Module agg_types

Macros to generate match arms for AggType. IMPORTANT: These macros must be carefully maintained especially when adding new AggType/PbAggKind variants.

Macros

materialized_input_state

AggTypes that are implemented with a materialized input state.

must_have_order_by

AggTypes that must be called with ORDER BY clause. These are slightly different from variants not in result_unaffected_by_order_by, in that variants returned by this macro should be banned while the others should just be warned.

ordered_set

Ordered-set aggregate functions.

result_unaffected_by_distinct

AggTypes of which the aggregate results are not affected by the user given DISTINCT keyword.

result_unaffected_by_order_by

AggTypes of which the aggregate results are not affected by the user given ORDER BY clause.

rewritten

AggTypes that should’ve been rewritten to other kinds. These kinds should not appear when generating physical plan nodes.

simply_cannot_two_phase

AggTypes that are simply cannot 2-phased.

single_value_state

AggTypes that are implemented with a single value state (so-called stateless).

single_value_state_iff_in_append_only

AggTypes that are implemented with a single value state (so-called stateless) iff the input is append-only.

unimplemented_in_stream

AggTypes that are currently not supported in streaming mode.