15 let def_param_name name (id,t) =
18 | Next | Numbered _ -> name
26 %token <string> IDENT TEXT BLOB
27 %token <Stmt.param_id> PARAM
28 %token <Sql.Type.t option> FUNCTION
29 %token LPAREN RPAREN COMMA EOF DOT NULL
31 %token SELECT INSERT OR INTO CREATE UPDATE TABLE VALUES WHERE ASTERISK DISTINCT ALL
32 LIMIT ORDER BY DESC ASC EQUAL DELETE FROM DEFAULT OFFSET SET JOIN LIKE_OP
33 EXCL TILDE NOT TEST_NULL BETWEEN AND ESCAPE USING COMPOUND_OP AS
34 CONCAT_OP JOIN_TYPE1 JOIN_TYPE2 NATURAL REPLACE
35 %token UNIQUE PRIMARY KEY AUTOINCREMENT ON CONFLICT
36 %token NUM_BINARY_OP PLUS MINUS
37 %token T_INTEGER T_BLOB T_TEXT
39 %type <Syntax.expr> expr
41 %start <RA.Scheme.t * Stmt.params * Stmt.kind> input
45 input: statement EOF { $1 } ;
47 statement: CREATE TABLE name=IDENT LPAREN scheme=column_defs RPAREN
48 { let () = Tables.add (name,scheme) in ([],[],Create name) }
49 | CREATE TABLE name=IDENT AS select=select_stmt
56 { let (s,p) = $1 in s,p,Select }
57 | insert_cmd table=IDENT cols=columns_list? VALUES
59 let s = Tables.get_scheme table in
60 let s = match cols with
61 | Some cols -> RA.Scheme.project cols s
64 let p = Syntax.scheme_as_params s in
67 | update_cmd table=IDENT SET assignments=separated_nonempty_list(COMMA,set_column) w=where?
69 let t = Tables.get table in
70 let p2 = get_params_opt [t] w in
71 let (cols,exprs) = List.split assignments in
72 let _ = RA.Scheme.project cols (snd t) in (* validates columns *)
73 let p1 = Syntax.get_params_l [t] exprs in
74 [], p1 @ p2, Update table
76 | DELETE FROM table=IDENT w=where?
78 let p = get_params_opt [Tables.get table] w in
82 columns_list: LPAREN cols=separated_nonempty_list(COMMA,IDENT) RPAREN { cols }
84 select_stmt: select_core list(preceded(COMPOUND_OP,select_core)) o=loption(order) p4=loption(limit)
85 { let (s1,p1,tbls) = $1 in
86 let (s2,p2) = List.split (List.map (fun (s,p,_) -> s,p) $2) in (* ignore tables in compound statements - they cannot be used in ORDER BY *)
87 let p3 = Syntax.get_params_l tbls o in
88 List.fold_left RA.Scheme.compound s1 s2,(p1@(List.flatten p2)@p3@p4) }
90 select_core: SELECT select_type? r=separated_nonempty_list(COMMA,column1)
95 let p1 = Syntax.params_of_columns tbls r in
96 let p3 = Syntax.get_params_opt tbls w in
97 (Syntax.get_scheme r tbls, p1 @ p2 @ p3, tbls)
100 table_list: source join_source*
102 let (s,p) = List.split $2 in
103 (fst $1::s, List.flatten (snd $1::p))
105 join_source: join_op s=source p=loption(join_args)
107 (* FIXME more tables in scope *)
108 (fst s,snd s @ Syntax.get_params_l [fst s] p)
110 source: IDENT { Tables.get $1,[] }
111 | LPAREN s=select_core RPAREN { let (s,p,_) = s in ("",s),p }
112 join_op: COMMA | NATURAL? JOIN_TYPE1? JOIN_TYPE2? JOIN { } ;
113 join_args: ON e=expr { [e] }
114 | USING LPAREN l=separated_nonempty_list(COMMA,IDENT) RPAREN { List.map (fun name -> `Column (name,None)) l }
116 insert_cmd: INSERT OR CONFLICT_ALGO INTO | INSERT INTO | REPLACE INTO { }
118 update_cmd: UPDATE {}
119 | UPDATE OR CONFLICT_ALGO {} ;
121 select_type: DISTINCT | ALL { }
123 int_or_param: INTEGER { [] }
124 | PARAM { [($1,Some Sql.Type.Int)] }
126 limit: LIMIT p=int_or_param { p }
127 | LIMIT p1=int_or_param COMMA p2=int_or_param { p1 @ p2 }
128 | LIMIT p1=int_or_param OFFSET p2=int_or_param { p1 @ p2 }
130 order: ORDER BY l=separated_nonempty_list(COMMA,terminated(expr,order_type?)) { l }
131 order_type: DESC | ASC { }
133 where: WHERE e=expr { e }
136 | IDENT DOT ASTERISK { Syntax.AllOf $1 }
137 | ASTERISK { Syntax.All }
138 | expr maybe_as { let e = $1 in Syntax.Expr (e,$2) }
140 maybe_as: option(AS) name=IDENT { Some name }
143 column_defs: separated_nonempty_list(COMMA,column_def1) { $1 }
144 column_def1: IDENT sql_type column_def_extra* { RA.attr $1 $2 } ;
145 column_def_extra: PRIMARY KEY { Some Constraint.PrimaryKey }
146 | NOT NULL { Some Constraint.NotNull }
147 | UNIQUE { Some Constraint.Unique }
148 | AUTOINCREMENT { Some Constraint.Autoincrement }
149 | ON CONFLICT CONFLICT_ALGO { None } ;
150 | DEFAULT INTEGER { None }
152 set_column: name=IDENT EQUAL e=expr { name,e }
154 (* expr: expr1 { $1 >> Syntax.expr_to_string >> prerr_endline; $1 } *)
157 expr numeric_bin_op expr { `Func ((Some Int),[$1;$3]) }
158 | expr CONCAT_OP expr { `Func ((Some Text),[$1;$3]) }
159 (* | expr NOT? LIKE_OP expr (*escape?*) { Sub [$1;$4] } *)
160 (* | unary_op expr { $2 } *)
161 | LPAREN expr RPAREN { $2 }
162 | IDENT { `Column ($1,None) }
163 | t=IDENT DOT c=IDENT
164 | IDENT DOT t=IDENT DOT c=IDENT { `Column (c,Some t) }
165 | INTEGER { `Value Int }
166 (* | FLOAT { `Value Float } *)
167 | TEXT { `Value Text }
168 | BLOB { `Value Blob }
169 | PARAM { `Param ($1,None) }
170 | FUNCTION LPAREN func_params RPAREN { `Func ($1,$3) }
171 | expr TEST_NULL { $1 }
172 | expr BETWEEN expr AND expr { `Func ((Some Int),[$1;$3;$5]) }
174 expr_list: separated_nonempty_list(COMMA,expr) { $1 }
175 func_params: expr_list { $1 }
177 escape: ESCAPE expr { $2 }
178 numeric_bin_op: EQUAL | PLUS | MINUS | ASTERISK | AND | OR | NUM_BINARY_OP { }
186 sql_type: T_INTEGER { Type.Int }
187 | T_BLOB { Type.Blob }
188 | T_TEXT { Type.Text } ;