Переписаны запросы, которые предотвращают автоинкремент в случае, если производится повторная попытка добавления существующей записи

source/cdcdb/dblite.d

@@ -285,8 +285,10 @@ public:
 		auto queryResult = sql(
 			q{
 				INSERT INTO blobs (sha256, z_sha256, size, z_size, content, zstd)
-				VALUES (?,?,?,?,?,?)
-				ON CONFLICT (sha256) DO NOTHING
+				SELECT ?1,?2,?3,?4,?5,?6
+				WHERE NOT EXISTS (
+						SELECT 1 FROM blobs WHERE sha256 = ?1
+					)
 				RETURNING sha256
 			},
 			blob.sha256[],
@@ -305,8 +307,11 @@ public:
 	{
 		auto queryResult = sql(
 			q{
-				INSERT INTO processes (name) VALUES (?)
-				ON CONFLICT(name) DO NOTHING
+				INSERT INTO processes (name)
+				SELECT ?1
+				WHERE NOT EXISTS (
+						SELECT 1 FROM processes WHERE name = ?1
+					)
 			}, name
 		);
 
@@ -318,8 +323,11 @@ public:
 	{
 		auto queryResult = sql(
 			q{
-				INSERT INTO files (name) VALUES (?)
-				ON CONFLICT(name) DO NOTHING
+				INSERT INTO files (name)
+				SELECT ?1
+				WHERE NOT EXISTS (
+						SELECT 1 FROM files WHERE name = ?1
+					)
 			}, name
 		);
 
@@ -332,8 +340,10 @@ public:
 		auto queryResult = sql(
 			q{
 				INSERT INTO users (uid, name)
-				VALUES (?, ?)
-				ON CONFLICT(uid) DO NOTHING;
+				SELECT ?1,?2
+				WHERE NOT EXISTS (
+						SELECT 1 FROM users WHERE uid = ?1
+					)
 			}, uid, name
 		);