[BUG] preserve empty line between SQL blocks

[loynoir]

Describe the bug
linesBetweenQueries: preserve but empty lines are removed.

To Reproduce

  "sqltools.format": {
    "linesBetweenQueries": "preserve"
  }

CREATE TABLE `bar` (
  `id` int NOT NULL,
  `name` varchar(200) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;

CREATE TABLE `foo` (
  `id` int NOT NULL,
  `name` varchar(200) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;

CREATE TABLE `qaz` (
  `id` int NOT NULL,
  `name` varchar(200) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;

Expected behavior
Empty line preserved when linesBetweenQueries: preserve

Actual behavior
Empty line removed when linesBetweenQueries: preserve

CREATE TABLE `bar` (
  `id` int NOT NULL,
  `name` varchar(200) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci;
CREATE TABLE `foo` (
  `id` int NOT NULL,
  `name` varchar(200) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci;


CREATE TABLE `qaz` (
  `id` int NOT NULL,
  `name` varchar(200) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci;

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• SQLTools Version 0.23.0
• VSCode Version: 1.59.1
• OS: Linux
• Driver:
  • PostgreSQL/Redshift
  • MySQL/MariaDB
  • MSSQL/Azure
  • SQLite
  • Other? Which...
• Database version: mysql 8.0.29

Additional context
DBeaver > select > Generate SQL > DDL

[loynoir]

#507

[gjsjohnmurray]

Does #887 (comment) help you?

[martijnarts]

I'm finding the same. Trying to keep the line count preserved has very unpredictable behaviour, but always ends up in all blank lines being removed after a few saves.

[gjsjohnmurray]

Simple case:

SELECT 1 FROM contacts;

SELECT 2 FROM contacts;

SELECT 3 FROM contacts;

SELECT 4 FROM contacts;

After first format:

SELECT 1
FROM contacts;
SELECT 2
FROM contacts;

SELECT 3
FROM contacts;


SELECT 4
FROM contacts;

After second format:

SELECT 1
FROM contacts;
SELECT 2
FROM contacts;
SELECT 3
FROM contacts;



SELECT 4
FROM contacts;