| Field | Description |
|---|---|
| LSN (Log Sequence Number) | Unique ID for the record, defines ordering. |
| CRC (Cyclic Redundancy Check) | Used to detect corruption in the record. |
| Operation Data | Actual change (e.g., INSERT, UPDATE, DELETE). |
| Previous Record LSN | Pointer to the last WAL record, forming a chain. |
saurabhs13
/ wal-file-structure.md
Created
September 24, 2025 15:04
saurabhs13
/ utf8-ranges.md
Last active
September 20, 2025 18:24
| Unicode Range | Bit Count | Byte Sequence |
|---|---|---|
| U+0000 → U+007F | 7 | 0xxxxxxx |
| U+0080 → U+07FF | 11 | 110xxxxx 10xxxxxx |
| U+0800 → U+FFFF | 16 | 1110xxxx 10xxxxxx 10xxxxxx |
| U+10000 → U+10FFFF | 21 | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx |
- Here,
xbits are the actual Unicode code point bits.