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fix: reduce bigquery table modification via DML for to_gbq #1737

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fix: reduce bigquery table modification via DML for to_gbq #1737

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@chelsea-lin chelsea-lin commented May 14, 2025 •
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To avoid exceeding BigQuery's 1500 daily table modification limit, to_gbq now prioritizes INSERT or MERGE DMLs. This method is used when the target table exists and shares the same schema, supporting both data replacement and appending. If schema discrepancies are found, to_gbq will default back to its original table modification process.

Fixes internal issue 409086472 🦕

@chelsea-lin chelsea-lin requested a review from tswast May 14, 2025 23:43
@product-auto-label product-auto-label bot added size: m Pull request size is medium. api: bigquery Issues related to the googleapis/python-bigquery-dataframes API. labels May 14, 2025
@chelsea-lin chelsea-lin force-pushed the main_chelsealin_togbqmerge branch 2 times, most recently from 056c6c8 to 5180abb Compare May 15, 2025 19:53
@product-auto-label product-auto-label bot added size: l Pull request size is large. and removed size: m Pull request size is medium. labels May 15, 2025
@chelsea-lin chelsea-lin changed the title fix: avoid table modification on to_gbq fix: reduce bigquery table modification via DML for to_gbq May 15, 2025
@chelsea-lin chelsea-lin force-pushed the main_chelsealin_togbqmerge branch from 5180abb to 1c32d28 Compare May 15, 2025 20:04
@product-auto-label product-auto-label bot added size: m Pull request size is medium. and removed size: l Pull request size is large. labels May 15, 2025
@chelsea-lin chelsea-lin marked this pull request as ready for review May 15, 2025 20:05
@chelsea-lin chelsea-lin requested review from a team as code owners May 15, 2025 20:05
@chelsea-lin chelsea-lin force-pushed the main_chelsealin_togbqmerge branch from 1c32d28 to d8ce12f Compare May 16, 2025 01:21
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api: bigquery Issues related to the googleapis/python-bigquery-dataframes API. size: m Pull request size is medium.
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