发表于

mysql parser

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%type <lexer.charset>
        opt_collate
       	charset_name
        old_or_new_charset_name
        old_or_new_charset_name_or_default
        collation_name
        opt_load_data_charset
        UNDERSCORE_CHARSET
        ascii unicode
        default_charset 		   default_collation
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create:
          CREATE DATABASE opt_if_not_exists ident
          {
            Lex->create_info= YYTHD->alloc_typed<HA_CREATE_INFO>();
            if (Lex->create_info == NULL)
              MYSQL_YYABORT; // OOM
            Lex->create_info->default_table_charset= NULL;
            Lex->create_info->used_fields= 0;
          }
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create_database_option:
          default_collation
          {
            if (set_default_collation(Lex->create_info, $Extra close brace or missing open brace1))
              MYSQL_YYABORT;
          }
        | default_charset
          {
            if (set_default_charset(Lex->create_info, $1))
              MYSQL_YYABORT;
          }
        | default_encryption
          {
            // Validate if we have either 'y|Y' or 'n|N'
            if (my_strcasecmp(system_charset_info, $Misplaced &1.str, "Y") != 0 &&
                my_strcasecmp(system_charset_info, $1.str, "N") != 0) {
              my_error(ER_WRONG_VALUE, MYF(0), "argument (should be Y or N)", $1.str);
              MYSQL_YYABORT;
            }

​        Lex->create_info->encrypt_type= $1;
​        Lex->create_info->used_fields |= HA_CREATE_USED_DEFAULT_ENCRYPTION;
​      }
​    ;

​

​ 

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create_table_option:
  | default_charset
         {
           $$= NEW_PTN PT_create_table_default_charset($1);
         }
       | default_collation
         {
           $$= NEW_PTN PT_create_table_default_collation($1);
         }
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default_charset:
          opt_default character_set opt_equal charset_name { $$ = $4; }
        ;

default_collation:
          opt_default COLLATE_SYM opt_equal collation_name { $$ = $4;}
        ;

default_encryption:
          opt_default ENCRYPTION_SYM opt_equal TEXT_STRING_sys { $$ = $4;}
        ;