---
title: "GQL 1.0 profile"
description: "The exact GQL read and PostgreSQL-backed write capabilities supported by pgGraph 1.0."
---

{/* Generated from release/v1-gql-profile.json; do not edit by hand. */}

pgGraph 1.0 implements the documented subset below. It does not claim full ISO GQL,
full openCypher, or SQL/PGQ conformance. Every supported GQL write updates its mapped
PostgreSQL tables first.

| Capability ID | Profile | Positive executable evidence |
|---|---|---|
| `match` | read | `gql_single_directed_match_matches_traverse_fixture` |
| `optional_match_single_relationship` | read | `gql_optional_match_matches_left_outer_sql` |
| `where_node_properties` | read | `gql_optional_match_filters_orders_and_paginates_null_rows` |
| `with` | read | `gql_with_projection_scope_aliases_and_shadows` |
| `return_projection` | read | `gql_defaults_to_hydrated_nodes_and_projects_ids_explicitly` |
| `distinct` | read | `gql_distinct_matches_sql_distinct_counts` |
| `order_limit_offset` | read | `gql_optional_match_filters_orders_and_paginates_null_rows` |
| `aggregates` | read | `gql_aggregates_match_sql_grouping_and_numeric_results` |
| `bounded_paths_and_path_functions` | read | `gql_path_values_and_functions_have_stable_shape` |
| `mapped_single_node_create` | write | `gql_create_node_inserts_mapped_row_and_records_delta` |
| `mapped_single_relationship_create` | write | `gql_create_relationship_inserts_edge_row_and_records_delta` |
| `mapped_single_node_set_remove` | write | `gql_set_property_updates_source_row_and_filter_index`, `gql_remove_typed_property_sets_source_column_null_idempotently` |
| `mapped_single_relationship_delete` | write | `gql_delete_edge_removes_source_row_and_tombstones_neighbors` |
| `mapped_single_node_detach_delete` | write | `gql_detach_delete_removes_incident_edges_before_node` |
| `mapped_single_node_merge` | write | `gql_merge_node_inserts_then_updates_mapped_row` |

Each listed capability is covered by parser, planning, execution, error, access-control,
resource, and documentation tests. Write capabilities also include transaction and
rollback tests that verify PostgreSQL tables are updated first. The release checker
verifies every referenced implementation marker and test.

`release/v1-gql-unsupported.json` lists unsupported and compatibility syntax. These
examples are rejected before execution with the documented SQLSTATE and guidance;
pgGraph does not interpret them as supported syntax.