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Docs/manual.texi:
  HANDLER documented
mysql-test/t/handler.test:
  more tests
This commit is contained in:
unknown 2001-04-13 16:18:44 +02:00
commit ce3b58d6c9
9 changed files with 240 additions and 131 deletions
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57
sql/sql_yacc.yy
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@ -535,7 +535,8 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
equal optional_braces opt_key_definition key_usage_list2
opt_mi_check_type opt_to mi_check_types normal_join
table_to_table_list table_to_table opt_table_list opt_as
handler_read_function handler_rkey_mode END_OF_INPUT
handler_rkey_function handler_rkey_mode handler_read_or_scan
END_OF_INPUT
%type <NONE>
'-' '+' '*' '/' '%' '(' ')'
@ -1904,7 +1905,8 @@ order_dir:
limit_clause:
/* empty */
{
Lex->select_limit= current_thd->default_select_limit;
Lex->select_limit= (Lex->sql_command == SQLCOM_HA_READ) ?
1 : current_thd->default_select_limit;
Lex->offset_limit= 0L;
}
| LIMIT ULONG_NUM
@ -2844,7 +2846,7 @@ unlock:
/*
** Table: direct access to ISAM functions
** Handler: direct access to ISAM functions
*/
handler:
@ -2860,45 +2862,40 @@ handler:
if (!add_table_to_list($2,0,0))
YYABORT;
}
| HANDLER_SYM table_ident READ_SYM ident handler_read_function limit_clause
| HANDLER_SYM table_ident READ_SYM handler_read_or_scan
{
Lex->sql_command = SQLCOM_HA_READ;
Lex->backup_dir= $4.str;
if (!add_table_to_list($2,0,0))
YYABORT;
}
}
where_clause limit_clause { }
handler_read_function:
FIRST_SYM
{
Lex->ha_read_mode = RFIRST;
}
| NEXT_SYM
{
Lex->ha_read_mode = RNEXT;
}
| PREV_SYM
{
Lex->ha_read_mode = RPREV;
}
| LAST_SYM
{
Lex->ha_read_mode = RLAST;
}
handler_read_or_scan:
handler_scan_function { Lex->backup_dir= 0; }
| ident handler_rkey_function { Lex->backup_dir= $1.str; }
handler_scan_function:
FIRST_SYM { Lex->ha_read_mode = RFIRST; }
| NEXT_SYM { Lex->ha_read_mode = RNEXT; }
handler_rkey_function:
FIRST_SYM { Lex->ha_read_mode = RFIRST; }
| NEXT_SYM { Lex->ha_read_mode = RNEXT; }
| PREV_SYM { Lex->ha_read_mode = RPREV; }
| LAST_SYM { Lex->ha_read_mode = RLAST; }
| handler_rkey_mode
{
Lex->ha_read_mode = RKEY;
if (!(Lex->insert_list = new List_item))
YYABORT;
}
'(' values ')' { }
} '(' values ')' { }
handler_rkey_mode:
EQ { Lex->ha_rkey_mode=HA_READ_KEY_EXACT; }
| GE { Lex->ha_rkey_mode=HA_READ_KEY_OR_NEXT; }
| LE { Lex->ha_rkey_mode=HA_READ_KEY_OR_PREV; }
| GT_SYM {Lex->ha_rkey_mode=HA_READ_AFTER_KEY; }
| LT { Lex->ha_rkey_mode=HA_READ_BEFORE_KEY; }
EQ { Lex->ha_rkey_mode=HA_READ_KEY_EXACT; }
| GE { Lex->ha_rkey_mode=HA_READ_KEY_OR_NEXT; }
| LE { Lex->ha_rkey_mode=HA_READ_KEY_OR_PREV; }
| GT_SYM { Lex->ha_rkey_mode=HA_READ_AFTER_KEY; }
| LT { Lex->ha_rkey_mode=HA_READ_BEFORE_KEY; }
/* GRANT / REVOKE */