IB, SQL: InnoDB partitioning [closes #118]

* native InnoDB partitioning for BY SYSTEM_TIME partitions.

sql/sql_tablespace.h

@@ -19,6 +19,41 @@
 class THD;
 class st_alter_tablespace;
 
+/**
+ Enumerate possible status of a identifier name while determining
+ its validity
+*/
+enum enum_ident_name_check
+{
+  IDENT_NAME_OK,
+  IDENT_NAME_WRONG,
+  IDENT_NAME_TOO_LONG
+};
+
+/**
+  Check if tablespace name is valid
+
+  @param tablespace_name        Name of the tablespace
+
+  @note Tablespace names are not reflected in the file system, so
+        character case conversion or consideration is not relevant.
+
+  @note Checking for path characters or ending space is not done.
+        The only checks are for identifier length, both in terms of
+        number of characters and number of bytes.
+
+  @retval  IDENT_NAME_OK        Identifier name is ok (Success)
+  @retval  IDENT_NAME_WRONG     Identifier name is wrong, if length == 0
+                                (ER_WRONG_TABLESPACE_NAME)
+  @retval  IDENT_NAME_TOO_LONG  Identifier name is too long if it is greater
+                                than 64 characters (ER_TOO_LONG_IDENT)
+
+  @note In case of IDENT_NAME_TOO_LONG or IDENT_NAME_WRONG, the function
+        reports an error (using my_error()).
+*/
+
+enum_ident_name_check check_tablespace_name(const char *tablespace_name);
+
 int mysql_alter_tablespace(THD* thd, st_alter_tablespace *ts_info);
 
 #endif /* SQL_TABLESPACE_INCLUDED */