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Eva Feng
LDI
Commits
ab6a1af8
Commit
ab6a1af8
authored
5 years ago
by
expan
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Change naming for table assignments and select
parent
fe17b66a
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2 changed files
SQLPGrammar.y
+4
-4
4 additions, 4 deletions
SQLPGrammar.y
util.c
+10
-15
10 additions, 15 deletions
util.c
with
14 additions
and
19 deletions
SQLPGrammar.y
+
4
−
4
View file @
ab6a1af8
...
...
@@ -62,11 +62,11 @@ Body
TablePath
: TableIdentifier VarIdentifier
{ printf("last table path\n");
$$ = create_a
tom
_operator($1, $2);
$$ = create_a
ssign
_operator($1, $2);
}
| TableIdentifier VarIdentifier ',' TablePath
{ printf("table path2\n");
$$ = create_cross_operator(create_a
tom
_operator($1, $2), $4);
$$ = create_cross_operator(create_a
ssign
_operator($1, $2), $4);
}
;
...
...
@@ -89,11 +89,11 @@ Select_List
}
| Col
{ printf("select list attr path\n");
$$ = create_
assign
_operator($1, NULL);
$$ = create_
rename
_operator($1, NULL);
}
| Col ',' Select_List
{ printf("Select list\n");
$$ = create_
assign
_operator($1, $2);
$$ = create_
rename
_operator($1, $2);
}
;
...
...
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util.c
+
10
−
15
View file @
ab6a1af8
...
...
@@ -122,29 +122,24 @@ cons_cell* create_cross_operator(cons_cell* ra1, cons_cell* ra2) {
// For when you want to assign column names to another name
// THIS DOESN"T WORK FOR JASON"S COMPILER SO REVERTING BACK BUT LEFT HERE IN CASE WE NEED IT LATER XD
//cons_cell* create_rename_operator(cons_cell* column, cons_cell* var, cons_cell* next) {
// cons_cell* new_name_cons = create_cons_cell(var, next);
// cons_cell* original_cons = create_cons_cell(column, new_name_cons);
// char operator[7] = "RENAME\0";
// cons_cell* operator_cons = create_cons_cell_w_atom(operator, original_cons);
// return operator_cons;
//}
cons_cell
*
create_rename_operator
(
cons_cell
*
col
,
cons_cell
*
next
)
{
cons_cell
*
original_cons
=
create_cons_cell
(
col
,
next
);
char
operator
[
7
]
=
"RENAME
\0
"
;
cons_cell
*
operator_cons
=
create_cons_cell_w_atom
(
operator
,
original_cons
);
return
operator_cons
;
}
// For when you want to assign a var to a table
cons_cell
*
create_assign_operator
(
cons_cell
*
spcol
,
cons_cell
*
next
)
{
cons_cell
*
create_assign_operator
(
cons_cell
*
table
,
cons_cell
*
var
)
{
// cdr to get to cons atom, car to get atom itself
// cons_cell* new_name_cons = create_cons_cell(var, NULL);
// cons_cell* original_cons = create_cons_cell(table, new_name_cons);
cons_cell
*
sp_col_cons
=
create_cons_cell
(
spcol
,
next
);
cons_cell
*
var_cons
=
create_cons_cell
(
var
,
NULL
);
cons_cell
*
assign_cons
=
create_cons_cell
(
table
,
var
);
char
operator
[
3
]
=
"AS
\0
"
;
cons_cell
*
operator_cons
=
create_cons_cell_w_atom
(
operator
,
sp_col
_cons
);
cons_cell
*
operator_cons
=
create_cons_cell_w_atom
(
operator
,
assign
_cons
);
return
operator_cons
;
}
cons_cell
*
create_proj_operator
(
cons_cell
*
assign
,
cons_cell
*
ra
)
{
if
(
ra
==
NULL
)
{
printf
(
"WTF"
);
}
cons_cell
*
ra_cons
=
create_cons_cell
(
ra
,
NULL
);
cons_cell
*
assign_cons
=
create_cons_cell
(
assign
,
ra_cons
);
char
operator
[
5
]
=
"PROJ
\0
"
;
...
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