movements

Description

Core transaction records. Each movement transfers an integer amount from one account to another. Movements with the same batch_id form a linked transaction (compound entry). Inspired by TigerBeetle's transfer model with code, ledger, and pending_id fields.

Table Definition

CREATE TABLE movements (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    batch_id INTEGER NOT NULL,
    from_account_id INTEGER NOT NULL,
    to_account_id INTEGER NOT NULL,
    amount INTEGER NOT NULL,
    code INTEGER NOT NULL DEFAULT 0,
    ledger INTEGER NOT NULL DEFAULT 0,
    pending_id INTEGER NOT NULL DEFAULT 0,
    user_data_64 INTEGER NOT NULL DEFAULT 0,
    value_time TEXT NOT NULL,
    knowledge_time TEXT DEFAULT (datetime('now')),
    description TEXT NOT NULL DEFAULT ''
)

Columns

Name	Type	Default	Nullable	Parents	Comment
amount	INTEGER		false		Transfer amount in smallest currency unit (integer at account exponent)
batch_id	INTEGER		false		Groups related movements into a single atomic transaction
code	INTEGER	0	false		Movement category: 0=normal, 1=interest accrual (TigerBeetle-inspired)
description	TEXT	''	false		Human-readable description of the movement
from_account_id	INTEGER		false	accounts	Source account (references accounts.id)
id	INTEGER		true		Auto-incrementing primary key
knowledge_time	TEXT	datetime('now')	true		When the system recorded this movement (knowledge date)
ledger	INTEGER	0	false		Partition identifier for multi-ledger setups (TigerBeetle-inspired)
pending_id	INTEGER	0	false		Two-phase commit: references pending movement to post/void (0=N/A)
to_account_id	INTEGER		false	accounts	Destination account (references accounts.id)
user_data_64	INTEGER	0	false		Arbitrary external reference for application use
value_time	TEXT		false		When the movement economically occurred (value date)

Constraints

Name	Type	Definition
id	PRIMARY KEY	PRIMARY KEY (id)

Indexes

Name	Definition
idx_movements_batch	CREATE INDEX idx_movements_batch ON movements(batch_id)
idx_movements_code	CREATE INDEX idx_movements_code ON movements(to_account_id, code, value_time)
idx_movements_from	CREATE INDEX idx_movements_from ON movements(from_account_id, value_time)
idx_movements_to	CREATE INDEX idx_movements_to ON movements(to_account_id, value_time)

Relations

erDiagram

"movements" }o--|| "accounts" : "movements.from_account_id -> accounts.id"
"movements" }o--|| "accounts" : "movements.to_account_id -> accounts.id"

"movements" {
  INTEGER amount "Transfer amount in smallest currency unit (integer at account exponent)"
  INTEGER batch_id "Groups related movements into a single atomic transaction"
  INTEGER code "Movement category: 0=normal, 1=interest accrual (TigerBeetle-inspired)"
  TEXT description "Human-readable description of the movement"
  INTEGER from_account_id "Source account (references accounts.id)"
  INTEGER id "Auto-incrementing primary key"
  TEXT knowledge_time "When the system recorded this movement (knowledge date)"
  INTEGER ledger "Partition identifier for multi-ledger setups (TigerBeetle-inspired)"
  INTEGER pending_id "Two-phase commit: references pending movement to post/void (0=N/A)"
  INTEGER to_account_id "Destination account (references accounts.id)"
  INTEGER user_data_64 "Arbitrary external reference for application use"
  TEXT value_time "When the movement economically occurred (value date)"
}
"accounts" {
  TEXT account_id "Specific account identifier within the product"
  TEXT account_type "One of: Asset, Liability, Equity, Income, Expense"
  TEXT address "Sub-address within the account (e.g. branch). 'Pending' marks pending accounts"
  REAL annual_interest_rate "Annual interest rate as a decimal (0.045 = 4.5%)"
  TEXT created_at "Timestamp when the account was created"
  TEXT currency "ISO 4217 currency code (e.g. GBP, USD)"
  INTEGER exponent "Decimal exponent for amount precision (-2 = pence, -5 = high precision)"
  TEXT full_path "Hierarchical account path, e.g. Asset:Bank:Current:Main"
  INTEGER id "Auto-incrementing primary key"
  INTEGER is_pending "True if this is a pending/suspense account"
  TEXT product "Product category within the account type"
}

Generated by tbls