Missing support for NUMERIC[] using rust_decimal

[tm-drtina]

I've encountered an issue when I had $1::numeric[] in a query and the compiler reported:

error: optional feature bigdecimal required for type NUMERIC[] of param # 1

It seems there is a support for NUMERIC type using rust_decimal crate with feature = "decimal", but not for NUMERIC[] type.

Is it just missing implementation here for decimal feature?

sqlx/sqlx-macros/src/database/postgres.rs

Lines 117 to 118 in f858138

	#[cfg(feature = "bigdecimal")]
	Vec<sqlx::types::BigDecimal> | &[sqlx::types::BigDecimal],

Edit: I've tried to just "blindly" copy&paste the bigdecimal impl and it seems to just work https://github.com/tm-drtina/sqlx/commit/b9d48baf173bf5cd2c5b2fe4deb04ecfdf6652d6

[abonander]

Sounds like a simple oversight, if you want to open a PR with your fix we'd accept it.

[tm-drtina]

PR opened, I've rebased it on master, since I'm using that branch are cargo patch of 0.5.11