fix: recreate materialized views on query schema drift - #1621
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When CREATE embeds a user-specified column list, Databricks rejects REFRESH if the query-inferred schema changes (e.g. upstream select * gains a column). Detect drift and replace instead of refresh.
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Summary
select *gains a column) and recreate via replace instead of issuingREFRESH, which Databricks rejects with an incompatible user-specified schema error.Resolves #1359
Test plan
tests/unit/test_column_schemas_differ.pytests/functional/adapter/materialized_view_tests/test_mv_schema_evolution.pytest_mv_alter_no_rebuildstill passes