[SPARK-43752][SQL] Support column DEFAULT values in V2 write commands#55127
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LuciferYang wants to merge 1 commit intoapache:masterfrom
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[SPARK-43752][SQL] Support column DEFAULT values in V2 write commands#55127LuciferYang wants to merge 1 commit intoapache:masterfrom
LuciferYang wants to merge 1 commit intoapache:masterfrom
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What changes were proposed in this pull request?
Resolve column
DEFAULTreferences in V2 write commands (AppendData,OverwriteByExpression,OverwritePartitionsDynamic).Previously,
ResolveColumnDefaultInCommandInputQueryonly handledInsertIntoStatement(V1 path) andSetVariable. V2 write commands withDEFAULTwould fail with unresolved attribute errors.Changes:
Analyzer.ResolveReferences: dispatchV2WriteCommandtoresolveColumnDefaultInCommandInputQuerywhen the query contains unresolved attributesResolveColumnDefaultInCommandInputQuery: addV2WriteCommandcase that resolvesDEFAULTby matching query columns to the table schema by positionTODO (SPARK-43752)commentWhy are the changes needed?
INSERT INTO v2_table VALUES (1, DEFAULT)fails for V2 data sources even when the table has column default values defined. This blocks V2 adoption for catalogs that supportSUPPORT_COLUMN_DEFAULT_VALUE.Does this PR introduce any user-facing change?
Yes.
DEFAULTkeyword now works inINSERT INTO/INSERT OVERWRITEfor V2 tables.How was this patch tested?
ResolveDefaultColumnsSuiteWas this patch authored or co-authored using generative AI tooling?
Generated-by: Claude Code 4.6