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bigquery: handleInsertErrors: equality check should be >=, not > #3519

@muscovite

Description

@muscovite

Client

BigQuery Go API

Environment

All

Go Environment

All

Code

https://github.com/googleapis/google-cloud-go/blob/bigquery/v1.14.0/bigquery/inserter.go#L226

The > check

 if int(e.Index) > len(rows)

should be >=

 if int(e.Index) >= len(rows)

Otherwise, the next lines can attempt to access an out of range index:

rie := RowInsertionError{
	InsertID: rows[e.Index].InsertId,
	RowIndex: int(e.Index),
}

Expected behavior

No out of bounds errors

Actual behavior

panic: runtime error: index out of range [1] with length 1

goroutine 1432095 [running]:/vendor/cloud.google.com/go/bigquery.handleInsertErrors(0xc0002c8500, 0x3e8, 0x42a, 0xc000012708, 0x1, 0x1, 0x0, 0xc00f377ce8)
        ...vendor/cloud.google.com/go/bigquery/inserter.go:236 +0x56a/vendor/cloud.google.com/go/bigquery.(*Inserter).putMulti(0xc00029a7a0, 0xdbd580, 0xc04648e8d0, 0xc04649c200, 0x1, 0x1, 0x0, 0xdbd580)
        .../vendor/cloud.google.com/go/bigquery/inserter.go:191 +0x3b1/vendor/cloud.google.com/go/bigquery.(*Inserter).Put(0xc00029a7a0, 0xdbd580, 0xc04648e870, 0xb6edc0, 0xc00023c980, 0x0, 0x0)
... // the rest of the stack trace is no longer in library code

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api: bigqueryIssues related to the BigQuery API.priority: p2Moderately-important priority. Fix may not be included in next release.type: bugError or flaw in code with unintended results or allowing sub-optimal usage patterns.

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