Accountsdb plugin transaction part 4 -- postgres plugin implementations -- DB models (#21407)

AccountsDb plugin for transactions -- part 4 -- persisting to the Db.
1. DB models for transactions
2. Rust models for transactions
3. Transform from SDK models to rust db models
4. Unit tests

accountsdb-plugin-postgres/scripts/create_schema.sql

@@ -20,10 +20,137 @@ CREATE TABLE account (
 CREATE TABLE slot (
     slot BIGINT PRIMARY KEY,
     parent BIGINT,
-    status varchar(16) NOT NULL,
+    status VARCHAR(16) NOT NULL,
     updated_on TIMESTAMP NOT NULL
 );
 
+-- Types for Transactions
+
+Create TYPE "TransactionErrorCode" AS ENUM (
+    'AccountInUse',
+    'AccountLoadedTwice',
+    'AccountNotFound',
+    'ProgramAccountNotFound',
+    'InsufficientFundsForFee',
+    'InvalidAccountForFee',
+    'AlreadyProcessed',
+    'BlockhashNotFound',
+    'InstructionError',
+    'CallChainTooDeep',
+    'MissingSignatureForFee',
+    'InvalidAccountIndex',
+    'SignatureFailure',
+    'InvalidProgramForExecution',
+    'SanitizeFailure',
+    'ClusterMaintenance',
+    'AccountBorrowOutstanding',
+    'WouldExceedMaxAccountCostLimit',
+    'WouldExceedMaxBlockCostLimit',
+    'UnsupportedVersion',
+    'InvalidWritableAccount'
+);
+
+CREATE TYPE "TransactionError" AS (
+    error_code "TransactionErrorCode",
+    error_detail VARCHAR(256)
+);
+
+CREATE TYPE "CompiledInstruction" AS (
+    program_id_index SMALLINT,
+    accounts SMALLINT[],
+    data BYTEA
+);
+
+CREATE TYPE "InnerInstructions" AS (
+    index SMALLINT,
+    instructions "CompiledInstruction"[]
+);
+
+CREATE TYPE "TransactionTokenBalance" AS (
+    account_index SMALLINT,
+    mint VARCHAR(44),
+    ui_token_amount DOUBLE PRECISION,
+    owner VARCHAR(44)
+);
+
+Create TYPE "RewardType" AS ENUM (
+    'Fee',
+    'Rent',
+    'Staking',
+    'Voting'
+);
+
+CREATE TYPE "Reward" AS (
+    pubkey VARCHAR(44),
+    lamports BIGINT,
+    post_balance BIGINT,
+    reward_type "RewardType",
+    commission SMALLINT
+);
+
+CREATE TYPE "TransactionStatusMeta" AS (
+    error "TransactionError",
+    fee BIGINT,
+    pre_balances BIGINT[],
+    post_balances BIGINT[],
+    inner_instructions "InnerInstructions"[],
+    log_messages TEXT[],
+    pre_token_balances "TransactionTokenBalance"[],
+    post_token_balances "TransactionTokenBalance"[],
+    rewards "Reward"[]
+);
+
+CREATE TYPE "TransactionMessageHeader" AS (
+    num_required_signatures SMALLINT,
+    num_readonly_signed_accounts SMALLINT,
+    num_readonly_unsigned_accounts SMALLINT
+);
+
+CREATE TYPE "TransactionMessage" AS (
+    header "TransactionMessageHeader",
+    account_keys BYTEA[],
+    recent_blockhash BYTEA,
+    instructions "CompiledInstruction"[]
+);
+
+CREATE TYPE "AddressMapIndexes" AS (
+    writable SMALLINT[],
+    readonly SMALLINT[]
+);
+
+CREATE TYPE "TransactionMessageV0" AS (
+    header "TransactionMessageHeader",
+    account_keys BYTEA[],
+    recent_blockhash BYTEA,
+    instructions "CompiledInstruction"[],
+    address_map_indexes "AddressMapIndexes"[]
+);
+
+CREATE TYPE "MappedAddresses" AS (
+    writable BYTEA[],
+    readonly BYTEA[]
+);
+
+CREATE TYPE "MappedMessage" AS (
+    message "TransactionMessageV0",
+    mapped_addresses "MappedAddresses"
+);
+
+-- The table storing transactions
+CREATE TABLE transaction (
+    slot BIGINT NOT NULL,
+    signature BYTEA NOT NULL,
+    is_vote BOOL NOT NULL,
+    message_type SMALLINT, -- 0: legacy, 1: v0 message
+    legacy_message "TransactionMessage",
+    v0_mapped_message "MappedMessage",
+    signatures BYTEA[],
+    message_hash BYTEA,
+    meta "TransactionStatusMeta",
+    updated_on TIMESTAMP NOT NULL,
+    CONSTRAINT transaction_pk PRIMARY KEY (slot, signature)
+);
+
 /**
  * The following is for keeping historical data for accounts and is not required for plugin to work.
  */
@@ -40,6 +167,8 @@ CREATE TABLE account_audit (
     updated_on TIMESTAMP NOT NULL
 );
 
+CREATE INDEX account_audit_account_key ON  account_audit (pubkey, write_version);
+
 CREATE FUNCTION audit_account_update() RETURNS trigger AS $audit_account_update$
     BEGIN
 		INSERT INTO account_audit (pubkey, owner, lamports, slot, executable, rent_epoch, data, write_version, updated_on)