feat(spanner): support the last_statement flag#5920
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Spanner allows an application to indicate when a statement will be the last statement in a read/write transaction. Spanner can use this flag to optimize the execution of the last statement, as it means that Spanner can safely defer some of the internal verifications until the Commit call for the transaction.
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This pull request adds support for indicating whether a statement or a batch of DML statements is the last one in a read/write transaction, enabling Spanner to optimize execution. It introduces last_statement to Statement and StatementBuilder, and last_statements to BatchDml and BatchDmlBuilder, along with associated unit and integration tests. As there are no review comments, I have no additional feedback to provide.
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #5920 +/- ##
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Coverage 97.89% 97.90%
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Files 234 234
Lines 59904 59977 +73
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+ Hits 58644 58719 +75
+ Misses 1260 1258 -2 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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sakthivelmanii
approved these changes
Jun 22, 2026
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Spanner allows an application to indicate when a statement will be the last statement in a read/write transaction. Spanner can use this flag to optimize the execution of the last statement, as it means that Spanner can safely defer some of the internal verifications until the Commit call for the transaction.