Fix parquet page pruning test

Author: alamb

datafusion/common/src/scalar/mod.rs

@@ -978,6 +978,11 @@ impl ScalarValue {
         ScalarValue::from(val.into())
     }
 
+    /// Returns a [`ScalarValue::Utf8View`] representing `val`
+    pub fn new_utf8view(val: impl Into<String>) -> Self {
+        ScalarValue::Utf8View(Some(val.into()))
+    }
+
     /// Returns a [`ScalarValue::IntervalYearMonth`] representing
     /// `years` years and `months` months
     pub fn new_interval_ym(years: i32, months: i32) -> Self {

datafusion/core/tests/parquet/page_pruning.rs

@@ -149,8 +149,9 @@ async fn page_index_filter_one_col() {
     let session_ctx = SessionContext::new();
     let task_ctx = session_ctx.task_ctx();
 
-    // 5.create filter date_string_col == 1;
-    let filter = col("date_string_col").eq(lit("01/01/09"));
+    // 5.create filter date_string_col == "01/01/09"`;
+    // Note this test doesn't apply type coercion so the literal must match the actual view type
+    let filter = col("date_string_col").eq(lit(ScalarValue::new_utf8view("01/01/09")));
     let parquet_exec = get_parquet_exec(&state, filter).await;
     let mut results = parquet_exec.execute(0, task_ctx.clone()).unwrap();
     let batch = results.next().await.unwrap().unwrap();