feat(bigquery): expose StatementType and query execution stats on TableResult

[keshavdandeva]

b/549680449

This PR exposes StatementType and jobless query execution metrics on TableResult by plumbing them from QueryResponse and JobStatistics.QueryStatistics.

This enables downstream consumers (such as the BigQuery JDBC driver) to inspect query statement types and execution statistics directly from TableResult without needing to issue secondary jobs or dry-run queries.

Changes

• Dependency Update: Bumped google-api-services-bigquery to v2-rev20260731-2.0.0 in google-cloud-jar-parent/pom.xml and java-bigquery/pom.xml.
• TableResult: Added getters, builder setters, pagination propagation (getNextPage()), toString(), hashCode(), and equals() for:
  • getStatementType() (StatementType)
  • getTotalBytesBilled() (Long)
  • getTotalBytesProcessed() (Long)
  • getTotalSlotMs() (Long)
  • getNumDmlAffectedRows() (Long)
• BigQueryImpl: Plumbed these fields from QueryResponse when building TableResult in queryRpc().
• Job: Plumbed StatementType and query metrics from QueryStatistics when creating TableResult in getQueryResults().
• Tests: Added unit tests in TableResultTest and BigQueryImplTest verifying field retrieval, pagination propagation, builder modifications, and serialization.

[gemini-code-assist]

Code Review

This pull request updates the BigQuery dependency version and propagates query execution statistics—including statement type, total bytes billed, total bytes processed, total slot milliseconds, and affected DML rows—from query results and job statistics into the TableResult object. The review feedback suggests wrapping the StatementType.valueOf() conversion in a try-catch block to gracefully handle any unrecognized statement types returned by the BigQuery service and prevent runtime exceptions.

[lqiu96]

@keshavdandeva FYI, I'm going to upgrade the bigquery apiary version in #14149

[keshavdandeva]

/gemini review

[gemini-code-assist]

Code Review

This pull request updates the BigQuery client to expose additional query statistics and session information (such as statement type, bytes billed/processed, slot milliseconds, affected DML rows, and session info) in TableResult, along with updating the BigQuery API dependency version and adding corresponding unit tests. Feedback was provided to wrap the StatementType.valueOf conversion in a try-catch block to prevent runtime crashes if the backend returns an unrecognized statement type.

[Neenu1995]

Add an IT test to verify that this values is getting propagated from the backend correctly.