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Use COALESCE in PostgreSQL

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This commit is contained in:
Neil Alexander 2021-04-21 17:29:37 +01:00
parent fc1d6bc5e6
commit 94f3de2798
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1 changed files with 2 additions and 2 deletions
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4
roomserver/storage/postgres/deltas/2021041615092700_state_blocks_refactor.go
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@ -51,10 +51,10 @@ func UpStateBlocksRefactor(tx *sql.Tx) error {
if err := tx.QueryRow(`SELECT COUNT(DISTINCT state_snapshot_nid) FROM roomserver_state_snapshots;`).Scan(&snapshotcount); err != nil {
return fmt.Errorf("tx.QueryRow.Scan (count snapshots): %w", err)
}
if err := tx.QueryRow(`SELECT MAX(state_snapshot_nid) FROM roomserver_state_snapshots;`).Scan(&maxsnapshotid); err != nil {
if err := tx.QueryRow(`SELECT COALESCE(MAX(state_snapshot_nid),0) FROM roomserver_state_snapshots;`).Scan(&maxsnapshotid); err != nil {
return fmt.Errorf("tx.QueryRow.Scan (count snapshots): %w", err)
}
if err := tx.QueryRow(`SELECT MAX(state_block_nid) FROM roomserver_state_block;`).Scan(&maxblockid); err != nil {
if err := tx.QueryRow(`SELECT COALESCE(MAX(state_block_nid),0) FROM roomserver_state_block;`).Scan(&maxblockid); err != nil {
return fmt.Errorf("tx.QueryRow.Scan (count snapshots): %w", err)
}
maxsnapshotid++