Collect1 runs the query, which must select for a single column that can be scanned into a value of type T, and returns a slice of the resulting values.

CollectStructs scans the rows from the query into structs and returns a slice of them.

ConnectAndExecute connects to the postgres database specified by uri and executes dbFunc, then cleans up the database connection.

CopyFromChan returns a CopyFromSource that gets its rows from a channel.

CreateDB creates a new database dbName.

CreateDBIfNotExists checks whether the given dbName is an existing database, and creates one if not.

DBConnURI generates a postgres connection string in URI format.

DropDB drops the database named dbName.

New creates a new DB from a sql.DB.

NullIsEmpty returns a sql.Scanner that writes the empty string to s if the sql.Value is NULL.

NullPtr is for scanning nullable database columns into pointer variables or fields.

Open creates a new DB for the given connection string.

RegisterOCWrapper registers a driver that wraps the OpenCensus driver, which in turn wraps the driver named as the first argument.

ResetDB truncates all data from the given test DB.

StructScanner returns a function that, when called on a struct pointer of its argument type, returns a slice of arguments suitable for Row.Scan or Rows.Scan.

TryToMigrate attempts to migrate the database named dbName to the latest migration.

QueryLoggingDisabled stops logging of queries when true.

DB wraps a sql.DB.

A RowItem is a row of values or an error.

MultiErr can be used to combine one or more errors into a single error.