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Connector doesn't recognize hash functions for Distributed Tables while insertInto #385

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FreakingMind opened this issue Feb 13, 2025 · 0 comments

FreakingMind commented Feb 13, 2025

When I create a table with rand() distribution key everything works fine:

create table test.test_local
(
    `installment_id` String,
    `payment_num`    Float64,
    `payment_date`   Date
)
    engine = MergeTree
        order by installment_id;

create table test.test_distributed on cluster 'all_sharded_cluster' as test.test_local
engine = Distributed('all_sharded_cluster', test, test_local, rand());

But when I create it with toUInt32OrDefault(xxHash32() I get error:

create table test.test_distributed_2 on cluster 'all_sharded_cluster' as test.test_local
engine = Distributed('all_sharded_cluster', test, test_local, toUInt32OrDefault(xxHash32(installment_id));

final_table.write.insertInto("clickhouse.test.test_distributed_2")

Error

AnalysisException: [-1] Unsupported ClickHouse expression: FuncExpr[toUInt32OrDefault(xxHash32(installment_id))]

Can u provide any help on solving this issue?

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