Semantic Layer needs proper language and tooling support which Malloy provides.
I curate some more on here in case of interest: https://www.ssp.sh/brain/data-modeling-languages.
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Shameless plug for the list, though - I work on https://github.com/trilogy-data/pytrilogy - semantic layer directly embedded in otherwise (mostly) SQL syntax.
I'll do an equivalent example on the taxi dataset when I have some time.
Semantic Layer needs proper language and tooling support which Malloy provides.