fix(logging): Add setddldebuglevel command (#3312) (#3344)

dbcon/ddlpackage/CMakeLists.txt

@@ -32,6 +32,7 @@ ADD_LIBRARY(ddlpackage SHARED
     markpartition.cpp
     restorepartition.cpp
     droppartition.cpp
+    debugstatement.cpp
     ${BISON_ddl_gram_OUTPUTS}
     ${FLEX_ddl_scan_OUTPUTS}
 )

dbcon/ddlpackage/ddlpkg.h

@@ -332,7 +332,8 @@ enum DDL_SERIAL_TYPE
   DDL_TRUNC_TABLE_STATEMENT,
   DDL_MARK_PARTITION_STATEMENT,
   DDL_RESTORE_PARTITION_STATEMENT,
-  DDL_DROP_PARTITION_STATEMENT
+  DDL_DROP_PARTITION_STATEMENT,
+  DDL_DEBUG_STATEMENT
 };
 
 /** @brief An abstract base for TableDef, ColumnDef, ...
@@ -1319,8 +1320,10 @@ struct AlterTableStatement : public SqlStatement
 
   QualifiedName* fTableName;
   AlterTableActionList fActions;
+
  private:
   long fTimeZone;
+
  public:
 };
 
@@ -1441,6 +1444,30 @@ struct DropTableStatement : public SqlStatement
   bool fCascade;
 };
 
+/** @brief DebugStatement
+ */
+struct DebugDDLStatement : public SqlStatement
+{
+  /** @brief Deserialize from ByteStream */
+  EXPORT virtual int unserialize(messageqcpp::ByteStream& bs);
+
+  /** @brief Serialize to ByteStream */
+  EXPORT virtual int serialize(messageqcpp::ByteStream& bs);
+
+  DebugDDLStatement(uint32_t debugLevel);
+
+  EXPORT DebugDDLStatement();
+
+  /** @brief Dump to stdout. */
+  EXPORT std::ostream& put(std::ostream& os) const;
+
+  virtual ~DebugDDLStatement()
+  {
+  }
+
+  uint32_t fDebugLevel;
+};
+
 /** @brief TruncTableStatement represents the drop table operation
  */
 struct TruncTableStatement : public SqlStatement

dbcon/ddlpackage/debugstatement.cpp

@@ -0,0 +1,40 @@
+/* Copyright (C) 2024 MariaDB Corporation
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; version 2 of
+   the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA. */
+
+#define DDLPKG_DLLEXPORT
+#include "ddlpkg.h"
+#undef DDLPKG_DLLEXPORT
+
+using namespace std;
+
+namespace ddlpackage
+{
+DebugDDLStatement::DebugDDLStatement(uint32_t debugLevel)
+: fDebugLevel(debugLevel)
+{
+}
+
+DebugDDLStatement::DebugDDLStatement()
+: fDebugLevel(0)
+{
+}
+
+ostream& DebugDDLStatement::put(ostream& os) const
+{
+  os << "DDL debug level: " << fDebugLevel << endl;
+  return os;
+}
+}  // namespace ddlpackage

dbcon/ddlpackage/serialize.cpp

@@ -429,6 +429,21 @@ int DropTableStatement::serialize(ByteStream& bytestream)
   return ret;
 }
 
+/** @brief Construct from Bytestream */
+int DebugDDLStatement::unserialize(ByteStream& bytestream)
+{
+  bytestream >> fDebugLevel;
+  return 1;
+}
+
+/** @brief Serialize to ByteStream */
+int DebugDDLStatement::serialize(ByteStream& bytestream)
+{
+  bytestream << (quadbyte)DDL_DEBUG_STATEMENT;
+  bytestream << fDebugLevel;
+  return 1;
+}
+
 ///////////////////////////////////////
 /// TruncTableStatement Serialization
 ///////////////////////////////////////