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Add key/value separators for schema doc

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Roman Zeyde 2018-08-01 13:41:27 +03:00
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doc/schema.md
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@ -6,26 +6,26 @@ The index is stored at a single RocksDB database using the following schema:
Allows efficiently finding all funding transactions for a specific address:
| Code | Script Hash Prefix | Funding TxID Prefix |
| ------ | -------------------- | --------------------- |
| `b'O'` | `SHA256(script)[:8]` | `txid[:8]` |
| Code | Script Hash Prefix | Funding TxID Prefix | |
| ------ | -------------------- | --------------------- | - |
| `b'O'` | `SHA256(script)[:8]` | `txid[:8]` | |
## Transaction inputs' index
Allows efficiently finding spending transaction of a specific output:
| Code | Funding TxID Prefix | Funding Output Index | Spending TxID Prefix |
| ------ | -------------------- | --------------------- | --------------------- |
| `b'I'` | `txid[:8]` | `uint16` | `txid[:8]` |
| Code | Funding TxID Prefix | Funding Output Index | Spending TxID Prefix | |
| ------ | -------------------- | --------------------- | --------------------- | - |
| `b'I'` | `txid[:8]` | `uint16` | `txid[:8]` | |
## Full Transaction IDs
In order to save storage space, we store the full transaction IDs once, and use their 8-byte prefixes for the indexes above.
| Code | Transaction ID | Confirmed height |
| ------ | ----------------- |------------------|
| `b'T'` | `txid` (32 bytes) | `uint32` |
| Code | Transaction ID | | Confirmed height |
| ------ | ----------------- | - | ------------------ |
| `b'T'` | `txid` (32 bytes) | | `uint32` |
Note that this mapping allows us to use `getrawtransaction` RPC to retrieve actual transaction data from without `-txindex` enabled
(by explicitly specifying the [blockhash](https://github.com/bitcoin/bitcoin/commit/497d0e014cc79d46531d570e74e4aeae72db602d)).