diff --git a/src/pragma.rs b/src/pragma.rs
index 259d970..d218951 100644
--- a/src/pragma.rs
+++ b/src/pragma.rs
@@ -298,15 +298,15 @@ fn is_identifier(s: &str) -> bool {
 }
 
 fn is_identifier_start(c: char) -> bool {
-    (c >= 'A' && c <= 'Z') || c == '_' || (c >= 'a' && c <= 'z') || c > '\x7F'
+    ('A'..='Z').contains(&c) || c == '_' || ('a'..='z').contains(&c) || c > '\x7F'
 }
 
 fn is_identifier_continue(c: char) -> bool {
     c == '$'
-        || (c >= '0' && c <= '9')
-        || (c >= 'A' && c <= 'Z')
+        || ('0'..='9').contains(&c)
+        || ('A'..='Z').contains(&c)
         || c == '_'
-        || (c >= 'a' && c <= 'z')
+        || ('a'..='z').contains(&c)
         || c > '\x7F'
 }
 
diff --git a/src/vtab/array.rs b/src/vtab/array.rs
index 53b31a7..bd3197a 100644
--- a/src/vtab/array.rs
+++ b/src/vtab/array.rs
@@ -157,7 +157,7 @@ impl ArrayTabCursor<'_> {
 unsafe impl VTabCursor for ArrayTabCursor<'_> {
     fn filter(&mut self, idx_num: c_int, _idx_str: Option<&str>, args: &Values<'_>) -> Result<()> {
         if idx_num > 0 {
-            self.ptr = args.get_array(0)?;
+            self.ptr = args.get_array(0);
         } else {
             self.ptr = None;
         }
diff --git a/src/vtab/mod.rs b/src/vtab/mod.rs
index ee095f0..4d9ad65 100644
--- a/src/vtab/mod.rs
+++ b/src/vtab/mod.rs
@@ -571,19 +571,19 @@ impl Values<'_> {
     // `sqlite3_value_type` returns `SQLITE_NULL` for pointer.
     // So it seems not possible to enhance `ValueRef::from_value`.
     #[cfg(feature = "array")]
-    fn get_array(&self, idx: usize) -> Result<Option<array::Array>> {
+    fn get_array(&self, idx: usize) -> Option<array::Array> {
         use crate::types::Value;
         let arg = self.args[idx];
         let ptr = unsafe { ffi::sqlite3_value_pointer(arg, array::ARRAY_TYPE) };
         if ptr.is_null() {
-            Ok(None)
+            None
         } else {
-            Ok(Some(unsafe {
+            Some(unsafe {
                 let rc = array::Array::from_raw(ptr as *const Vec<Value>);
                 let array = rc.clone();
                 array::Array::into_raw(rc); // don't consume it
                 array
-            }))
+            })
         }
     }