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Enable Redshift support for specifying null treatment inside window function #2293

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Enable Redshift support for specifying null treatment inside window function #2293

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4 changes: 4 additions & 0 deletions src/dialect/redshift.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -156,4 +156,8 @@ impl Dialect for RedshiftSqlDialect {
fn supports_string_literal_concatenation_with_newline(&self) -> bool {
true
}

fn supports_window_function_null_treatment_arg(&self) -> bool {
true
}
}
6 changes: 6 additions & 0 deletions tests/sqlparser_redshift.rs
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Expand Up @@ -511,3 +511,9 @@ fn test_create_table_backup() {
"CREATE TABLE public.users_backup_test BACKUP YES DISTSTYLE AUTO AS SELECT id, name, email FROM public.users",
);
}

#[test]
fn test_null_treatment_inside_and_outside_window_function() {
redshift().verified_stmt("SELECT FIRST_VALUE(1 IGNORE NULLS) OVER () FROM (SELECT 1) t");
redshift().verified_stmt("SELECT FIRST_VALUE(1) IGNORE NULLS OVER () FROM (SELECT 1) t");
}
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