Function _if

python/pathway/internals/sql/processing.py:60–63

(
    node: sql_expr.If, context: ContextType
)

@register(nodetype=sql_expr.If)
def _if(
    node: sql_expr.If, context: ContextType
) -> tuple[expr.ColumnExpression, expr.ColumnExpression]:
    return _run(node.this, context), _run(node.args.pop("true"), context)


@register(nodetype=sql_expr.Case)