fix(db): change prefix column type to TEXT in prefix_snapshot_row

Updated the prefix column in the prefix_snapshot_row table from CIDR to TEXT to accommodate broader input formats. Adjusted related SQL insert statements accordingly.

internal/repository/postgres_prefix_snapshot.go

@@ -86,7 +86,7 @@ func (p *Postgres) ensurePrefixSnapshot(ctx context.Context, db execQuerier, con
 		}
 		if _, err := db.Exec(ctx, `
 			INSERT INTO prefix_snapshot_row (snapshot_id, ord, prefix, community_id, source)
-			VALUES ($1::uuid, $2, $3::cidr, $4::uuid, $5)`,
+			VALUES ($1::uuid, $2, $3, $4::uuid, $5)`,
 			snapID, i, strings.TrimSpace(pr.Prefix), comm, src); err != nil {
 			return "", err
 		}

internal/repository/postgres_seed.go

@@ -97,8 +97,8 @@ protocol direct {
 	}
 	if _, err := tx.Exec(ctx, `
 		INSERT INTO prefix_snapshot_row (snapshot_id, ord, prefix, community_id, source)
-		VALUES ($1::uuid, 0, '203.0.113.0/24'::cidr, $2::uuid, 'demo'),
-		       ($1::uuid, 1, '2001:db8::/32'::cidr, $2::uuid, 'demo')`, snapID, cid); err != nil {
+		VALUES ($1::uuid, 0, '203.0.113.0/24', $2::uuid, 'demo'),
+		       ($1::uuid, 1, '2001:db8::/32', $2::uuid, 'demo')`, snapID, cid); err != nil {
 		return err
 	}
 	if _, err := tx.Exec(ctx, `

migrations/postgres/000016_prefix_snapshot.up.sql

@@ -10,7 +10,7 @@ CREATE TABLE prefix_snapshot (
 CREATE TABLE prefix_snapshot_row (
     snapshot_id   UUID NOT NULL REFERENCES prefix_snapshot (id) ON DELETE CASCADE,
     ord           INTEGER NOT NULL,
-    prefix        CIDR NOT NULL,
+    prefix        TEXT NOT NULL,
     community_id  UUID REFERENCES bgp_community (id) ON DELETE SET NULL,
     source        TEXT NOT NULL DEFAULT '',
     PRIMARY KEY (snapshot_id, ord)

migrations/postgres/000017_prefix_snapshot_backfill.up.sql

@@ -1,4 +1,8 @@
 -- Backfill prefix snapshots from revision_materialized_prefix.
+-- prefix_snapshot_row.prefix is TEXT (revision_materialized_prefix.prefix since 000003).
+
+ALTER TABLE prefix_snapshot_row
+    ALTER COLUMN prefix TYPE TEXT USING prefix::text;
 
 WITH new_snaps AS (
     INSERT INTO prefix_snapshot (id, content_hash)