MDEV-20735 Allow non-reserved keywords as user defined type names

mysql-test/main/parser.result

@@ -1809,5 +1809,36 @@ ERROR HY000: Unknown data type: 'DUAL'
 SELECT CAST(1 AS DUAL);
 ERROR HY000: Unknown data type: 'DUAL'
 #
+# MDEV-20735 Allow non-reserved keywords as user defined type names
+#
+CREATE TABLE t1 (a ASCII);
+ERROR HY000: Unknown data type: 'ASCII'
+SELECT CAST(1 AS ASCII);
+ERROR HY000: Unknown data type: 'ASCII'
+CREATE TABLE t1 (a LANGUAGE);
+ERROR HY000: Unknown data type: 'LANGUAGE'
+SELECT CAST(1 AS LANGUAGE);
+ERROR HY000: Unknown data type: 'LANGUAGE'
+CREATE TABLE t1 (a CLOSE);
+ERROR HY000: Unknown data type: 'CLOSE'
+SELECT CAST(1 AS CLOSE);
+ERROR HY000: Unknown data type: 'CLOSE'
+CREATE TABLE t1 (a NAMES);
+ERROR HY000: Unknown data type: 'NAMES'
+SELECT CAST(1 AS NAMES);
+ERROR HY000: Unknown data type: 'NAMES'
+CREATE TABLE t1 (a END);
+ERROR HY000: Unknown data type: 'END'
+SELECT CAST(1 AS END);
+ERROR HY000: Unknown data type: 'END'
+CREATE TABLE t1 (a GLOBAL);
+ERROR HY000: Unknown data type: 'GLOBAL'
+SELECT CAST(1 AS GLOBAL);
+ERROR HY000: Unknown data type: 'GLOBAL'
+CREATE TABLE t1 (a ACTION);
+ERROR HY000: Unknown data type: 'ACTION'
+SELECT CAST(1 AS ACTION);
+ERROR HY000: Unknown data type: 'ACTION'
+#
 # End of 10.5 tests
 #

mysql-test/main/parser.test

@@ -1581,6 +1581,46 @@ CREATE TABLE t1 (a DUAL);
 --error ER_UNKNOWN_DATA_TYPE
 SELECT CAST(1 AS DUAL);
 
+--echo #
+--echo # MDEV-20735 Allow non-reserved keywords as user defined type names
+--echo #
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a ASCII);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS ASCII);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a LANGUAGE);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS LANGUAGE);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a CLOSE);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS CLOSE);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a NAMES);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS NAMES);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a END);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS END);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a GLOBAL);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS GLOBAL);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a ACTION);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS ACTION);
+
+
 --echo #
 --echo # End of 10.5 tests
 --echo #

mysql-test/suite/compat/oracle/r/parser.result

@@ -620,5 +620,40 @@ ERROR HY000: Unknown data type: 'DUAL'
 SELECT CAST(1 AS DUAL);
 ERROR HY000: Unknown data type: 'DUAL'
 #
+# MDEV-20735 Allow non-reserved keywords as user defined type names
+#
+CREATE TABLE t1 (a ASCII);
+ERROR HY000: Unknown data type: 'ASCII'
+SELECT CAST(1 AS ASCII);
+ERROR HY000: Unknown data type: 'ASCII'
+CREATE TABLE t1 (a LANGUAGE);
+ERROR HY000: Unknown data type: 'LANGUAGE'
+SELECT CAST(1 AS LANGUAGE);
+ERROR HY000: Unknown data type: 'LANGUAGE'
+CREATE TABLE t1 (a CLOSE);
+ERROR HY000: Unknown data type: 'CLOSE'
+SELECT CAST(1 AS CLOSE);
+ERROR HY000: Unknown data type: 'CLOSE'
+CREATE TABLE t1 (a NAMES);
+ERROR HY000: Unknown data type: 'NAMES'
+SELECT CAST(1 AS NAMES);
+ERROR HY000: Unknown data type: 'NAMES'
+CREATE TABLE t1 (a END);
+ERROR HY000: Unknown data type: 'END'
+SELECT CAST(1 AS END);
+ERROR HY000: Unknown data type: 'END'
+CREATE TABLE t1 (a GLOBAL);
+ERROR HY000: Unknown data type: 'GLOBAL'
+SELECT CAST(1 AS GLOBAL);
+ERROR HY000: Unknown data type: 'GLOBAL'
+CREATE TABLE t1 (a ACTION);
+ERROR HY000: Unknown data type: 'ACTION'
+SELECT CAST(1 AS ACTION);
+ERROR HY000: Unknown data type: 'ACTION'
+CREATE TABLE t1 (a BEGIN);
+ERROR HY000: Unknown data type: 'BEGIN'
+SELECT CAST(1 AS BEGIN);
+ERROR HY000: Unknown data type: 'BEGIN'
+#
 # End of 10.5 tests
 #

mysql-test/suite/compat/oracle/t/parser.test

@@ -427,6 +427,51 @@ CREATE TABLE t1 (a DUAL);
 --error ER_UNKNOWN_DATA_TYPE
 SELECT CAST(1 AS DUAL);
 
+
+--echo #
+--echo # MDEV-20735 Allow non-reserved keywords as user defined type names
+--echo #
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a ASCII);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS ASCII);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a LANGUAGE);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS LANGUAGE);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a CLOSE);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS CLOSE);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a NAMES);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS NAMES);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a END);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS END);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a GLOBAL);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS GLOBAL);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a ACTION);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS ACTION);
+
+--error ER_UNKNOWN_DATA_TYPE
+CREATE TABLE t1 (a BEGIN);
+--error ER_UNKNOWN_DATA_TYPE
+SELECT CAST(1 AS BEGIN);
+
 --echo #
 --echo # End of 10.5 tests
 --echo #

mysql-test/suite/funcs_1/t/storedproc.test

@@ -13752,7 +13752,7 @@ delimiter ;//
 DROP PROCEDURE IF EXISTS handler1;
 
 delimiter //;
---error ER_PARSE_ERROR
+--error ER_UNKNOWN_DATA_TYPE
 CREATE PROCEDURE handler1()
 BEGIN
     declare continueinv handler for sqlstate '2300' set @x2 = 1;
@@ -13776,7 +13776,7 @@ delimiter ;//
 DROP PROCEDURE IF EXISTS handler1;
 
 delimiter //;
---error ER_PARSE_ERROR
+--error ER_UNKNOWN_DATA_TYPE
 CREATE PROCEDURE handler1()
 BEGIN
     declare undoinv handler for sqlstate '2300' set @x2 = 1;
@@ -13800,7 +13800,7 @@ delimiter ;//
 DROP PROCEDURE IF EXISTS handler1;
 
 delimiter //;
---error ER_PARSE_ERROR
+--error ER_UNKNOWN_DATA_TYPE
 CREATE PROCEDURE handler1 ()
 BEGIN
     declare exitinv handler for sqlstate '2300' set @x2 = 1;
@@ -15210,7 +15210,7 @@ delimiter ;//
 DROP PROCEDURE IF EXISTS sp1;
 
 delimiter //;
---error ER_PARSE_ERROR
+--error ER_UNKNOWN_DATA_TYPE
 CREATE PROCEDURE sp1( )
 BEGIN
     declare option handler for sqlstate '02000' set @var2 = 1;
@@ -15300,7 +15300,7 @@ delimiter ;//
 DROP PROCEDURE IF EXISTS sp1;
 
 delimiter //;
---error ER_PARSE_ERROR
+--error ER_UNKNOWN_DATA_TYPE
 CREATE PROCEDURE sp1( )
 BEGIN
     declare privileges handler for sqlstate '02000' set @var2 = 1;
@@ -15360,7 +15360,7 @@ delimiter ;//
 DROP PROCEDURE IF EXISTS sp1;
 
 delimiter //;
---error ER_PARSE_ERROR
+--error ER_UNKNOWN_DATA_TYPE
 CREATE PROCEDURE sp1( )
 BEGIN
     declare read_only handler for sqlstate '02000' set @var2 = 1;

sql/sql_yacc.yy

@@ -1797,6 +1797,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize);
 
 %type <kwd>
         keyword_data_type
+        keyword_cast_type
         keyword_ident
         keyword_label
         keyword_set_special_case
@@ -1812,6 +1813,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize);
         keyword_verb_clause
         charset
         reserved_keyword_udt
+        non_reserved_keyword_udt
 
 %type <table>
         table_ident table_ident_nodb references xid
@@ -6864,6 +6866,11 @@ field_type:
             if (Lex->set_field_type_udt(&$$, $1, $2))
               MYSQL_YYABORT;
           }
+        | non_reserved_keyword_udt float_options srid_option
+          {
+            if (Lex->set_field_type_udt(&$$, $1, $2))
+              MYSQL_YYABORT;
+          }
         ;
 
 field_type_numeric:
@@ -11915,6 +11922,11 @@ cast_type:
             if (Lex->set_cast_type_udt(&$$, $1))
               MYSQL_YYABORT;
           }
+        | non_reserved_keyword_udt
+          {
+            if (Lex->set_cast_type_udt(&$$, $1))
+              MYSQL_YYABORT;
+          }
         ;
 
 cast_type_numeric:
@@ -15798,6 +15810,7 @@ user: user_maybe_role
 /* Keywords which we allow as table aliases. */
 keyword_table_alias:
           keyword_data_type
+        | keyword_cast_type
         | keyword_set_special_case
         | keyword_sp_block_section
         | keyword_sp_head
@@ -15805,11 +15818,13 @@ keyword_table_alias:
         | keyword_sp_var_not_label
         | keyword_sysvar_type
         | keyword_verb_clause
+        | EXCEPTION_ORACLE_SYM
         ;
 
 /* Keyword that we allow for identifiers (except SP labels) */
 keyword_ident:
           keyword_data_type
+        | keyword_cast_type
         | keyword_set_special_case
         | keyword_sp_block_section
         | keyword_sp_head
@@ -15818,6 +15833,7 @@ keyword_ident:
         | keyword_sysvar_type
         | keyword_verb_clause
         | WINDOW_SYM
+        | EXCEPTION_ORACLE_SYM
         ;
 
 /*
@@ -15829,10 +15845,12 @@ keyword_label:
         | keyword_set_special_case
         | keyword_sp_var_and_label
         | keyword_sysvar_type
+        | EXCEPTION_ORACLE_SYM
         ;
 
 keyword_sysvar_name:
           keyword_data_type
+        | keyword_cast_type
         | keyword_set_special_case
         | keyword_sp_block_section
         | keyword_sp_head
@@ -15840,10 +15858,12 @@ keyword_sysvar_name:
         | keyword_sp_var_not_label
         | keyword_verb_clause
         | WINDOW_SYM
+        | EXCEPTION_ORACLE_SYM
         ;
 
 keyword_sp_decl:
           keyword_data_type
+        | keyword_cast_type
         | keyword_set_special_case
         | keyword_sp_block_section
         | keyword_sp_head
@@ -15856,6 +15876,7 @@ keyword_sp_decl:
 
 keyword_set_usual_case:
           keyword_data_type
+        | keyword_cast_type
         | keyword_sp_block_section
         | keyword_sp_head
         | keyword_sp_var_and_label
@@ -15863,6 +15884,17 @@ keyword_set_usual_case:
         | keyword_sysvar_type
         | keyword_verb_clause
         | WINDOW_SYM
+        | EXCEPTION_ORACLE_SYM
+        ;
+
+non_reserved_keyword_udt:
+          keyword_sp_var_not_label
+        | keyword_sp_head
+        | keyword_verb_clause
+        | keyword_set_special_case
+        | keyword_sp_block_section
+        | keyword_sysvar_type
+        | keyword_sp_var_and_label
         ;
 
 /*
@@ -15914,7 +15946,6 @@ keyword_sp_var_not_label:
         | RESTORE_SYM
         | SECURITY_SYM
         | SERVER_SYM
-        | SIGNED_SYM
         | SOCKET_SYM
         | SLAVE
         | SLAVES
@@ -16009,7 +16040,6 @@ keyword_set_special_case:
 */
 keyword_sp_block_section:
           BEGIN_MARIADB_SYM
-        | EXCEPTION_ORACLE_SYM
         | END
         ;
 
@@ -16054,6 +16084,11 @@ keyword_data_type:
         ;
 
 
+keyword_cast_type:
+          SIGNED_SYM
+        ;
+
+
 /*
   These keywords are fine for both SP variable names and SP labels.
 */

sql/sql_yacc_ora.yy

@@ -1266,6 +1266,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize);
 
 %type <kwd>
         keyword_data_type
+        keyword_cast_type
         keyword_ident
         keyword_label
         keyword_set_special_case
@@ -1282,6 +1283,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize);
         keyword_directly_assignable
         charset
         reserved_keyword_udt
+        non_reserved_keyword_udt
 
 %type <table>
         table_ident table_ident_nodb references xid
@@ -6863,6 +6865,11 @@ field_type:
             if (Lex->set_field_type_udt(&$$, $1, $2))
               MYSQL_YYABORT;
           }
+        | non_reserved_keyword_udt float_options srid_option
+          {
+            if (Lex->set_field_type_udt(&$$, $1, $2))
+              MYSQL_YYABORT;
+          }
         ;
 
 
@@ -12014,6 +12021,11 @@ cast_type:
             if (Lex->set_cast_type_udt(&$$, $1))
               MYSQL_YYABORT;
           }
+        | non_reserved_keyword_udt
+          {
+            if (Lex->set_cast_type_udt(&$$, $1))
+              MYSQL_YYABORT;
+          }
         ;
 
 cast_type_numeric:
@@ -15950,6 +15962,7 @@ user: user_maybe_role
 /* Keywords which we allow as table aliases. */
 keyword_table_alias:
           keyword_data_type
+        | keyword_cast_type
         | keyword_set_special_case
         | keyword_sp_block_section
         | keyword_sp_head
@@ -15958,11 +15971,13 @@ keyword_table_alias:
         | keyword_sysvar_type
         | keyword_verb_clause
         | FUNCTION_SYM
+        | EXCEPTION_ORACLE_SYM
         ;
 
 /* Keyword that we allow for identifiers (except SP labels) */
 keyword_ident:
           keyword_data_type
+        | keyword_cast_type
         | keyword_set_special_case
         | keyword_sp_block_section
         | keyword_sp_head
@@ -15972,6 +15987,7 @@ keyword_ident:
         | keyword_verb_clause
         | FUNCTION_SYM
         | WINDOW_SYM
+        | EXCEPTION_ORACLE_SYM
         ;
 
 /*
@@ -15985,10 +16001,12 @@ keyword_label:
         | keyword_sysvar_type
         | FUNCTION_SYM
         | COMPRESSED_SYM
+        | EXCEPTION_ORACLE_SYM
         ;
 
 keyword_sysvar_name:
           keyword_data_type
+        | keyword_cast_type
         | keyword_set_special_case
         | keyword_sp_block_section
         | keyword_sp_head
@@ -15997,6 +16015,7 @@ keyword_sysvar_name:
         | keyword_verb_clause
         | FUNCTION_SYM
         | WINDOW_SYM
+        | EXCEPTION_ORACLE_SYM
         ;
 
 keyword_sp_decl:
@@ -16011,6 +16030,7 @@ keyword_sp_decl:
 
 keyword_set_usual_case:
           keyword_data_type
+        | keyword_cast_type
         | keyword_sp_block_section
         | keyword_sp_head
         | keyword_sp_var_and_label
@@ -16019,10 +16039,12 @@ keyword_set_usual_case:
         | keyword_verb_clause
         | FUNCTION_SYM
         | WINDOW_SYM
+        | EXCEPTION_ORACLE_SYM
         ;
 
 keyword_directly_assignable:
           keyword_data_type
+        | keyword_cast_type
         | keyword_set_special_case
         | keyword_sp_var_and_label
         | keyword_sp_var_not_label
@@ -16031,6 +16053,16 @@ keyword_directly_assignable:
         | WINDOW_SYM
         ;
 
+non_reserved_keyword_udt:
+          keyword_sp_var_not_label
+        | keyword_sp_head
+        | keyword_verb_clause
+        | keyword_set_special_case
+        | keyword_sp_block_section
+        | keyword_sysvar_type
+        | keyword_sp_var_and_label
+        ;
+
 /*
   Keywords that we allow in Oracle-style direct assignments:
     xxx := 10;
@@ -16080,7 +16112,6 @@ keyword_sp_var_not_label:
         | RESTORE_SYM
         | SECURITY_SYM
         | SERVER_SYM
-        | SIGNED_SYM
         | SOCKET_SYM
         | SLAVE
         | SLAVES
@@ -16175,7 +16206,6 @@ keyword_set_special_case:
 */
 keyword_sp_block_section:
           BEGIN_ORACLE_SYM
-        | EXCEPTION_ORACLE_SYM
         | END
         ;
 
@@ -16220,6 +16250,11 @@ keyword_data_type:
         ;
 
 
+keyword_cast_type:
+          SIGNED_SYM
+        ;
+
+
 /*
   These keywords are fine for both SP variable names and SP labels.
 */