Concat with only one expression

oap-project / gazelle_plugin

Native SQL Engine plugin for Spark SQL with vectorized SIMD optimizations.

Apache License 2.0

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Closed jackylee-ch closed 1 year ago

jackylee-ch commented 1 year ago

Describe the bug Concat with only one expression is not supported yet.

To Reproduce

create table test(expr string) using parquet;
insert into test values("a");
select concat(expr) from test;

Expected behavior Return a.