GoogleBigtableAdminV2TypeStructEncodingOrderedCodeBytes
import type { GoogleBigtableAdminV2TypeStructEncodingOrderedCodeBytes } from "https://googleapis.deno.dev/v1/bigtableadmin:v2.ts";Fields are encoded independently, then escaped and delimited by appling the
following rules in order: - While the last remaining field is ASC or
UNSPECIFIED, and encodes to the empty string "", remove it. - In each
remaining field, replace all null bytes 0x00 with the fixed byte pair
{0x00, 0xFF}. - If any remaining field encodes to the empty string "",
replace it with the fixed byte pair {0x00, 0x00}. - Append the fixed byte
pair {0x00, 0x01} to each remaining field, except for the last remaining
field if it is ASC. - Bitwise negate all DESC fields. - Concatenate the
results, or emit the fixed byte pair {0x00, 0x00} if there are no remaining
fields to concatenate. Examples: ``` - STRUCT() -> "\00\00" - STRUCT("") ->
"\00\00" - STRUCT("", "") -> "\00\00" - STRUCT("", "B") -> "\00\00" +
"\00\01" + "B" - STRUCT("A", "") -> "A" - STRUCT("", "B", "") -> "\00\00" +
"\00\01" + "B" - STRUCT("A", "", "C") -> "A" + "\00\01" + "\00\00" + "\00\01"
- "C"
Examples for struct with `DESC` fields:- STRUCT("" DESC) -> "\xFF\xFF" + "\xFF\xFE" - STRUCT("" DESC, "") -> "\xFF\xFF" + "\xFF\xFE" - STRUCT("" DESC, "", "") -> "\xFF\xFF" + "\xFF\xFE" - STRUCT("" DESC, "A") -> "\xFF\xFF" + "\xFF\xFE" + "A" - STRUCT("A", "" DESC, "") -> "A" + "\00\01" + "\xFF\xFF" + "\xFF\xFE" - STRUCT("", "A" DESC) -> "\x00\x00" + "\x00\x01" + "\xBE" + "\xFF\xFE" ``` Since null bytes are always escaped, this encoding can cause size blowup for encodings likeInt64.BigEndianBytesthat are likely to produce many such bytes. Sorted mode: - Fields are encoded in sorted mode. - All values supported by the field encodings are allowed. - Fields with unset or `UNSPECIFIED` order are treated as `ASC`. - Element-wise order is preserved: `A < B` if `A[0] < B[0]`, or if `A[0] == B[0] && A[1] < B[1]`, etc. Strict prefixes sort first. Distinct mode: - Fields are encoded in distinct mode. - All values supported by the field encodings are allowed.