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database/sql: fix Rows.Columns() documentation

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Fixes #27202

Change-Id: I83620748a81500e433795c7b2b7f13399d17f777
GitHub-Last-Rev: 64457e12ce
GitHub-Pull-Request: golang/go#27472
Reviewed-on: https://go-review.googlesource.com/133057
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
This commit is contained in:
Alexey Palazhchenko 2018-09-03 16:24:12 +00:00 • committed by Daniel Theophanes
parent 5188c87c95
commit 5ed30d82b7
1 changed files with 1 additions and 2 deletions
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3
src/database/sql/sql.go
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@ -2735,8 +2735,7 @@ func (rs *Rows) Err() error {
}
// Columns returns the column names.
// Columns returns an error if the rows are closed, or if the rows
// are from QueryRow and there was a deferred error.
// Columns returns an error if the rows are closed.
func (rs *Rows) Columns() ([]string, error) {
rs.closemu.RLock()
defer rs.closemu.RUnlock()