xiedeyantu commented on PR #5151:
URL: https://github.com/apache/calcite/pull/5151#issuecomment-5205553243
I checked the SQL standard, and there are no constraints regarding how maps
should be compared; I believe any implementation approach we choose would be
justifiable. However, I have observed that both DuckDB and ClickHouse return
`false` when executing `select map('a', 1, 'b', 2) = map('b', 2, 'a', 1)`. I am
unsure what the best approach for Calcite would be.
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