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Implements the design from discussion #77. Adds server-side named prepared statements: parse SQL once with Session.prepare(), execute multiple times with NamedPreparedQuery, clean up with Session.close_statement(). PrepareReceiver interface provides prepare lifecycle callbacks. New queue item union type (_QueueItem) replaces the tuple-based queue to support three operation types: queries, prepares, and close statements. Two new in-flight states (_PrepareInFlight, _CloseStatementInFlight) handle the protocol sequences. Design: #77
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SeanTAllen
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Feb 10, 2026
Reflects PR #78: NamedPreparedQuery, PrepareReceiver, _QueueItem union, _PrepareInFlight/_CloseStatementInFlight states, new frontend messages, new tests, example, and updated supported features.
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Implements the design from discussion #77. Adds
Session.prepare()to create server-side named statements,Session.close_statement()to destroy them,NamedPreparedQueryto execute them, andPrepareReceiverfor prepare lifecycle callbacks.Breaking change: the
Queryunion type expands to includeNamedPreparedQuery, requiring a new branch in exhaustive matches.