BlockchainAdvanced
Address lookup table
An onchain list of Solana addresses that v0 transactions can reference through compact indexes.
PLAIN-ENGLISH DEFINITION
In more detail
Instead of repeating each full address, a transaction points to entries in the table. This saves message space; the validator resolves the addresses before execution, and lookup-table entries cannot supply required transaction signers.
IN THE WILD
How you might use it
A complex swap references pool accounts from a lookup table while keeping your signer address in the message.
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