Backport: Fix incorrect ... LIKE '%' simplification with NULLs (#13259)
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sadboy
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Nov 6, 2024
…che#13259) * Fix incorrect `... LIKE '%'` simplification `expr LIKE '%'` was previously simplified to `true`, but the expression returns `NULL` when `expr` is null. The conversion was conditional on `!is_null(expr)` which means "is not always true, i.e. is not a null literal". This commit adds correct simplification logic. It additionally expands the rule coverage to include string view (Utf8View) and large string (LargeUtf8). This allows writing shared test cases even despite `utf8_view LIKE '%'` returning incorrect results at execution time (tracked by apache#12637). I.e. the simplification masks the bug for cases where pattern is statically known. * fixup! Fix incorrect `... LIKE '%'` simplification * fix tests (re review comments)
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Backport of apache#13259