Package-level declarations

map from the column name as declared in the schema, to the column name that we'll create in the final (typed) table.

Some destinations can efficiently fetch multiple tables' information in a single query, so this interface accepts multiple streams in a single method call.

better handling for temp table names - e.g. postgres has a 64-char table name limit, so we want to avoid running into that. This method generates a table name with (by default) at most 64 characters (4 * affixLength + 2 * affixSeparator.length + hashLength).

Represents a list of SQL transactions, where each transaction consists of one or more SQL statements. Each transaction MUST NOT contain the BEGIN/COMMIT statements. Each inner list is a single transaction, and each String is a single statement within that transaction.