diff --git a/src/common/backend/utils/cache/relcache.cpp b/src/common/backend/utils/cache/relcache.cpp
index fa87ca9ef..3a84ed576 100755
--- a/src/common/backend/utils/cache/relcache.cpp
+++ b/src/common/backend/utils/cache/relcache.cpp
@@ -1367,7 +1367,7 @@ HeapTuple ScanPgRelation(Oid targetRelId, bool indexOK, bool force_non_historic)
      * relfilenode of non mapped system relations during decoding.
      */
     snapshot = SnapshotNow;
-    if (HistoricSnapshotActive() && !force_non_historic || IS_EXRTO_RECOVERY_IN_PROGRESS) {
+    if ((HistoricSnapshotActive() && !force_non_historic) || IS_EXRTO_RECOVERY_IN_PROGRESS) {
         snapshot = GetCatalogSnapshot();
     }
 
diff --git a/src/gausskernel/optimizer/commands/dbcommands.cpp b/src/gausskernel/optimizer/commands/dbcommands.cpp
index 57d17e67d..afa557cba 100644
--- a/src/gausskernel/optimizer/commands/dbcommands.cpp
+++ b/src/gausskernel/optimizer/commands/dbcommands.cpp
@@ -790,7 +790,7 @@ void check_encoding_locale_matches(int encoding, const char* collate, const char
 #ifdef WIN32
             encoding == PG_UTF8 ||
 #endif
-            (encoding == PG_SQL_ASCII && superuser() ||
+            ((encoding == PG_SQL_ASCII && superuser()) ||
             (encoding == PG_GB18030_2022 && ctype_encoding == PG_GB18030))))
         ereport(ERROR,
             (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
@@ -802,7 +802,7 @@ void check_encoding_locale_matches(int encoding, const char* collate, const char
 #ifdef WIN32
             encoding == PG_UTF8 ||
 #endif
-            (encoding == PG_SQL_ASCII && superuser() ||
+            ((encoding == PG_SQL_ASCII && superuser()) ||
             (encoding == PG_GB18030_2022 && collate_encoding == PG_GB18030))))
         ereport(ERROR,
             (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
diff --git a/src/gausskernel/process/tcop/pquery.cpp b/src/gausskernel/process/tcop/pquery.cpp
index 9827b9f40..d8c83e3a8 100644
--- a/src/gausskernel/process/tcop/pquery.cpp
+++ b/src/gausskernel/process/tcop/pquery.cpp
@@ -1299,7 +1299,7 @@ bool PortalRun(
         }
 
         /* PortalRun using unique_sql_start_time as unique sql elapse start time */
-        if (IsNeedUpdateUniqueSQLStat(portal) && IS_UNIQUE_SQL_TRACK_TOP && IsTopUniqueSQL()
+        if ((IsNeedUpdateUniqueSQLStat(portal) && IS_UNIQUE_SQL_TRACK_TOP && IsTopUniqueSQL())
             || IS_UNIQUE_SQL_TRACK_ALL) {
             instr_unique_sql_report_elapse_time(u_sess->unique_sql_cxt.unique_sql_start_time);
         }