support immutable entities

Author: Zoran Cvetkov

store/postgres/src/block_range.rs

@@ -288,10 +288,27 @@ impl<'a> BlockRangeColumn<'a> {
             BlockRangeColumn::ImmutableRange {
                 table: _,
                 table_prefix: _,
-                block_range: _,
+                block_range: BlockRange(start, finish),
             } => {
-                println!("ImmutableRange conatins()");
-                todo!()
+                out.push_sql("block$ >= ");
+                match start {
+                    Bound::Included(block) => out.push_bind_param::<Integer, _>(block)?,
+                    Bound::Excluded(block) => {
+                        out.push_bind_param::<Integer, _>(block)?;
+                        out.push_sql("+1");
+                    }
+                    Bound::Unbounded => todo!(),
+                };
+                out.push_sql(" AND block$ <= ");
+                match finish {
+                    Bound::Included(block) => {
+                        out.push_bind_param::<Integer, _>(block)?;
+                        out.push_sql("+1");
+                    }
+                    Bound::Excluded(block) => out.push_bind_param::<Integer, _>(block)?,
+                    Bound::Unbounded => todo!(),
+                };
+                Ok(())
             }
         }
     }

store/postgres/src/relational_queries.rs

@@ -496,6 +496,9 @@ impl EntityData {
                             .unwrap();
                         let n = start.parse::<i32>().unwrap();
                         Some(n)
+                    } else if key == "block$" {
+                        let block = json.as_i64().unwrap() as i32;
+                        Some(block)
                     } else {
                         None
                     }