Function getExprType

AST Module

This module provides types, type guards, helpers, and visitor utilities for working with SQL AST nodes.

Query builders are in src/builders.ts (WASM-backed).

getExprType<E extends ast.Expression>(expr: E): ExpressionTypeOf<E>
Get the type tag (variant key) of an Expression at runtime.
Type Parameters
- E extends ast.Expression
Parameters
- expr: E
Returns ExpressionTypeOf<E>
Example
```
const result = parse("SELECT 1");
if (result.success) {
  getExprType(result.ast[0]); // => "select"
}
```
- Defined in ast/helpers.ts:115