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database/sql: update doc related to per-connection state

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Fixes #25330

Change-Id: I41b5b3459ed7808d18112ec02d734e2268099a81
Reviewed-on: https://go-review.googlesource.com/116596
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
This commit is contained in:
Eugene Kalinin 2018-06-06 18:01:02 +03:00 committed by Daniel Theophanes
parent 235c5cf153
commit 9e4c344c72
1 changed files with 2 additions and 2 deletions
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4
src/database/sql/sql.go
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@ -340,8 +340,8 @@ var ErrNoRows = errors.New("sql: no rows in result set")
//
// The sql package creates and frees connections automatically; it
// also maintains a free pool of idle connections. If the database has
// a concept of per-connection state, such state can only be reliably
// observed within a transaction. Once DB.Begin is called, the
// a concept of per-connection state, such state can be reliably observed
// within a transaction (Tx) or connection (Conn). Once DB.Begin is called, the
// returned Tx is bound to a single connection. Once Commit or
// Rollback is called on the transaction, that transaction's
// connection is returned to DB's idle connection pool. The pool size