store: handle case insensitive array inputs in query

* store: handle case insensitive array inputs in query

* test: add test for case insensitive query

Author: shiyasmohd

store/postgres/src/relational_queries.rs

@@ -1618,17 +1618,31 @@ impl<'a> Filter<'a> {
                     out.push_sql(") > 0");
                 }
             }
-            SqlValue::List(_) | SqlValue::Numerics(_) => {
-                if op.negated() {
-                    out.push_sql(" not ");
-                    column.walk_ast(out.reborrow())?;
-                    out.push_sql(" && ");
-                } else {
+            SqlValue::List(_) | SqlValue::Numerics(_) => match op {
+                // For case-insensitive operations
+                ContainsOp::ILike | ContainsOp::NotILike => {
+                    if op.negated() {
+                        out.push_sql(" not ");
+                    }
+                    out.push_sql("exists (select 1 from unnest(");
                     column.walk_ast(out.reborrow())?;
-                    out.push_sql(" @> ");
+                    out.push_sql(") as elem where elem ilike any(");
+                    qv.walk_ast(out.reborrow())?;
+                    out.push_sql("))");
                 }
-                qv.walk_ast(out)?;
-            }
+                _ => {
+                    // For case-sensitive operations
+                    if op.negated() {
+                        out.push_sql(" not ");
+                        column.walk_ast(out.reborrow())?;
+                        out.push_sql(" && ");
+                    } else {
+                        column.walk_ast(out.reborrow())?;
+                        out.push_sql(" @> ");
+                    }
+                    qv.walk_ast(out)?;
+                }
+            },
             SqlValue::Null
             | SqlValue::Bool(_)
             | SqlValue::Numeric(_)

store/test-store/tests/graphql/query.rs

@@ -2880,6 +2880,31 @@ fn can_query_with_or_explicit_and_filter() {
     })
 }
 
+#[test]
+fn can_query_array_contains_nocase() {
+    const QUERY: &str = "
+    query {
+        musicians(where: { bands_contains_nocase: [\"B1\", \"B2\"] }) {
+            name
+            bands { id }
+        }
+    }
+    ";
+
+    run_query(QUERY, |result, _| {
+        let exp = object! {
+            musicians: vec![
+                object! { name: "John", bands: vec![object! { id: "b1" }, object! { id: "b2" }] },
+                object! { name: "Lisa", bands: vec![object! { id: "b1" }] },
+                object! { name: "Tom", bands: vec![object! { id: "b1" }, object! { id: "b2" }] },
+                object! { name: "Paul", bands: vec![ object! { id: "b2" }] },
+            ],
+        };
+        let data = extract_data!(result).unwrap();
+        assert_eq!(data, exp);
+    })
+}
+
 #[test]
 fn can_query_with_or_implicit_and_filter() {
     const QUERY: &str = "