式サポート

[lemonadern]

ここで言う式とは、PostgreSQL の文法で 式として扱われているもののこと

c_expr

• columnref
  • IDENT （シンプルな列名） b6e3f89
  • IDENT indirection
    • フィールドアクセス （e.g. a.b.c, a.*）
    • 配列アクセス (e.g. a[1], a[1:4])
      • memo: tree-sitter-sql は非対応
• AexprConst f783604, 4627c0b
  • Iconst (ICONST)
  • FCONST
  • Sconst (SCONST)
  • BCONST
  • XCONST
  • func_name Sconst
    • 型付きリテラル （e.g. complex_type '(1,2)）
    • カスタム型はこちら、 date, time, interval 等の PostgreSQL組み込み型は ConstTypeName, ConstInterval で処理される
    • memo: 型付きリテラル系の構文はすべて tree-sitter-sql で非対応
  • func_name '(' func_arg_list opt_sort_clause ')' Sconst
    • type modifier 付きの型付きリテラル
    • varchar(50) 'hello'
  • ConstTypename Sconst
    • 組み込み型に対する型キャスト (timestamp, date, time)
    • timestamp 2024-03-21 12:34:56
  • ConstInterval Sconst opt_interval
    • interval
    • interval '3 days' (opt_interval なし)
    • interval '3' day (opt_interval あり)
  • ConstInterval '(' Iconst ')' Sconst
    • 精度指定つき interval
    • interval(3) '1.123 seconds'
  • TRUE_P
  • FALSE_P
  • NULL_P
• PARAM opt_indirection
• '(' a_expr ')' opt_indirection
• case_expr
• func_expr
  • 関数呼び出しの構文
  • window function や filter を含む
  • func_application
• select_with_parens
• select_with_parens indirection
• EXISTS select_with_parens
• ARRAY select_with_parens
• ARRAY array_expr
• explicit_row
• implicit_row
• GROUPING '(' expr_list ')'

b_expr

• c_expr
• b_expr TYPECAST Typename
• '+' b_expr
• '-' b_expr
• b_expr '+' b_expr
• b_expr '-' b_expr
• b_expr '*' b_expr
• b_expr '/' b_expr
• b_expr '%' b_expr
• b_expr '^' b_expr
• b_expr '<' b_expr
• b_expr '>' b_expr
• b_expr '=' b_expr
• b_expr LESS_EQUALS b_expr
• b_expr GREATER_EQUALS b_expr
• b_expr NOT_EQUALS b_expr
• b_expr qual_Op b_expr
• qual_Op b_expr
• b_expr IS DISTINCT FROM b_expr
• b_expr IS NOT DISTINCT FROM b_expr
• b_expr IS DOCUMENT_P
• b_expr IS NOT DOCUMENT_P

a_expr

• c_expr
• a_expr TYPECAST Typename
• a_expr COLLATE any_name
• a_expr AT TIME ZONE a_expr
• a_expr AT LOCAL
• '+' a_expr
• '-' a_expr
• a_expr '+' a_expr
• a_expr '-' a_expr
• a_expr '*' a_expr
• a_expr '/' a_expr
• a_expr '%' a_expr
• a_expr '^' a_expr
• a_expr '<' a_expr
• a_expr '>' a_expr
• a_expr '=' a_expr
• a_expr LESS_EQUALS a_expr
• a_expr GREATER_EQUALS a_expr
• a_expr NOT_EQUALS a_expr
• a_expr qual_Op a_expr
• qual_Op a_expr
• a_expr AND a_expr
• a_expr OR a_expr
• NOT a_expr
• NOT_LA a_expr
• a_expr LIKE a_expr
• a_expr LIKE a_expr ESCAPE a_expr
• a_expr NOT_LA LIKE a_expr
• a_expr NOT_LA LIKE a_expr ESCAPE a_expr
• a_expr ILIKE a_expr
• a_expr ILIKE a_expr ESCAPE a_expr
• a_expr NOT_LA ILIKE a_expr
• a_expr NOT_LA ILIKE a_expr ESCAPE a_expr
• a_expr SIMILAR TO a_expr
• a_expr SIMILAR TO a_expr ESCAPE a_expr
• a_expr NOT_LA SIMILAR TO a_expr
• a_expr NOT_LA SIMILAR TO a_expr ESCAPE a_expr
• a_expr IS NULL_P
• a_expr ISNULL
• a_expr IS NOT NULL_P
• a_expr NOTNULL
• row OVERLAPS row
• a_expr IS TRUE_P
• a_expr IS NOT TRUE_P
• a_expr IS FALSE_P
• a_expr IS NOT FALSE_P
• a_expr IS UNKNOWN
• a_expr IS NOT UNKNOWN
• a_expr IS DISTINCT FROM a_expr
• a_expr IS NOT DISTINCT FROM a_expr
• a_expr BETWEEN opt_asymmetric b_expr AND a_expr
• a_expr NOT_LA BETWEEN opt_asymmetric b_expr AND a_expr
• a_expr BETWEEN SYMMETRIC b_expr AND a_expr
• a_expr NOT_LA BETWEEN SYMMETRIC b_expr AND a_expr
• a_expr IN_P in_expr
• a_expr NOT_LA IN_P in_expr
• a_expr subquery_Op sub_type select_with_parens
• a_expr subquery_Op sub_type '(' a_expr ')'
• UNIQUE opt_unique_null_treatment select_with_parens
• a_expr IS DOCUMENT_P
• a_expr IS NOT DOCUMENT_P
• a_expr IS NORMALIZED
• a_expr IS unicode_normal_form NORMALIZED
• a_expr IS NOT NORMALIZED
• a_expr IS NOT unicode_normal_form NORMALIZED
• a_expr IS json_predicate_type_constraint json_key_uniqueness_constraint_opt
• a_expr IS NOT json_predicate_type_constraint json_key_uniqueness_constraint_opt
• DEFAULT