Module streaming_index_selection_rule

risingwave_frontend::optimizer::rule

Module streaming_index_selection_rule 

Source
Expand description

Streaming index selection rule for backfill.

Unlike the batch IndexSelectionRule, this rule:

  • Only considers covering indexes (no lookup join in streaming backfill)
  • Handles IN predicates by expanding into a LogicalUnion of LogicalScans, each with a branch-local equality predicate for correct post-backfill routing

Structsยง

StreamingIndexSelectionRule