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diff --git a/sql/sql_statistics.h b/sql/sql_statistics.h
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+/* Copyright 2006-2008 MySQL AB, 2008 Sun Microsystems, Inc.
+
+   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 St, Fifth Floor, Boston, MA  02110-1301  USA */
+
+#ifndef SQL_STATISTICS_H
+#define SQL_STATISTICS_H
+
+/* 
+  These enumeration types comprise the dictionary of three
+  statistical tables table_stat, column_stat and index_stat
+  as they defined in ../scripts/mysql_system_tables.sql.
+
+  It would be nice if the declarations of these types were
+  generated automatically by the table definitions.   
+*/
+
+enum enum_stat_tables
+{
+  TABLE_STAT,
+  COLUMN_STAT,
+  INDEX_STAT,
+};
+
+enum enum_table_stat_col
+{
+  TABLE_STAT_DB_NAME,
+  TABLE_STAT_TABLE_NAME,
+  TABLE_STAT_CARDINALITY
+};
+
+enum enum_column_stat_col
+{
+  COLUMN_STAT_DB_NAME,
+  COLUMN_STAT_TABLE_NAME,
+  COLUMN_STAT_COLUMN_NAME,
+  COLUMN_STAT_MIN_VALUE,
+  COLUMN_STAT_MAX_VALUE,
+  COLUMN_STAT_NULLS_RATIO,
+  COLUMN_STAT_AVG_LENGTH,
+  COLUMN_STAT_AVG_FREQUENCY
+};
+
+enum enum_index_stat_col
+{
+  INDEX_STAT_DB_NAME,
+  INDEX_STAT_TABLE_NAME,
+  INDEX_STAT_INDEX_NAME,
+  INDEX_STAT_PREFIX_ARITY,
+  INDEX_STAT_AVG_FREQUENCY
+};
+
+#endif /* SQL_STATISTICS_H */