Commit Graph

4 Commits

Author SHA1 Message Date
dennis zhuang c894a2468c fix(query): preserve timestamp literal semantics in inserts (#8889)
* fix(query): follow timestamp insert assignment lineage

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* fix(query): fold constant insert timestamp literals at the assignment

Following lineage by retyping the source column changed every output
column that reads it: a string column sharing the literal was silently
rewritten to a formatted timestamp, and a nanosecond column was
truncated to the precision of whichever column was converted first.

Resolve the constant read-only and fold it into the assignment
expression instead, which leaves the source query untouched and also
covers literals behind WHERE, ORDER BY and DISTINCT. VALUES rows and
UNION branches carry per-row values, so they keep the in-place rewrite,
now guarded against columns with more than one consumer.

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* test(query): strengthen insert lineage regression

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* test(query): trim redundant insert coverage

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* fix(query): rebuild insert unions loosely and cover UNION distinct

Per review: rebuilding a rewritten union with the strict constructor
rejected legal pre-coercion plans whose untouched columns still differ
across branches. Use try_new_with_loose_types, matching the SQL planner.

Distinct::All joins the rewrite passthrough so UNION (distinct) literals
get session-timezone parsing like UNION ALL; deduplication then keys on
parsed instants instead of raw strings. The top-level rewrite path gains
the same single-consumer guard as rewrite_projection for hand-built DML
plans that share a source column between targets.

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* style(query): tighten insert assignment comments

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

---------

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
(cherry picked from commit b2fc4b9cba4c0e137cc6f704d88dfe7f187b57aa)
(cherry picked from commit 1775e31a7916cf09a7da8238cebea5e3d74817f7)
2026-08-21 11:51:11 +08:00
Morax 824c5acfa7 fix(query): respect query timezone in timestamp casts (#8859)
* fix(query): respect timezone in insert values

Signed-off-by: Morax <james20081204@gmail.com>

* fix(query): normalize timestamp casts with query timezone

Signed-off-by: Morax <james20081204@gmail.com>

* fix(query): scope timestamp conversion to insert assignments

Signed-off-by: Morax <james20081204@gmail.com>

* style(query): simplify Arc usage

Signed-off-by: Morax <james20081204@gmail.com>

---------

Signed-off-by: Morax <james20081204@gmail.com>
(cherry picked from commit f479ddb38f3bdaf29fcb2e174bdfb8f5a13c8e19)
(cherry picked from commit a6c99a5334af982888f83b17e592316161b21daf)
2026-08-21 11:51:11 +08:00
Lei, HUANG 69870e2762 fix(mito): use 1day as default time partition duration (#6202)
* fix unit tests

* fix: sqlness

* fix/default-time-window:
 ## Add Helper Functions and Enhance Compaction Tests

 - **Refactor Compaction Logic**: Introduced helper functions `flush` and `compact` in `compaction_test.rs` to streamline compaction operations.
 - **Enhance Compaction Tests**: Added a new test `test_infer_compaction_time_window` in `compaction_test.rs` to verify compaction time window inference.
 - **Testing Improvements**: Added `#[cfg(test)]` attribute to `new_multi_partitions` in `time_partition.rs` to ensure it's only included in test builds.

* fix/default-time-window:
 - **Refactor `TimePartition` Struct**: Removed unnecessary comments regarding `time_range` in `time_partition.rs`.
 - **Enhance `TimePartitions` Functionality**: Added a method `part_duration_or_default` to provide a default partition duration in `time_partition.rs`.
 - **Update SQL Test Cases**: Modified SQL operations and expected results in `scan_big_varchar.result` and `scan_big_varchar.sql` to reflect changes in data manipulation logic.

* fix/default-time-window:
 ### Update Time Partition Default Duration

 - **Refactor Default Duration**: Introduced `INITIAL_TIME_WINDOW` constant to define the default time window duration as `Duration::from_days(1)`. This change replaces multiple instances of the hardcoded default duration across the `time_partition.rs` file.
 - **Files Affected**: `time_partition.rs`

* fix/default-time-window:
 ## Update Partition Duration Handling

 - **`time_partition.rs`**: Refactored `part_duration` to be non-optional, removing `Option` wrapper. Updated logic to use `unwrap_or` with `INITIAL_TIME_WINDOW` where necessary. Adjusted related methods and tests to accommodate this change.
 - **`version.rs` (memtable and region)**: Updated handling of `part_duration` to align with changes in `time_partition.rs`, ensuring consistent use of non-optional `Duration`.

* fix/default-time-window:
 ### Improve Error Context in `time_partition.rs`

 - Enhanced error context message in `time_partition.rs` to provide clearer information on partition time range issues, including bucket size details.

Signed-off-by: Lei, HUANG <lhuang@greptime.com>

---------

Signed-off-by: Lei, HUANG <lhuang@greptime.com>
2025-06-08 16:20:26 +00:00
dennis zhuang 43ef0820c0 fix: SQL insertion and column default constraint aware of timezone (#3266)
* fix: missing timezone when parsing sql value to greptimedb value

* test: sql_value_to_value

* fix: column default constraint missing timezone

* test: column def default constraint  with timezone

* test: adds sqlness test for default constraint aware of timezone

* fix: typo

* chore: comment
2024-01-30 09:15:38 +00:00