Connection options in the open function

[szkiba]

Connection options in the open function: An optional options parameter can be used in open() to specify database connection-related options.

sql.open(driver, "roster_db", opts)

Properties:

• conn_max_idle_time: Sets the maximum amount of time a connection may be idle. If 0, connections are not closed due to a connection's idle time. A duration string is a possibly signed sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". Example:

  const db = sql.open(driver, "roster_db", { conn_max_idle_time: "1h10m10s" });

• conn_max_lifetime: Sets the maximum amount of time a connection may be reused. If 0, connections are not closed due to a connection's age. A duration string is a possibly signed sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". Example:

  const db = sql.open(driver, "roster_db", { conn_max_lifetime: "10h" });

• max_idle_conns: Sets the maximum number of connections in the idle connection pool. If 0, no idle connections are retained. The default is currently 2. Example:

  const db = sql.open(driver, "roster_db", { max_idle_conns: 3 });

• max_open_conns: Sets the maximum number of open connections to the database. If 0, then there is no limit on the number of open connections. The default is 0 (unlimited). Example:

  const db = sql.open(driver, "roster_db", { max_open_conns: 100 });

Also fixex #113