diff options
Diffstat (limited to 'src/database/sql/sql.go')
| -rw-r--r-- | src/database/sql/sql.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/database/sql/sql.go b/src/database/sql/sql.go index 099701ce7c..71800aae83 100644 --- a/src/database/sql/sql.go +++ b/src/database/sql/sql.go @@ -2882,6 +2882,7 @@ func rowsColumnInfoSetupConnLocked(rowsi driver.Rows) []*ColumnType { // *float32, *float64 // *interface{} // *RawBytes +// *Rows (cursor value) // any type implementing Scanner (see Scanner docs) // // In the most simple case, if the type of the value from the source @@ -2918,6 +2919,11 @@ func rowsColumnInfoSetupConnLocked(rowsi driver.Rows) []*ColumnType { // // For scanning into *bool, the source may be true, false, 1, 0, or // string inputs parseable by strconv.ParseBool. +// +// Scan can also convert a cursor returned from a query, such as +// "select cursor(select * from my_table) from dual", into a +// *Rows value that can itself be scanned from. The parent +// select query will close any cursor *Rows if the parent *Rows is closed. func (rs *Rows) Scan(dest ...interface{}) error { rs.closemu.RLock() @@ -2939,7 +2945,7 @@ func (rs *Rows) Scan(dest ...interface{}) error { return fmt.Errorf("sql: expected %d destination arguments in Scan, not %d", len(rs.lastcols), len(dest)) } for i, sv := range rs.lastcols { - err := convertAssign(dest[i], sv) + err := convertAssignRows(dest[i], sv, rs) if err != nil { return fmt.Errorf(`sql: Scan error on column index %d, name %q: %v`, i, rs.rowsi.Columns()[i], err) } |