Implement NOT NULL constraint check for UPDATE

core/translate/emitter.rs

@@ -1095,6 +1095,19 @@ fn emit_update_insns(
                     target_reg,
                     &t_ctx.resolver,
                 )?;
+                use crate::error::SQLITE_CONSTRAINT_NOTNULL;
+                program.emit_insn(Insn::HaltIfNull {
+                    target_reg,
+                    err_code: SQLITE_CONSTRAINT_NOTNULL,
+                    description: format!(
+                        "{}.{}",
+                        table_ref.table.get_name(),
+                        table_column
+                            .name
+                            .as_ref()
+                            .expect("Column name must be present")
+                    ),
+                });
             }
         } else {
             let column_idx_in_index = index.as_ref().and_then(|(idx, _)| {