Deduplicate rows in subquery #409
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woop
previously approved these changes
Jan 6, 2020
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: zhilingc The full list of commands accepted by this bot can be found here. The pull request process is described here
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: zhilingc The full list of commands accepted by this bot can be found here. The pull request process is described here
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/lgtm |
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There is a loophole in the way the bq batch queries are done that if there are multiple rows with the same event timestamp, created timestamp and entity ids, the query will return duplicate rows.
This patch deduplicates subquery results, preventing that from happening.