!5958 【处理8.0 core问题】blob字符序断言导致core, 添加IsBinaryType的hook函数，处理tinyblob类型

Merge pull request !5958 from lukeman/master

src/common/backend/parser/parse_type.cpp

@@ -1773,6 +1773,9 @@ Oid LookupTypeInPackage(List* typeNames, const char* typeName, Oid pkgOid, Oid n
 
 bool IsBinaryType(Oid typid)
 {
+    if (u_sess->hook_cxt.isBinaryType != NULL) {
+        return ((isBinaryType)(u_sess->hook_cxt.isBinaryType))(typid);
+    }
     return ((typid) == BLOBOID ||
             (typid) == BYTEAOID);
 }
@@ -1807,4 +1810,4 @@ TypeTupStatus GetTypeTupStatus(Type typ)
         return (UNDEFINEDOID == HeapTupleGetOid(typ) ? UndefineTypeTup : NormalTypeTup);
     }
     return InvalidTypeTup;
-}
+}

src/include/knl/knl_session.h

@@ -2947,6 +2947,7 @@ typedef struct knl_u_hook_context {
     void *deparseQueryHook;
     void *checkSqlFnRetvalHook;
     void *typeTransfer;
+    void *isBinaryType;
     void *forTsdbHook;
     void *pluginPlannerHook;
     void *groupingplannerHook;

src/include/parser/parse_type.h

@@ -65,6 +65,7 @@ extern HeapTuple FindPkgVariableType(ParseState* pstate, const TypeName* typname
     TypeDependExtend* depend_extend = NULL);
 extern char* CastPackageTypeName(const char* typName, Oid  pkgOid, bool isPackage, bool isPublic = true);
 extern bool IsBinaryType(Oid typid);
+typedef bool (*isBinaryType)(Oid typid);
 #define ISCOMPLEX(typeid) (typeidTypeRelid(typeid) != InvalidOid)
 extern void check_type_supports_multi_charset(Oid typid, bool allow_array);
 extern char* ParseTypeName(const char* typName, Oid pkgOid);