branch-4.1: [fix](be) Fix ANN query vector extraction to handle all constant expression types #62637#62957
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yiguolei merged 2 commits intoapache:branch-4.1from May 1, 2026
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…ession types (apache#62637) ## Proposed changes Fix `extract_query_vector` in `ann_topn_runtime.cpp` to handle all constant expression types instead of only `VArrayLiteral` and `VCastExpr`. ### What problem does this PR solve? Issue Number: close #xxx Problem Summary: The `extract_query_vector` function previously checked whether the query vector argument was specifically a `VArrayLiteral` or `VCastExpr` via `dynamic_pointer_cast`. When FE produced other constant expression forms (e.g., after expression rewrites), ANN index queries would fail with `InvalidArgument: Constant must be ArrayLiteral or CAST to array`. The fix removes the rigid type check and instead: 1. Calls `get_const_col()` to materialize the constant expression 2. Unwraps `ColumnConst` via `check_and_get_column<ColumnConst>` to get the underlying data column 3. Validates the resulting column shape (Nullable → Array → Float32) This approach works for any constant expression that materializes to an array column, regardless of the expression node type. ### Release note Fix ANN vector index query failure when the query vector expression is not a direct array literal or CAST expression. ### Check List (For Author) - Test: Regression test - Behavior changed: No - Does this need documentation: No
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cherry pick from #62637