TypeORM array is not supported in postgres?

I tried all of the solutions already mentioned, but none of them worked. Finally found solution among the Github issues in TypeORM repo.

I quote the solution:

This was a simple fix, the type of the column shouldn't be an array. Changed to this and it now works:

@Column({array: true})
tags: string;

Better documentation on arrays would have been useful.

Source

The docs says, that it should work:

@Column("int", { array: true })
array: number[];

this is from the example https://github.com/typeorm/typeorm/blob/master/test/functional/database-schema/column-types/postgres/entity/Post.ts

In your code the array property is no array. Have you tried kid_ages: string[];?

For people looking to deal with arrays or string within your entities, based on @thopaw 's answer, you can use the following code:

@Column("text", { array: true })
kid_ages: string[];

As mentioned above, you can create Postgres' array column with next code:

@Column("int", { array: true })
kid_ages: number[];

If you then need to find some kid with age 5, use this:

kid = getRepository('kid')
        .createQueryBuilder()
        .where(':kid_age = ANY (kid.kid_ages)', { kid_age: 5 });