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Added the syntax for percentile functions and median function to the sql_yacc_ora.yy file

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Varun Gupta 2017-10-28 22:28:31 +03:00
parent ab5503c8c5
commit a607e4e7aa
1 changed files with 29 additions and 7 deletions
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36
sql/sql_yacc_ora.yy
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@ -645,6 +645,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
%token MAX_STATEMENT_TIME_SYM %token MAX_STATEMENT_TIME_SYM
%token MAX_USER_CONNECTIONS_SYM %token MAX_USER_CONNECTIONS_SYM
%token MAXVALUE_SYM /* SQL-2003-N */ %token MAXVALUE_SYM /* SQL-2003-N */
%token MEDIAN_SYM
%token MEDIUMBLOB %token MEDIUMBLOB
%token MEDIUMINT %token MEDIUMINT
%token MEDIUMTEXT %token MEDIUMTEXT
@ -1151,6 +1152,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
window_func window_func
simple_window_func simple_window_func
inverse_distribution_function inverse_distribution_function
percentile_function
inverse_distribution_function_def inverse_distribution_function_def
explicit_cursor_attr explicit_cursor_attr
function_call_keyword function_call_keyword
@ -10723,13 +10725,9 @@ simple_window_func:
MYSQL_YYABORT; MYSQL_YYABORT;
} }
; ;
inverse_distribution_function: inverse_distribution_function:
inverse_distribution_function_def WITHIN GROUP_SYM percentile_function OVER_SYM
'(' '(' opt_window_partition_clause ')'
{ Select->prepare_add_window_spec(thd); }
order_by_single_element_list ')' OVER_SYM
'(' opt_window_ref opt_window_partition_clause ')'
{ {
LEX *lex= Lex; LEX *lex= Lex;
if (Select->add_window_spec(thd, lex->win_ref, if (Select->add_window_spec(thd, lex->win_ref,
@ -10746,6 +10744,29 @@ inverse_distribution_function:
} }
; ;
percentile_function:
inverse_distribution_function_def WITHIN GROUP_SYM '('
{ Select->prepare_add_window_spec(thd); }
order_by_single_element_list ')'
{
$$= $1;
}
| MEDIAN_SYM '(' expr ')'
{
Item *args= new (thd->mem_root) Item_decimal(thd, "0.5", 3,
thd->charset());
if (($$ == NULL) || (thd->is_error()))
{
MYSQL_YYABORT;
}
if (add_order_to_list(thd, $3,FALSE)) MYSQL_YYABORT;
$$= new (thd->mem_root) Item_sum_percentile_cont(thd, args);
if ($$ == NULL)
MYSQL_YYABORT;
}
;
inverse_distribution_function_def: inverse_distribution_function_def:
PERCENTILE_CONT_SYM '(' expr ')' PERCENTILE_CONT_SYM '(' expr ')'
{ {
@ -10762,7 +10783,8 @@ inverse_distribution_function_def:
; ;
order_by_single_element_list: order_by_single_element_list:
ORDER_SYM BY order_list ORDER_SYM BY order_ident order_dir
{ if (add_order_to_list(thd, $3,(bool) $4)) MYSQL_YYABORT; }
; ;
window_name: window_name: