Spark 4.1: Align handling of branches in reads and writes#15288
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aokolnychyi merged 4 commits intoapache:mainfrom Feb 17, 2026
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Spark 4.1: Align handling of branches in reads and writes#15288aokolnychyi merged 4 commits intoapache:mainfrom
aokolnychyi merged 4 commits intoapache:mainfrom
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aokolnychyi
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Feb 10, 2026
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| public String branch() { | ||
| String optionBranch = confParser.stringConf().option(SparkReadOptions.BRANCH).parseOptional(); |
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Moved into a utility call. I will remove this method in subsequent PRs and use the utility directly.
aokolnychyi
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Feb 10, 2026
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| public String branch() { | ||
| if (wapEnabled()) { |
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Moved into a utility call. I will remove this method in subsequent PRs.
We will have to resolve branches earlier.
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This PR includes a behavior change from #15240 to simplify the main PR and review. cc @amogh-jahagirdar @nastra @szehon-ho @huaxingao @singhpk234 |
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@amogh-jahagirdar @nastra @szehon-ho @huaxingao @singhpk234, could you check this one? It is the last one before I can rebase the main PR with versioned Spark tables support. |
amogh-jahagirdar
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Feb 17, 2026
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Thanks @aokolnychyi , this looks right to me!
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Thanks, @amogh-jahagirdar! |
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After apache#15288, the identifier and option branches take priority over the session WAP branch. The docs previously stated that WAP branch and branch identifier cannot both be specified, which is no longer accurate. Also updated the note about branch creation during writes.
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After apache#15288, the identifier and option branches take priority over the session WAP branch. The docs previously stated that WAP branch and branch identifier cannot both be specified, which is no longer accurate. Also updated the note about branch creation during writes.
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This PR aligns handling of branches in reads and writes.
After this PR, we will allow writes that explicitly provide the branch to succeed even if WAP is configured. Just like we allow this for reads. If the user configures a branch via identifier or in option, it must override everything else. The only remaining difference is that writes are allowed to create new branches.