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Handy-spanner doesn't support new method.
Then when I update cloud.google.com/go/spanner to 1.36.0, I get this error.

*server does not implement FakeSpannerServer (missing ListDatabaseRoles method)

Request:

I am trying to use handy-spanner emulator for project using spanner and we have CURRENT_TIMESTAMP functions used in queries, right now it is not supported by this emulator.

Is it possible for handy-spanner support CURRENT_TIMESTAMP function? It already supports PENDING_COMMIT_TIMESTAMP and implementation should be similar to this.

My project needs to simulate a offline spanner, but except handy-spanner, I can't find a better solution at present.However, it fully not yet supported DML.

Can handy-spanner support DML or is there any plans to support DML in the future?

Currently, handy-spanner supports only DML for ExecuteSql and only queries for ExecuteStreamingSql.
In the real instance, the both of ExecuteSql and ExecuteStreamingSql can execute the both of queries and DMLs.

It makes handy-spanner incompatible with the current behavior of spanner-cli.
(THEN RETURN support needs to execute DMLs using ExecuteStreamingSql in the current Cloud Spanner client library.)
cloudspannerecosystem/spanner-cli#151

spanner> INSERT INTO Counter(pk, col) VALUES(0, 0);
ERROR: spanner: code = "InvalidArgument", desc = "Syntax error: \"INSERT INTO Counter(pk, col) VALUES(0, 0)\": syntax error::1:1: expected token: SELECT, but: <ident>\n\n  1:  INSERT INTO Counter(pk, col) VALUES(0, 0)\n      ^~~~~~\n"

For example, how do I create a database locally and how can I view my data in sqlite3？

The following SQL will cause an error.

CREATE TABLE table ( Id INT64 NOT NULL DEFAULT (3)) PRIMARY KEY (Id) 
invalid ddl "CREATE TABLE table ( Id INT64 NOT NULL DEFAULT (3)) PRIMARY KEY (Id)": syntax error::1:41: expected token: ), but: DEFAULT

Are there any plans for handy-spanner to support the DEFAULT keyword?

Spanner release notes:
https://cloud.google.com/spanner/docs/release-notes#April_14_2022
Document:
https://cloud.google.com/spanner/docs/reference/standard-sql/data-definition-language#ddl_syntax