go-pg v9.2.0中begin transaction出错

Question

我已经将go-pg库从v9.0.3更新到v9.2.0。

获取错误：

panic: not reached [recovered]
        panic: not reached

        /usr/local/go/src/runtime/panic.go:969 +0x175
github.com/go-pg/pg/v9/internal/pool.(*SingleConnPool).SetConn(...)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/internal/pool/pool_single.go:61
github.com/go-pg/pg/v9.(*baseDB).initConn(0xc0002440f0, 0x1efb500, 0xc00019e008, 0xc000292550, 0x0, 0x0)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/base.go:115 +0x585
github.com/go-pg/pg/v9.(*baseDB).getConn(0xc0002440f0, 0x1efb500, 0xc00019e008, 0x0, 0x0, 0x0)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/base.go:79 +0x90
github.com/go-pg/pg/v9.(*baseDB).withConn(0xc0002440f0, 0x1efb500, 0xc00019e008, 0xc000813c00, 0x0, 0x0)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/base.go:133 +0x7c
github.com/go-pg/pg/v9.(*Tx).withConn(...)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/tx.go:96
github.com/go-pg/pg/v9.(*Tx).exec(0xc00072c980, 0x1efb500, 0xc00019e008, 0x1bd4d20, 0x1ec3250, 0x0, 0x0, 0x0, 0x8, 0xc000078cd0, ...)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/tx.go:149 +0x1f0
github.com/go-pg/pg/v9.(*Tx).ExecContext(...)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/tx.go:139
github.com/go-pg/pg/v9.(*Tx).begin(0xc00072c980, 0x1efb500, 0xc00019e008, 0x4b2, 0x0)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/tx.go:339 +0xb6
github.com/go-pg/pg/v9.(*baseDB).Begin(0xc000244000, 0x25f0b4e, 0x24, 0xc000589ea0)
        /Users/sanches1984/go/src/github.com/sanches1984/statclass/vendor/github.com/go-pg/pg/v9/tx.go:53 +0x1ca
github.com/sanches1984/gopkg-database.(*dbWrapper).StartTransaction(0xc0007180c0, 0x0, 0x25f0b4e, 0x24, 0xc0000003f3)

在以下位置失败：

tx, err := conn.Begin()

发现他们修复了它的here，但它不工作。有什么问题吗？

Answer 1

首先检查它是否链接到应该在PR 1688中解析的go-pg/pg issue 1687。

该PR仅在v10.0.0-beta.9中可用，因此您需要显式upgrade your dependency

go get github.com/go-pg/pg@v10.0.0-beta.14