The materialized view has four base tables, one of which is empty, resulting in the failure to rewrite the materialized view.

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create table a; create table b; create table c; create table d;

CREATE MATERIALIZED VIEW view1 DISTRIBUTED BY HASH(`) REFRESH ASYNC EVERY(INTERVAL 1 MINUTE) PROPERTIES ( "replicated_storage" = "true", "replication_num" = "1", "storage_medium" = "HDD" ) as select id from a join b join c join d;

There is data in tables a, b, and d, but no data in table c.

explain select id from a join b join c join d , the materialized view has not been rewritten.

code com/starrocks/sql/optimizer/Optimizer.java:498 //ruleRewriteIterative(tree, rootTaskContext, RuleSetType.PRUNE_EMPTY_OPERATOR) after annotation, it can be routed to the materialized view. why?

StarRocks / starrocks

The materialized view has four base tables, one of which is empty, resulting in the failure to rewrite the materialized view. #48888

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