3 replies

Help understanding "--> statement-breakpoint"

Sorry for maybe such a "beginner" question, but im pretty new to database management and have a question around an "issue" im running in to trying to create migrations for my project w/ drizzle

So looking at the docs (https://orm.drizzle.team/kit-docs/conf#sql-breakpoints), I see that drizzle will automatically insert these comment breakpoints into any generated migration files as some dialects (sqlite/libsql/turso in my case) needs them in order to have multiple DDL statements (https://www.javatpoint.com/ddl-commands-in-sql) in the same migration file.

Cool. This (somewhat) makes sense and so far things seem to work just fine. The issue im running into is creating a "custom" migration file, and doing some

INSERT

INSERT

commands. If I try to run the following, instead of seeing both rows added to the table, only 1 will be:

-- Custom SQL migration file, put you code below! --

INSERT INTO `some_table` VALUES (1, "foo");
INSERT INTO `some_table` VALUES (2, "bar");

-- Custom SQL migration file, put you code below! --

INSERT INTO `some_table` VALUES (1, "foo");
INSERT INTO `some_table` VALUES (2, "bar");

However if I add the breakpoint comment like the generated migrations, both entries get added when I run the migration:

-- Custom SQL migration file, put you code below! --

INSERT INTO `some_table` VALUES (1, "foo");--> statement-breakpoint
INSERT INTO `some_table` VALUES (2, "bar");

-- Custom SQL migration file, put you code below! --

INSERT INTO `some_table` VALUES (1, "foo");--> statement-breakpoint
INSERT INTO `some_table` VALUES (2, "bar");

It was my understanding that these breakpoints are only needed for DDL commands, but im trying to do DML commands (https://www.javatpoint.com/dml-commands-in-sql). Is this a bug or am I just misunderstanding some fundamental part since im still pretty new to all this?

Also, is there something special about

--> statement-breakpoint

--> statement-breakpoint

? Like, I tried googling that to get more info on what it does but nothing really came up. Is it a special "drizzle" string?

Hopefully my questions makes sense. It took me forever to realize why I kept getting errors and running into problems so maybe this will help others as well.

www.javatpoint.com

DDL Commands in SQL - javatpoint

DDL Commands in SQL with sql, tutorial, examples, insert, update, delete, select, join, database, table, join etc, SQL CAST Function, SQL Formatter.

Drizzle ORM - next gen TypeScript ORM

Drizzle ORM is a lightweight and performant TypeScript ORM with developer experience in mind.

Help understanding "--> statement-breakpoint"

INSERT

INSERT

commands. If I try to run the following, instead of seeing both rows added to the table, only 1 will be:

-- Custom SQL migration file, put you code below! --

INSERT INTO `some_table` VALUES (1, "foo");
INSERT INTO `some_table` VALUES (2, "bar");

-- Custom SQL migration file, put you code below! --

INSERT INTO `some_table` VALUES (1, "foo");
INSERT INTO `some_table` VALUES (2, "bar");

However if I add the breakpoint comment like the generated migrations, both entries get added when I run the migration:

-- Custom SQL migration file, put you code below! --

INSERT INTO `some_table` VALUES (1, "foo");--> statement-breakpoint
INSERT INTO `some_table` VALUES (2, "bar");

-- Custom SQL migration file, put you code below! --

INSERT INTO `some_table` VALUES (1, "foo");--> statement-breakpoint
INSERT INTO `some_table` VALUES (2, "bar");

--> statement-breakpoint

--> statement-breakpoint

www.javatpoint.com

DDL Commands in SQL - javatpoint

DDL Commands in SQL with sql, tutorial, examples, insert, update, delete, select, join, database, table, join etc, SQL CAST Function, SQL Formatter.

Drizzle ORM - next gen TypeScript ORM

Drizzle ORM is a lightweight and performant TypeScript ORM with developer experience in mind.

Help understanding "--> statement-breakpoint"

Help understanding "--> statement-breakpoint"

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