New syntax:

CREATE TABLE t1(a NVARCHAR(10))
This is for compatibility with MSSQL, DB2, Informix and some other DBMSs.

Note, standard SQL doesn't have "NVARCHAR" syntax.
There are only these syntaxes in SQL2003:
 NATIONAL VARCHAR
 NCHAR VARCHAR
 NATIONAL CHARACTER VARYING 
 NCHAR VARYING

- Tests were added for all the above syntaxes.


sql/lex.h:
  New syntax:
  
  CREATE TABLE t1(a NVARCHAR(10))
  This is for compatibility with MSSQL, DB2, Informix and some other DBMSs.
  
  Note, standard SQL doesn't have "NVARCHAR" syntax.
  There are only these syntaxes in SQL2003:
   NATIONAL VARCHAR
   NCHAR VARCHAR
   NATIONAL CHARACTER VARYING 
   NCHAR VARYING
sql/sql_yacc.yy:
  New syntax:
  
  CREATE TABLE t1(a NVARCHAR(10))
  This is for compatibility with MSSQL, DB2, Informix and some other DBMSs.
  
  Note, standard SQL doesn't have "NVARCHAR" syntax.
  There are only these syntaxes in SQL2003:
   NATIONAL VARCHAR
   NCHAR VARCHAR
   NATIONAL CHARACTER VARYING 
   NCHAR VARYING

1 files changed, 3 insertions, 0 deletions

diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index 54d708fef04..2a35c03f3b4 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -302,6 +302,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
 %token	NEW_SYM
 %token	NCHAR_SYM
 %token	NCHAR_STRING
+%token  NVARCHAR_SYM
 %token	NOT
 %token	NO_SYM
 %token	NULL_SYM
@@ -1339,6 +1340,7 @@ varchar:
 
 nvarchar:
 	NATIONAL_SYM VARCHAR {}
+	| NVARCHAR_SYM {}
 	| NCHAR_SYM VARCHAR {}
 	| NATIONAL_SYM CHAR_SYM VARYING {}
 	| NCHAR_SYM VARYING {}
@@ -4568,6 +4570,7 @@ keyword:
 	| NEW_SYM		{}
 	| NO_SYM		{}
 	| NONE_SYM		{}
+	| NVARCHAR_SYM		{}
 	| OFFSET_SYM		{}
 	| OLD_PASSWORD		{}
 	| OPEN_SYM		{}