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SelectJoinedHostsForRooms should use QueryVariadic on SQLite (#1238)

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* SelectJoinedHostsForRooms should use QueryVariadic on SQLite

* Fix strings.Replace

* Fix statement
This commit is contained in:
Neil Alexander 2020-08-05 10:00:35 +01:00 committed by GitHub
parent 2197e54441
commit 22f028e141
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 11 deletions
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21
federationsender/storage/sqlite3/joined_hosts_table.go
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@ -18,6 +18,7 @@ package sqlite3
import (
"context"
"database/sql"
"strings"
"github.com/matrix-org/dendrite/federationsender/types"
"github.com/matrix-org/dendrite/internal"
@ -63,13 +64,13 @@ const selectJoinedHostsForRoomsSQL = "" +
"SELECT DISTINCT server_name FROM federationsender_joined_hosts WHERE room_id IN ($1)"
type joinedHostsStatements struct {
db *sql.DB
writer *sqlutil.TransactionWriter
insertJoinedHostsStmt *sql.Stmt
deleteJoinedHostsStmt *sql.Stmt
selectJoinedHostsStmt *sql.Stmt
selectAllJoinedHostsStmt *sql.Stmt
selectJoinedHostsForRoomsStmt *sql.Stmt
db *sql.DB
writer *sqlutil.TransactionWriter
insertJoinedHostsStmt *sql.Stmt
deleteJoinedHostsStmt *sql.Stmt
selectJoinedHostsStmt *sql.Stmt
selectAllJoinedHostsStmt *sql.Stmt
// selectJoinedHostsForRoomsStmt *sql.Stmt - prepared at runtime due to variadic
}
func NewSQLiteJoinedHostsTable(db *sql.DB) (s *joinedHostsStatements, err error) {
@ -93,9 +94,6 @@ func NewSQLiteJoinedHostsTable(db *sql.DB) (s *joinedHostsStatements, err error)
if s.selectAllJoinedHostsStmt, err = db.Prepare(selectAllJoinedHostsSQL); err != nil {
return
}
if s.selectJoinedHostsForRoomsStmt, err = db.Prepare(selectJoinedHostsForRoomsSQL); err != nil {
return
}
return
}
@ -168,7 +166,8 @@ func (s *joinedHostsStatements) SelectJoinedHostsForRooms(
iRoomIDs[i] = roomIDs[i]
}
rows, err := s.selectJoinedHostsForRoomsStmt.QueryContext(ctx, iRoomIDs...)
sql := strings.Replace(selectJoinedHostsForRoomsSQL, "($1)", sqlutil.QueryVariadic(len(iRoomIDs)), 1)
rows, err := s.db.QueryContext(ctx, sql, iRoomIDs...)
if err != nil {
return nil, err
}