支持FOREIGN_KEY_CHECKS参数

src/bin/gs_guc/cluster_guc.conf

@@ -572,6 +572,7 @@ ustore_attr|string|0,0|NULL|NULL|
 enable_ustore|bool|0,0|NULL|Enable to create ustore table|
 enable_default_ustore_table|bool|0,0|NULL|Enable to create ustore table by default|
 enable_gtt_concurrent_truncate|bool|0,0|NULL|Enable concurrent truncate table for GTT|
+foreign_key_checks|bool|0,0|NULL|Enable foreign key check on insert, update or drop operation,only applicable to b-format db.|
 reserve_space_for_nullable_atts|bool|0,0|NULL|Enable reserve space for nullable attributes, only applicable to ustore|
 undo_space_limit_size|int|819200,17179869184|kB|Maximum physical space of the undo command|
 undo_limit_size_per_transaction|int|2048,17179869184|kB|Maximum space for allocating undo resources in a transaction|

src/common/backend/utils/misc/guc.cpp

@@ -2117,6 +2117,20 @@ static void InitConfigureNamesBool()
             NULL,
             NULL
         },
+        {{"foreign_key_checks",
+            PGC_USERSET,
+            NODE_ALL,
+            QUERY_TUNING,
+            gettext_noop("Enable foreign key check on insert, update or drop operation,"
+            "only applicable to b-format db."
+            ),
+            NULL},
+            &u_sess->attr.attr_common.foreign_key_checks,
+            true,
+            NULL,
+            NULL,
+            NULL
+        },
         /* End-of-list marker */
         {{NULL,
             (GucContext)0,

src/include/knl/knl_guc/knl_session_attr_common.h

@@ -250,6 +250,7 @@ typedef struct knl_session_attr_common {
     bool b_compatibility_user_host_auth;
     int time_record_level;
     bool enable_record_nettime;
+    bool foreign_key_checks;
 } knl_session_attr_common;
 
 #endif /* SRC_INCLUDE_KNL_KNL_SESSION_ATTR_COMMON_H_ */