Bring latest master PRs to PG18 #2276
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…raph (apache#2248) Fixed issue 2245 - Creating more than 41 vlabels causes drop_grapth to fail with "label (relation) cache corrupted" and crashing out on the following command. This was due to corruption of the label_relation_cache during the HASH_DELETE process. As the issue was with a cache flush routine, it was necessary to fix them all. Here is the list of the flush functions that were fixed - static void flush_graph_name_cache(void) static void flush_graph_namespace_cache(void) static void flush_label_name_graph_cache(void) static void flush_label_graph_oid_cache(void) static void flush_label_relation_cache(void) static void flush_label_seq_name_graph_cache(void) Added regression tests. modified: regress/expected/catalog.out modified: regress/sql/catalog.sql modified: src/backend/utils/cache/ag_cache.c
- Whenever a label will be created, indices on id columns will be created by default. In case of vertex, a unique index on id column will be created, which will also serve as a unique constraint. In case of edge, a non-unique index on start_id and end_id columns will be created. - This change is expected to improve the performance of queries that involve joins. From some performance tests, it was observed that the performance of queries improved alot. - Loader was updated to insert tuples in indices as well. This has caused to slow the loader down a bit, but it was necessary. - A bug related to command ids in cypher_delete executor was also fixed. Resolved conflicts: regress/expected/cypher_match.out regress/expected/expr.out
…ache#2259) Fixed issue 2256: A segmentation fault occurs when calling the coalesce function in PostgreSQL version 17. This likely predates 17 and includes other similar types of "functions". See issues 1124 (PR 1125) and 1303 (PR 1317) for more details. This issue is due to coalesce() being processed differently from other functions. Additionally, greatest() was found to exhibit the same behavior. They were added to the list of types to ignore during the cypher analyze phase. A few others were added: CaseExpr, XmlExpr, ArrayExpr, & RowExpr. Although, I wasn't able to find cases where these caused crashes. Added regression tests. modified: regress/expected/cypher.out modified: regress/sql/cypher.sql modified: src/backend/parser/cypher_analyze.c
Adjusted the following type of error message. It was mentioned in
issue 2263 as being incorrect, which it isn't. However, it did need
some clarification added -
ERROR: could not find rte for <column name>
Added a HINT for additional clarity -
HINT: variable <column name> does not exist within scope of usage
For example:
CREATE p0=(n0), (n1{k:EXISTS{WITH p0}}) RETURN 1
ERROR: could not find rte for p0
LINE 3: CREATE p0=(n0), (n1{k:EXISTS{WITH p0}})
^
HINT: variable p0 does not exist within scope of usage
Additionally, added pstate->p_expr_kind == EXPR_KIND_INSERT_TARGET to
transform_cypher_clause_as_subquery.
Updated existing regression tests.
Added regression tests from issue.
modified: regress/expected/cypher_call.out
modified: regress/expected/cypher_subquery.out
modified: regress/expected/cypher_union.out
modified: regress/expected/cypher_with.out
modified: regress/expected/expr.out
modified: regress/expected/list_comprehension.out
modified: regress/expected/scan.out
modified: src/backend/parser/cypher_clause.c
modified: src/backend/parser/cypher_expr.c
- Used postgres memory allocation functions instead of standard ones. - Wrapped main loop of csv loader in PG_TRY block for better error handling.
NOTE: This PR was partially created with AI tools and reviewed by a human.
ORDER BY clauses failed when referencing column aliases from RETURN:
MATCH (p:Person) RETURN p.age AS age ORDER BY age DESC
ERROR: could not find rte for age
Added SQL-99 compliant alias matching to find_target_list_entry() that
checks if ORDER BY identifier matches a target list alias before
attempting expression transformation. This enables standard SQL behavior
for sorting by aliased columns with DESC/DESCENDING/ASC/ASCENDING.
Updated regression tests.
Added regression tests.
modified: regress/expected/cypher_match.out
modified: regress/expected/expr.out
modified: regress/sql/expr.sql
modified: src/backend/parser/cypher_clause.c
Consolidated duplicate code, added helper functions, and reviewed
the grammar file for issues.
NOTE: I used an AI tool to review and cleanup the grammar file. I
have reviewed all of the work it did.
Improvements:
1. Added KEYWORD_STRDUP macro to eliminate hardcoded string lengths
2. Consolidated EXPLAIN statement handling into make_explain_stmt helper
3. Extracted WITH clause validation into validate_return_item_aliases helper
4. Created make_default_return_node helper for subquery return-less logic
Benefits:
- Reduced code duplication by ~150 lines
- Improved maintainability with helper functions
- Eliminated manual string length calculations (error-prone)
All 29 existing regression tests pass
modified: src/backend/parser/cypher_gram.y
apache#2267) - Changed '\s' to r'\s'
- Add pyproject.toml with package configuration - Simplify setup.py to minimal backward-compatible wrapper. - Updated CI workflow and .gitignore. - Resolves warning about using setup.py directly.
This PR applies restrictions to the following age_load commands -
load_labels_from_file()
load_edges_from_file()
They are now tied to a specific root directory and are required to have a
specific file extension to eliminate any attempts to force them to access
any other files.
Nothing else has changed with the actual command formats or parameters,
only that they work out of the /tmp/age directory and only access files
with an extension of .csv.
Added regression tests and updated the location of the csv files for
those regression tests.
modified: regress/expected/age_load.out
modified: regress/sql/age_load.sql
modified: src/backend/utils/load/age_load.c
github-actions
bot
added
master
override-stale
MuhammadTahaNaveed
approved these changes
Dec 16, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Cherry picked the following PRs from the master branch to bring PG18 branch in sync with the master branch -