Task: Support schema importer

[roneli]

This pull request introduces a new CLI command for importing GraphQL schemas from PostgreSQL databases, improves directive handling consistency throughout the codebase, and adds comprehensive examples and test schemas for JSON field support. It also includes minor adjustments to existing commands to support new parameters and improves maintainability by centralizing directive name usage.

New CLI command and schema import functionality:

• Added a new import command (importCmd in cmd/import.go) that allows users to introspect a PostgreSQL database and generate a GraphQL schema file, with options for schema name, tables, output file, and query/filter generation. This command is now registered in the CLI root. [1] [2]

Directive handling improvements:

• Replaced hardcoded directive names throughout the SQL builder and related code with constants from the schema package for directives such as relation, typename, table, and isInterfaceFilter, improving maintainability and reducing risk of typos. [1] [2] [3] [4] [5] [6]

Schema and example enhancements:

• Added a new example GraphQL schema (examples/json/graph/schema.graphql) and a test schema (pkg/execution/builders/sql/testdata/schema_json.graphql) that demonstrate support for typed and dynamic JSON fields, including filter input types and relevant directives. [1] [2]

Command improvements:

• Updated the generate and init commands to accept an additional parameter for specifying the output server file name, improving flexibility in code generation. [1] [2]

Documentation and agent configuration:

• Introduced a new .claude/agents/golang-reviewer.md file describing an agent for reviewing Go code according to best practices and major Go style guides, including detailed review methodology and output format.

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Project	Deployment	Review	Updated (UTC)
fastgql-by75	Ready	Preview, Comment	Jan 10, 2026 2:08pm