Add PostgreSQL jsonpath type and jsonb_path_* functions #4918
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This commit implements the following PostgreSQL JSON path functions: - jsonb_path_exists (with variants for vars, silent) - jsonb_path_match (with variants for vars, silent) - jsonb_path_query_array (with variants for vars, silent) - jsonb_path_query_first (with variants for vars, silent) Also adds timezone-aware variants (_tz) for all the above functions. Closes: diesel-rs#4216 (partial) Signed-off-by: majiayu000 <[email protected]>
Add all jsonb_path_* function types to the list of shadowed types in make_proxy_mod macro to prevent duplicate re-export errors when both helper_types_proxy and expression_dsl_proxy glob-import these types. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <[email protected]>
weiznich
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Jan 16, 2026
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Thanks for submitting this PR and sorry for taking that long to have at least an initial look at the change.
Overall this addition looks good to me. I still want to verify the null value handling on the newly added functions and see if there is a reasonable set of tests there. Hopefully I get that done next week.
Otherwise the tests still seem to fail with a failure related to this change. Would you mind having a look at that? Do you need help there?
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Summary
This PR implements PostgreSQL JSON path query functions as part of #4216:
JsonpathSQL type: Added support for PostgreSQL'sjsonpathtype with OID 4072jsonb_path_exists(with_with_varsand_with_vars_and_silentvariants)jsonb_path_match(with_with_varsand_with_vars_and_silentvariants)jsonb_path_query_array(with_with_varsand_with_vars_and_silentvariants)jsonb_path_query_first(with_with_varsand_with_vars_and_silentvariants)_tzvariants for the above functionsEach function includes:
#[auto_type]test coverageTest plan
cargo check -p diesel --features "postgres serde_json"cargo fmt --all -- --check#[auto_type]tests for all new functionsRelated issues
Partially addresses #4216