BREAKING! Change SymbolOperator type to plain string

nene · Dec 21, 2023 · 0579156 · 0579156
1 parent ca9faaa
commit 0579156
Showing 1 changed file with 30 additions and 33 deletions.
diff --git a/src/cst/Expr.ts b/src/cst/Expr.ts
@@ -85,39 +85,36 @@ export interface BinaryExpr<
  right: TRight;
 }
 
-type SymbolOperator =
- // standard arithmetics
- | "+"
- | "-"
- | "*"
- | "/"
- | "%" // SQLite, MySQL, PostgreSQL
- // comparison
- | "="
- | "==" // SQLite
- | "<"
- | ">"
- | ">="
- | "<="
- | "<>"
- | "!="
- | "<=>" // MySQL
- // string concat
- | "||" // OR in MySQL
- | "" // MySQL concatenation of adjecent string literals
- // Logic
- | "&&" // MySQL
- // JSON
- | "->" // SQLite, MySQL
- | "->>" // SQLite, MySQL
- // bitwise
- | "&"
- | "|"
- | ">>"
- | "<<"
- | "^" // BigQuery, MySQL, PostgreSQL (exp)
- // Assignment
- | ":="; // MySQL
+/**
+ * We can't enumerate all operators because PostgreSQL allows custom operators.
+ * So this type is just alias for string.
+ *
+ * However, for reference, here's a list of the usual operators and to which dialects they apply:
+ *
+ * arithmetics:
+ * + - * /
+ * % (SQLite, MySQL, PostgreSQL)
+ * ^ (PostgreSQL)
+ * comparison:
+ * = < > >= <= <> !=
+ * == (SQLite)
+ * <=> (MySQL)
+ * string concatenation:
+ * || (except in MySQL)
+ * "" (empty string - in MySQL adjecent strings get concatenated)
+ * logic:
+ * && (MySQL AND)
+ * || (MySQL)
+ * JSON:
+ * -> (SQLite, MySQL)
+ * ->> (SQLite, MySQL)
+ * bitwise:
+ * & | >> <<
+ * ^ (BigQuery and MySQL)
+ * assignment:
+ * := (MySQL)
+ */
+type SymbolOperator = string;
 
 type KeywordOperator =
  // arithmetic