Cannot filter using accent Insensitive

Bug description

I’ve looked in all the places trying to find a way to use {where: {field: {contains: 'João' } } and retrieve all the results without matching of accents,

The result I expect: i.e : João = Joao

I’ve tried to add a collation that ignore accents manually in the field that I’m searching, like this:

// Creating the collation
CREATE COLLATION ignore_accent (provider = icu, locale = 'und-u-ks-level1-kc-true', deterministic = false);

// Creating the table with the collation already applied in the field
CREATE TABLE "protocols" (
    "id" SERIAL NOT NULL,
    "title" TEXT NOT NULL COLLATE ignore_accent,

    CONSTRAINT "protocols_pkey" PRIMARY KEY ("id")
);

But It is showing me this error

ConnectorError(ConnectorError {
 user_facing_error: None, kind: QueryError(Error {
 kind: Db, cause: Some(DbError { severity: "ERROR", 
parsed_severity: Some(Error), code: SqlState(E0A000), 
message: "nondeterministic collations are not supported for ILIKE", detail: None, hint: None, position: None, where_: None, schema: None, table: None, column: None, datatype: None, constraint: None, file: Some("like.c"), line: Some(199), routine: Some("Generic_Text_IC_like") 
}) }) })