Ning Sun 3510ef7d4c feat!: update native histogram unsigned int types (#8824) ...

* feat(native-histogram): store counts and span lengths as signed integers

Native histograms are unreleased, so the on-disk integer payload columns
are switched from unsigned to signed types without backward-compat:

  - count_u64 / zero_count_u64: uint64 -> int64
  - positive_span_lengths / negative_span_lengths: list(uint32) -> list(int32)
  - Span.length (query-time model): u32 -> i32

The Prometheus remote-write v2 source carries these as uint64/uint32, so
the unsigned->signed conversion at the ingestion boundary is overflow
checked: an integer count >= 2^63 or a span length >= 2^31 is rejected
with an explicit error rather than silently wrapping to a negative value.
read_spans additionally rejects negative stored lengths to keep the
non-negative invariant sound for downstream `as usize` casts.

The UDAF accumulator's own observation counter (transient aggregation
state, not part of the persisted histogram value) is intentionally left
as uint64.

Signed-off-by: Ning Sun <sunning@greptime.com>

* refactor(native-histogram): rename count/zero_count fields to _i64

Now that the integer payload columns are stored as int64, rename the
field constants and persisted names to match:

  COUNT_U64_FIELD  ("count_u64")      -> COUNT_I64_FIELD  ("count_i64")
  ZERO_COUNT_U64_FIELD ("zero_count_u64") -> ZERO_COUNT_I64_FIELD ("zero_count_i64")

The local builder variables and the docs/JSON snapshot are updated to
match. No backward-compat (unreleased feature).

Signed-off-by: Ning Sun <sunning@greptime.com>

* test(native-histogram): refresh planner plan snapshot for signed types

The mixed native-histogram range test embeds the full histogram Struct
type in its expected plan string, which still carried the pre-rename
unsigned fields. Update the snapshot to match the signed schema:

  positive/negative_span_lengths: List(UInt32) -> List(Int32)
  count_u64/zero_count_u64: UInt64            -> count_i64/zero_count_i64: Int64

Signed-off-by: Ning Sun <sunning@greptime.com>

---------

Signed-off-by: Ning Sun <sunning@greptime.com>

2026-08-11 08:55:27 +00:00

..

database_ddl_event.rs

fix(event): preserve procedure lifecycle locators (#8787)

2026-08-11 07:12:45 +00:00

event_recorder_test_util.rs

feat(metasrv): add batch GC lifecycle events (#8673)

2026-07-31 07:13:56 +00:00

flow_ddl_event.rs

fix(event): preserve procedure lifecycle locators (#8787)

2026-08-11 07:12:45 +00:00

gc_event.rs

feat(event): add event context to procedure events (#8734)

2026-08-07 12:37:58 +00:00

grpc.rs

feat: add health-aware gRPC client routing (#8684)

2026-08-05 06:16:51 +00:00

http.rs

feat!: update native histogram unsigned int types (#8824)

2026-08-11 08:55:27 +00:00

json2.rs

fix(mito): failed to compact memtable with json2 (#8297)

2026-06-26 08:52:06 +00:00

jsonbench.rs

feat(json2): type hint (#8247)

2026-06-30 07:37:31 +00:00

main.rs

feat(metasrv): add batch GC lifecycle events (#8673)

2026-07-31 07:13:56 +00:00

mysql.rs

fix: mysql prepare correctly returns error instead of panic (#7963)

2026-04-15 01:59:16 +00:00

region_migration.rs

feat(event): add event context to procedure events (#8734)

2026-08-07 12:37:58 +00:00

repartition_event.rs

fix(event): preserve procedure lifecycle locators (#8787)

2026-08-11 07:12:45 +00:00

repartition_expr_version.rs

refactor: rename partition rule version to partition expr version (#7696)

2026-02-10 10:12:47 +00:00

repartition.rs

feat(event): add event context to procedure events (#8734)

2026-08-07 12:37:58 +00:00

sql.rs

Support unquoted postgres intervalstyle (#8637)

2026-07-26 15:02:18 +00:00

table_ddl_event.rs

fix(event): preserve procedure lifecycle locators (#8787)

2026-08-11 07:12:45 +00:00

view_ddl_event.rs

fix(event): preserve procedure lifecycle locators (#8787)

2026-08-11 07:12:45 +00:00

wal_prune_event.rs

refactor(event): store procedure trigger as JSONB (#8700)

2026-07-31 13:22:26 +00:00