE_TIMESTAMP_TZ = 0x7c
     TNS_JSON_TYPE_TIMESTAMP7 = 0x7d
+    TNS_JSON_TYPE_ID = 0x7e
     TNS_JSON_TYPE_BINARY_FLOAT = 0x7f
     TNS_JSON_TYPE_OBJECT = 0x84
     TNS_JSON_TYPE_ARRAY = 0xc0

src/oracledb/impl/thin/oson.pyx

@@ -158,6 +158,10 @@ cdef class OsonDecoder(Buffer):
             return ptr[:temp32].decode()
         elif node_type == TNS_JSON_TYPE_NUMBER_LENGTH_UINT8:
             return self.read_oracle_number(NUM_TYPE_DECIMAL)
+        elif node_type == TNS_JSON_TYPE_ID:
+            self.read_ub1(&temp8)
+            ptr = self._get_raw(temp8)
+            return ptr[:temp8]
         elif node_type == TNS_JSON_TYPE_BINARY_LENGTH_UINT16:
             self.read_uint16(&temp16)
             ptr = self._get_raw(temp16)