BE-418: Add ROW constructor expression to PostgreSQL query builder by TimDiekmann · Pull Request #8470 · hashintel/hash

TimDiekmann · 2026-02-22T23:54:36Z

🌟 What is the purpose of this PR?

This PR adds support for PostgreSQL row constructors in the query expression system. Row constructors allow building composite row values from individual expressions, which is useful for creating structured data in SQL queries.

🔗 Related links

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🚫 Blocked by

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🔍 What does this change?

Adds a new Row(Vec<Self>) variant to the Expression enum for representing row constructors
Implements the Transpile trait for the new Row variant, generating ROW(e1, e2, ...) syntax in PostgreSQL
Includes proper comma separation between expressions within the row constructor

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

are internal and do not require a docs change

🕸️ Does this require a change to the Turbo Graph?

The changes in this PR:

do not affect the execution graph

⚠️ Known issues

🐾 Next steps

🛡 What tests cover this?

❓ How to test this?

Checkout the branch / view the deployment
Try X
Confirm that Y

📹 Demo

vercel · 2026-02-22T23:54:37Z

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cursor · 2026-02-22T23:54:40Z

PR Summary

Low Risk
Small, additive change confined to SQL string generation for a new expression variant, with targeted unit tests and no changes to existing variants’ behavior.

Overview
Adds support for PostgreSQL row constructors in the query expression AST by introducing Expression::Row(Vec<Expression>).

Transpile now renders this variant as ROW(e1, e2, ...) (including empty and single-element rows), and new unit tests assert correct SQL output and comma separation.

^{Written by Cursor Bugbot for commit cdb794e. This will update automatically on new commits. Configure here.}

TimDiekmann · 2026-02-22T23:54:48Z

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libs/@local/graph/postgres-store/src/store/postgres/query/expression/conditional.rs

augmentcode · 2026-02-22T23:56:46Z

🤖 Augment PR Summary

Summary: Adds PostgreSQL row constructor support to the query expression system.
Changes: Introduces Expression::Row(Vec<Expression>) and transpiles it to ROW(e1, e2, ...) syntax.

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Review completed. 1 suggestions posted.

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libs/@local/graph/postgres-store/src/store/postgres/query/expression/conditional.rs

codecov · 2026-02-23T00:00:33Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.58%. Comparing base (d2cf73a) to head (080512e).

Additional details and impacted files

@@                                          Coverage Diff                                          @@
##           t/be-417-include-binary-and-unary-operation-support-inside-of-select    #8470   +/-   ##
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  Files                                                                      1296     1296           
  Lines                                                                    130967   130967           
  Branches                                                                   5480     5480           
=====================================================================================================
  Hits                                                                      81961    81961           
  Misses                                                                    48096    48096           
  Partials                                                                    910      910

Flag	Coverage Δ
apps.hash-ai-worker-ts	`1.40% <ø> (ø)`
apps.hash-api	`0.00% <ø> (ø)`
local.hash-graph-sdk	`7.78% <ø> (ø)`
local.hash-isomorphic-utils	`0.00% <ø> (ø)`
rust.hash-graph-api	`2.86% <ø> (ø)`

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Cover empty, single-element, and multi-element cases to lock in comma separation and exact SQL rendering behavior.

libs/@local/graph/postgres-store/src/store/postgres/query/expression/conditional.rs

…ic expressions Extend the query builder with full SQL operator coverage: - BinaryOperator: arithmetic (+, -, *, /, %), bitwise (&, |), and JSON access (->, ->>) operators. JSON operators remain binary despite being syntactically chainable because chaining is left- associative traversal, not a commutative/associative operation like AND/OR/||. - UnaryOperator: negation (-) and bitwise NOT (~). - VariadicExpression: new expression type for n-ary operators (AND, OR, ||) replacing the ad-hoc All/Any variants on Expression and Function::ArrayConcat. - Remove Function::JsonDeleteKeys (replaced by BinaryOperator::Subtract) and Function::ArrayConcat (replaced by VariadicOperator::Concatenate).

- Add debug_assert in VariadicOperator::Concatenate to catch empty-list misuse early; update doc to use a proper # Panics section. - Add Expression::Grouped(Box<Self>) that transpiles to (expr), for explicit control over operator precedence. - Wrap the property-masking subtraction in Grouped so that subsequent JSON operators (->/->>) compose correctly. In PostgreSQL, -> has higher precedence than -, so without parens `col - keys -> 'f'` would parse as `col - (keys -> 'f')`.

cursor

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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cursor · 2026-02-24T09:48:28Z

libs/@local/graph/postgres-store/src/store/postgres/query/expression/conditional.rs

+                    expr.transpile(fmt)?;
+                }
+                fmt.write_char(')')
+            }


Empty row constructor emits invalid SQL

Low Severity

Expression::Row allows an empty Vec and transpiles it to ROW(). PostgreSQL row-constructor syntax expects at least one expression, so this branch can generate invalid SQL at runtime when an empty row is built.

Additional Locations (1)

libs/@local/graph/postgres-store/src/store/postgres/query/expression/conditional.rs#L769-L770

Add Expression::Row(Vec<Self>) variant that transpiles to ROW(e1, e2, ...) in PostgreSQL. This is the inverse of the existing RowExpansion and is required for converging different query paths into a single composite row value.

github-actions · 2026-02-25T10:24:29Z

Benchmark results

@rust/hash-graph-benches – Integrations

policy_resolution_large

Function	Value	Mean	Flame graphs
resolve_policies_for_actor	user: empty, selectivity: high, policies: 2002	$$28.3 \mathrm{ms} \pm 153 \mathrm{μs}\left({\color{gray}-2.070 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: low, policies: 1	$$3.36 \mathrm{ms} \pm 22.4 \mathrm{μs}\left({\color{gray}-0.871 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: medium, policies: 1001	$$13.5 \mathrm{ms} \pm 68.4 \mathrm{μs}\left({\color{gray}-2.964 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: high, policies: 3314	$$44.0 \mathrm{ms} \pm 325 \mathrm{μs}\left({\color{gray}-0.492 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: low, policies: 1	$$15.0 \mathrm{ms} \pm 93.3 \mathrm{μs}\left({\color{gray}3.46 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: medium, policies: 1526	$$24.3 \mathrm{ms} \pm 139 \mathrm{μs}\left({\color{gray}-0.084 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: high, policies: 2078	$$29.1 \mathrm{ms} \pm 175 \mathrm{μs}\left({\color{gray}-0.478 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: low, policies: 1	$$3.79 \mathrm{ms} \pm 17.3 \mathrm{μs}\left({\color{gray}-1.554 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: medium, policies: 1033	$$14.8 \mathrm{ms} \pm 104 \mathrm{μs}\left({\color{gray}-1.416 \mathrm{\%}}\right) $$	Flame Graph

policy_resolution_medium

Function	Value	Mean	Flame graphs
resolve_policies_for_actor	user: empty, selectivity: high, policies: 102	$$3.64 \mathrm{ms} \pm 18.5 \mathrm{μs}\left({\color{gray}-2.245 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: low, policies: 1	$$2.87 \mathrm{ms} \pm 13.6 \mathrm{μs}\left({\color{gray}-0.991 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: medium, policies: 51	$$3.21 \mathrm{ms} \pm 16.8 \mathrm{μs}\left({\color{gray}-1.265 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: high, policies: 269	$$5.04 \mathrm{ms} \pm 23.9 \mathrm{μs}\left({\color{gray}-3.378 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: low, policies: 1	$$3.42 \mathrm{ms} \pm 16.2 \mathrm{μs}\left({\color{gray}-1.025 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: medium, policies: 107	$$3.98 \mathrm{ms} \pm 19.3 \mathrm{μs}\left({\color{gray}-1.688 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: high, policies: 133	$$4.32 \mathrm{ms} \pm 29.1 \mathrm{μs}\left({\color{gray}0.266 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: low, policies: 1	$$3.33 \mathrm{ms} \pm 19.0 \mathrm{μs}\left({\color{gray}0.052 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: medium, policies: 63	$$4.01 \mathrm{ms} \pm 33.7 \mathrm{μs}\left({\color{gray}1.82 \mathrm{\%}}\right) $$	Flame Graph

policy_resolution_none

Function	Value	Mean	Flame graphs
resolve_policies_for_actor	user: empty, selectivity: high, policies: 2	$$2.66 \mathrm{ms} \pm 13.2 \mathrm{μs}\left({\color{gray}0.301 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: low, policies: 1	$$2.61 \mathrm{ms} \pm 11.8 \mathrm{μs}\left({\color{gray}0.754 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: medium, policies: 1	$$2.70 \mathrm{ms} \pm 12.2 \mathrm{μs}\left({\color{gray}-1.271 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: high, policies: 8	$$3.16 \mathrm{ms} \pm 22.9 \mathrm{μs}\left({\color{red}7.10 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: low, policies: 1	$$2.76 \mathrm{ms} \pm 13.2 \mathrm{μs}\left({\color{gray}-0.980 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: medium, policies: 3	$$3.08 \mathrm{ms} \pm 16.0 \mathrm{μs}\left({\color{gray}0.963 \mathrm{\%}}\right) $$	Flame Graph

policy_resolution_small

Function	Value	Mean	Flame graphs
resolve_policies_for_actor	user: empty, selectivity: high, policies: 52	$$2.99 \mathrm{ms} \pm 16.1 \mathrm{μs}\left({\color{gray}-0.000 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: low, policies: 1	$$2.68 \mathrm{ms} \pm 10.3 \mathrm{μs}\left({\color{gray}-1.301 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: medium, policies: 25	$$2.87 \mathrm{ms} \pm 15.9 \mathrm{μs}\left({\color{gray}0.698 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: high, policies: 94	$$3.40 \mathrm{ms} \pm 21.2 \mathrm{μs}\left({\color{gray}0.985 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: low, policies: 1	$$3.00 \mathrm{ms} \pm 20.2 \mathrm{μs}\left({\color{gray}0.358 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: medium, policies: 26	$$3.23 \mathrm{ms} \pm 19.9 \mathrm{μs}\left({\color{gray}1.44 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: high, policies: 66	$$3.34 \mathrm{ms} \pm 16.7 \mathrm{μs}\left({\color{gray}1.73 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: low, policies: 1	$$2.98 \mathrm{ms} \pm 18.8 \mathrm{μs}\left({\color{gray}1.68 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: medium, policies: 29	$$3.21 \mathrm{ms} \pm 15.9 \mathrm{μs}\left({\color{gray}1.84 \mathrm{\%}}\right) $$	Flame Graph

read_scaling_complete

Function	Value	Mean	Flame graphs
entity_by_id;one_depth	1 entities	$$40.5 \mathrm{ms} \pm 165 \mathrm{μs}\left({\color{gray}1.18 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;one_depth	10 entities	$$77.3 \mathrm{ms} \pm 315 \mathrm{μs}\left({\color{gray}-3.706 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;one_depth	25 entities	$$45.3 \mathrm{ms} \pm 186 \mathrm{μs}\left({\color{gray}-0.871 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;one_depth	5 entities	$$46.9 \mathrm{ms} \pm 218 \mathrm{μs}\left({\color{gray}-2.361 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;one_depth	50 entities	$$57.3 \mathrm{ms} \pm 404 \mathrm{μs}\left({\color{gray}-0.190 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	1 entities	$$42.6 \mathrm{ms} \pm 224 \mathrm{μs}\left({\color{gray}0.209 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	10 entities	$$423 \mathrm{ms} \pm 1.03 \mathrm{ms}\left({\color{gray}-1.050 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	25 entities	$$91.9 \mathrm{ms} \pm 472 \mathrm{μs}\left({\color{lightgreen}-8.088 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	5 entities	$$88.4 \mathrm{ms} \pm 409 \mathrm{μs}\left({\color{gray}0.677 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	50 entities	$$284 \mathrm{ms} \pm 821 \mathrm{μs}\left({\color{gray}-2.418 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	1 entities	$$15.3 \mathrm{ms} \pm 107 \mathrm{μs}\left({\color{gray}-2.655 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	10 entities	$$15.3 \mathrm{ms} \pm 81.9 \mathrm{μs}\left({\color{gray}-2.807 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	25 entities	$$15.5 \mathrm{ms} \pm 98.9 \mathrm{μs}\left({\color{gray}-4.692 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	5 entities	$$15.2 \mathrm{ms} \pm 80.4 \mathrm{μs}\left({\color{lightgreen}-5.066 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	50 entities	$$18.0 \mathrm{ms} \pm 95.4 \mathrm{μs}\left({\color{gray}-3.937 \mathrm{\%}}\right) $$	Flame Graph

read_scaling_linkless

Function	Value	Mean	Flame graphs
entity_by_id	1 entities	$$14.8 \mathrm{ms} \pm 66.5 \mathrm{μs}\left({\color{gray}-4.214 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	10 entities	$$15.1 \mathrm{ms} \pm 80.9 \mathrm{μs}\left({\color{gray}-3.464 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	100 entities	$$14.9 \mathrm{ms} \pm 81.6 \mathrm{μs}\left({\color{lightgreen}-5.512 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	1000 entities	$$15.5 \mathrm{ms} \pm 80.8 \mathrm{μs}\left({\color{lightgreen}-6.586 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	10000 entities	$$22.7 \mathrm{ms} \pm 159 \mathrm{μs}\left({\color{gray}-3.341 \mathrm{\%}}\right) $$	Flame Graph

representative_read_entity

Function	Value	Mean	Flame graphs
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/block/v/1`	$$31.5 \mathrm{ms} \pm 283 \mathrm{μs}\left({\color{lightgreen}-7.929 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/book/v/1`	$$30.2 \mathrm{ms} \pm 313 \mathrm{μs}\left({\color{lightgreen}-6.795 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/building/v/1`	$$30.2 \mathrm{ms} \pm 251 \mathrm{μs}\left({\color{lightgreen}-7.640 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/organization/v/1`	$$31.3 \mathrm{ms} \pm 290 \mathrm{μs}\left({\color{lightgreen}-5.484 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/page/v/2`	$$30.3 \mathrm{ms} \pm 213 \mathrm{μs}\left({\color{lightgreen}-8.622 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/person/v/1`	$$30.2 \mathrm{ms} \pm 275 \mathrm{μs}\left({\color{lightgreen}-8.961 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/playlist/v/1`	$$31.2 \mathrm{ms} \pm 263 \mathrm{μs}\left({\color{gray}0.184 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/song/v/1`	$$31.2 \mathrm{ms} \pm 326 \mathrm{μs}\left({\color{gray}-3.609 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/uk-address/v/1`	$$31.7 \mathrm{ms} \pm 243 \mathrm{μs}\left({\color{gray}-1.490 \mathrm{\%}}\right) $$	Flame Graph

representative_read_entity_type

Function	Value	Mean	Flame graphs
get_entity_type_by_id	Account ID: `bf5a9ef5-dc3b-43cf-a291-6210c0321eba`	$$8.27 \mathrm{ms} \pm 49.0 \mathrm{μs}\left({\color{gray}-2.873 \mathrm{\%}}\right) $$	Flame Graph

representative_read_multiple_entities

Function	Value	Mean	Flame graphs
entity_by_property	traversal_paths=0	0	$$90.5 \mathrm{ms} \pm 485 \mathrm{μs}\left({\color{gray}-3.271 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=255	1,resolve_depths=inherit:1;values:255;properties:255;links:127;link_dests:126;type:true	$$140 \mathrm{ms} \pm 460 \mathrm{μs}\left({\color{gray}-4.803 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:0;links:0;link_dests:0;type:false	$$97.2 \mathrm{ms} \pm 423 \mathrm{μs}\left({\color{gray}-2.604 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:0;links:1;link_dests:0;type:true	$$106 \mathrm{ms} \pm 490 \mathrm{μs}\left({\color{gray}-3.815 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:2;links:1;link_dests:0;type:true	$$117 \mathrm{ms} \pm 519 \mathrm{μs}\left({\color{gray}-0.365 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:2;properties:2;links:1;link_dests:0;type:true	$$123 \mathrm{ms} \pm 572 \mathrm{μs}\left({\color{gray}-1.418 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=0	0	$$87.6 \mathrm{ms} \pm 419 \mathrm{μs}\left({\color{gray}-2.441 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=255	1,resolve_depths=inherit:1;values:255;properties:255;links:127;link_dests:126;type:true	$$116 \mathrm{ms} \pm 487 \mathrm{μs}\left({\color{gray}-3.673 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:0;links:0;link_dests:0;type:false	$$94.5 \mathrm{ms} \pm 430 \mathrm{μs}\left({\color{gray}-3.870 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:0;links:1;link_dests:0;type:true	$$103 \mathrm{ms} \pm 488 \mathrm{μs}\left({\color{gray}-3.728 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:2;links:1;link_dests:0;type:true	$$105 \mathrm{ms} \pm 426 \mathrm{μs}\left({\color{gray}-3.593 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:2;properties:2;links:1;link_dests:0;type:true	$$106 \mathrm{ms} \pm 555 \mathrm{μs}\left({\color{gray}-2.424 \mathrm{\%}}\right) $$

scenarios

Function	Value	Mean	Flame graphs
full_test	query-limited	$$137 \mathrm{ms} \pm 604 \mathrm{μs}\left({\color{gray}0.551 \mathrm{\%}}\right) $$	Flame Graph
full_test	query-unlimited	$$138 \mathrm{ms} \pm 509 \mathrm{μs}\left({\color{gray}3.32 \mathrm{\%}}\right) $$	Flame Graph
linked_queries	query-limited	$$105 \mathrm{ms} \pm 649 \mathrm{μs}\left({\color{red}39.1 \mathrm{\%}}\right) $$	Flame Graph
linked_queries	query-unlimited	$$584 \mathrm{ms} \pm 3.05 \mathrm{ms}\left({\color{gray}0.373 \mathrm{\%}}\right) $$	Flame Graph

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BE-418: Add tests for ROW constructor transpilation

18da1fb

Cover empty, single-element, and multi-element cases to lock in comma separation and exact SQL rendering behavior.

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TimDiekmann force-pushed the graphite-base/8470 branch from d2ec8c0 to d2cf73a Compare February 24, 2026 09:45

TimDiekmann force-pushed the t/be-418-implement-row-constructor-expressions branch from 2c63027 to 0434d89 Compare February 24, 2026 09:45

TimDiekmann changed the base branch from graphite-base/8470 to t/be-417-include-binary-and-unary-operation-support-inside-of-select February 24, 2026 09:45

Remove old constant expression from ROW expression test

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TimDiekmann added 2 commits February 25, 2026 10:06

Update conditional.rs

4c102ed

BE-418: Add ROW constructor expression

c4881b8

Add Expression::Row(Vec<Self>) variant that transpiles to ROW(e1, e2, ...) in PostgreSQL. This is the inverse of the existing RowExpansion and is required for converging different query paths into a single composite row value.

TimDiekmann force-pushed the t/be-418-implement-row-constructor-expressions branch from 080512e to cdb794e Compare February 25, 2026 09:07

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Base automatically changed from t/be-417-include-binary-and-unary-operation-support-inside-of-select to main February 25, 2026 14:32

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TimDiekmann commented Feb 22, 2026

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Empty row constructor emits invalid SQL

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