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google-cloud v1.3.0 Release Notes

Release Date: 2020-03-17 // about 4 years ago
    • Query options:
      • Adds the support of providing query options (optimizer version) via
        three ways (precedence follows the order):
        client-level < environment variables < query-level. The environment
        ⚡️ variable is set by "SPANNER_OPTIMIZER_VERSION".

    • Connection pooling:

      • Use the new connection pooling in gRPC. This change deprecates
        🚚 ClientConfig.numChannels and users should move to
        WithGRPCConnectionPool(numChannels) at their earliest convenience.
        Example:

      // numChannels (deprecated):err, client := NewClientWithConfig(ctx, database, ClientConfig{NumChannels: 8})// gRPC connection pool:err, client := NewClientWithConfig(ctx, database, ClientConfig{}, option.WithGRPCConnectionPool(8))

    • Error handling:

      • Do not rollback after failed commit.
      • Return TransactionOutcomeUnknownError if a DEADLINE_EXCEEDED or CANCELED
        error occurs while a COMMIT request is in flight.

    • spansql:

      • Added support for IN expressions and OFFSET clauses.
      • Fixed parsing of table constraints.
      • Added support for foreign key constraints in ALTER TABLE and CREATE TABLE.
      • Added support for GROUP BY clauses.

    • ✅ spannertest:

      • Added support for IN expressions and OFFSET clauses.
      • Added support for GROUP BY clauses.
      • Fixed data race in query execution.
      • No longer rejects reads specifying an index to use.
      • Return last commit timestamp as read timestamp when requested.
      • Evaluate add, subtract, multiply, divide, unary
        negation, unary not, bitwise and/xor/or operations, as well as reporting
        column types for expressions involving any possible arithmetic
        operator.arithmetic expressions.
      • Fixed handling of descending primary keys.

    • Misc:

      • Change default healthcheck interval to 30 mins to reduce the GetSession
        calls made to the backend.
      • Add marshal/unmarshal json for nullable types to support NullString,
        👕 NullInt64, NullFloat64, NullBool, NullTime, NullDate.
      • Use ResourceInfo to extract error.
      • Extract retry info from status.