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The client has been using
BEGIN DEFERRED
as the transaction mode, which is almost never the most useful option:This PR introduces
TransactionMode
, which allows the user to select one of these options:"write"
doesBEGIN IMMEDIATE
, so that write transactions are serialized instead of aborted"read"
doesBEGIN TRANSACTION READONLY
, so that sqld can optimize it as read-only (this syntax is not yet recognized and treated asBEGIN DEFERRED
by sqld)"deferred"
explicitly opts intoBEGIN DEFERRED
.