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P2-T100a: full Spark 4.2 golden run, frozen baseline and ratchet - #154
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TRY_CAST('1.23' AS INT) is NULL in Spark 4.2 (try_cast.sql): try_cast
uses the exact (toLongExact) parser, so a fraction is malformed rather
than dropped. The kernel used the legacy parser for Try mode.
Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
Spark's checkLimitLikeClause raises INVALID_LIMIT_LIKE_EXPRESSION.IS_NEGATIVE and .IS_NULL for a foldable count; LIMIT -1 used to reach the physical planner as INTERNAL_ERROR (limit.sql). The checks live in their own non-inlined function so the resolver's recursive frame does not grow. Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
…tchet (P2-T100a) - golden::session_engine: an Engine over krishiv-session (fresh session per run with the file's configs and fixture tables; SET/RESET mirrored into the session; rows rendered by golden::cell from the result's Spark types; sortedness from the analyzed plan; per-statement time limit). - The runner records each statement's outcome and why it failed. - tests/spark-golden/known-failures.json: every statement of the Spark 4.2 suite that does not pass, with a category (unsupported feature with its plan task, divergence with ADR 0023, or bug with its owner) and the classification rules (golden::classify) used to seed new entries. - golden_ratchet test: the full suite must fail exactly the listed statements; a new failure fails CI and a listed statement that passes must be removed. golden-report --ratchet check|update. - The file-level exclusion manifest is frozen (no exclusions). First full run: parse 14025/18827, negative 629/3857, result 966/15363. Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
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| Layer / File(s) | Summary |
|---|---|
Strict parsing and cast expectations crates/krishiv-kernels/src/cast.rs, crates/krishiv-kernels/tests/casts.rs |
Non-legacy string-to-integral casts use strict parsing. Tests check that fractional inputs return NULL in Try mode and whitespace-padded integers still parse. |
LIMIT analysis
| Layer / File(s) | Summary |
|---|---|
LIMIT validation crates/krishiv-plan/src/analyzer/resolve.rs, crates/krishiv-sql/tests/analyzer.rs |
The LIMIT branch uses a helper that rejects non-INT expressions and foldable null or negative counts. Tests cover negative and null limits and confirm that zero succeeds. |
Golden-test execution and ratchet
| Layer / File(s) | Summary |
|---|---|
Session execution and statement diagnostics crates/krishiv-testkit/Cargo.toml, crates/krishiv-testkit/src/golden/run.rs, crates/krishiv-testkit/src/golden/session_engine.rs |
The session engine runs statements with fixtures, configuration handling, and timeouts. The runner records original statement indices and failure details, including parse, execution, and result mismatches. |
Failure classification and baseline crates/krishiv-testkit/src/golden/classify.rs, crates/krishiv-testkit/src/golden/known_failures.rs, tests/spark-golden/known-failures.json, tests/spark-golden/exclusions.json |
Classification rules match failures against configured conditions. The versioned baseline validates, checks, and updates statement exclusions; the Spark manifest records categories, rules, and case indices, and the exclusions manifest is frozen. |
CLI reporting and ratchet integration crates/krishiv-testkit/src/golden/mod.rs, crates/krishiv-testkit/src/golden/report.rs, crates/krishiv-testkit/src/bin/golden-report.rs, crates/krishiv-testkit/tests/golden_*, crates/krishiv-testkit/CLAUDE.md, xtask/src/main.rs |
The CLI adds session-engine selection, failed-case JSON output, and baseline check or update modes. Tests cover the options and frozen-baseline run; usage text and documentation describe the commands and ratchet behavior. |
Priority:
Estimated code review effort: 4 (Complex) | ~60 minutes
Merge Risk: 
4fd34
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The cast and LIMIT changes are mostly sound, but LIMIT validation still accepts negative counts written as arithmetic expressions. The golden ratchet can also fail on slow CI runners and mis-handle RESET. Address these before relying on the frozen baseline as a CI gate.
Security architecture risk: 
4fd34
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The new execution path is confined to local test tooling and CI. It can read files accessible to the running process, but the inspected default path rejects write commands, remote storage schemes, and credential-bearing paths. No introduced production-facing security issue was established; CI filesystem isolation remains unverified.
Retained concerns
No architecture-level concerns identified.Security review details
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Security Blast Radius
- inferred — The established exposure is local file-read authority under the CLI or CI process identity. The inspected consumers use repository-local golden inputs; no production tenant boundary or privilege elevation was established.
Trust Boundaries and Controls
- observed — The inspected default SQL dispatcher rejects non-query commands, including SQL writes. File resolution rejects non-file schemes and credential-bearing paths, limiting the new SQL execution path without making it a general-purpose sandbox.
Hardening Proposals
- proposed — If the runner is later used for externally supplied SQL, execute it with a restricted filesystem view and without sensitive credentials. The current local-file authority should not be treated as an isolation boundary.
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Pre-merge checks: 
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Check name Status Explanation Resolution Description check The description provides a detailed change summary and reports test results, coverage, and run metrics. However, it omits the required checklist and does not fully document task/spec/ADR links, exact … Add the required template sections and complete every applicable checklist item. Include task, specification, and ADR references; exact test commands with result lines; DCO, licensing, API, error-handling, Spark-compatibility, and distribut… Docstring Coverage Docstring coverage is 68.22% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 107 functions across 14 files. (4 skipped… Write docstrings for the functions missing them to satisfy the coverage threshold. -
Check name Status Explanation Title check The title clearly identifies the main changes: the full Spark 4.2 golden run, frozen baseline, and CI ratchet. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request.
Full details: Description check
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Explanation
The description provides a detailed change summary and reports test results, coverage, and run metrics. However, it omits the required checklist and does not fully document task/spec/ADR links, exact test commands with result lines, new dependency justification, or performance review.
Resolution
Add the required template sections and complete every applicable checklist item. Include task, specification, and ADR references; exact test commands with result lines; DCO, licensing, API, error-handling, Spark-compatibility, and distributed-readiness confirmations; ADR 0028 dependency details for krishiv-session; and the ADR 0034 performance review or explicit not-applicable statements.
Full details: Docstring Coverage
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Explanation
Docstring coverage is 68.22% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 107 functions across 14 files. (4 skipped: 4 unsupported.)
Resolution
Write docstrings for the functions missing them to satisfy the coverage threshold.
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Actionable comments posted: 5
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Inline comments:
Review comments at @crates/krishiv-plan/src/analyzer/resolve.rs:
- Line 369: Update fold::constant, used by check_limit, to fold supported
foldable operators such as resolved Builtin::Subtract expressions before LIMIT
validation; ensure expressions like LIMIT 1 - 2 produce a constant value so the
existing NULL and negative-count checks can reject them.
- Line 369: Update check_limit to use a foldability check alongside
fold::constant, returning INVALID_LIMIT_LIKE_EXPRESSION.IS_UNFOLDABLE only when
the bound expression is non-foldable; do not treat every None from constant
evaluation as non-foldable. Add the corresponding Spark error definition before
referencing it, and preserve the existing NULL and negative-value checks.
Review comments at @crates/krishiv-sql/tests/analyzer.rs:
- Line 467: Update the zero-LIMIT assertion around analyze to inspect the
returned AnalyzedPlan, match its resolved PlanNode::Limit, and verify that the
limit expression is the zero literal instead of checking only that analysis
succeeds.
Review comments at @crates/krishiv-testkit/src/golden/session_engine.rs:
- Around line 136-165: Update apply_set’s RESET handling to preserve the
pre-reset configuration and unset its keys from the session on bare RESET,
including keys absent from base. For RESET key, use case-insensitive matching
when looking up base entries in both self.conf and the session so the base value
is restored regardless of key casing.
- Around line 179-194: Update SessionEngine::block_on so a timeout is reported
as a harness failure rather than returned as a statement error that
KnownFailures compares against the frozen baseline. Preserve the existing
handling of successful results and ordinary KrishivError values.
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- Repository: KrishivAI/krishiv-engine
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⛔ Files ignored due to path filters: 1
Cargo.lockis excluded by!**/*.lock,!**/Cargo.lock
📒 Files selected for processing: 18
crates/krishiv-kernels/src/cast.rscrates/krishiv-kernels/tests/casts.rscrates/krishiv-plan/src/analyzer/resolve.rscrates/krishiv-sql/tests/analyzer.rscrates/krishiv-testkit/CLAUDE.mdcrates/krishiv-testkit/Cargo.tomlcrates/krishiv-testkit/src/bin/golden-report.rscrates/krishiv-testkit/src/golden/classify.rscrates/krishiv-testkit/src/golden/known_failures.rscrates/krishiv-testkit/src/golden/mod.rscrates/krishiv-testkit/src/golden/report.rscrates/krishiv-testkit/src/golden/run.rscrates/krishiv-testkit/src/golden/session_engine.rscrates/krishiv-testkit/tests/golden_ratchet.rscrates/krishiv-testkit/tests/golden_report.rstests/spark-golden/exclusions.jsontests/spark-golden/known-failures.jsonxtask/src/main.rs
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Merging this PR will not alter performance1 warning
Comparing 
Footnotes
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Signed-off-by: gopal tathe <44522021+techgopal@users.noreply.github.com>
Bare RESET now unsets every key set earlier in the session (it left SET keys behind), and RESET key matches base keys case-insensitively, as the session does; a test fails without the fix. The LIMIT 0 analyzer test now asserts the resolved Limit holds the literal 0. Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
…ep golden timeouts out of the ratchet Signed-off-by: gopal tathe <44522021+techgopal@users.noreply.github.com>
Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
Main now runs SET through Session::sql, so the session-engine test asserts the command succeeds and reaches the session's conf instead of a parse error. Re-record the frozen baseline: 2903 statements main fixed leave the list; cte#24 (an unused CTE over a missing relation no longer raises TABLE_OR_VIEW_NOT_FOUND) joins the analyzer bug category, and two statements that now depend on SET handling move category. Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
Main's analyzer folder (#143) supersedes this branch's LIMIT-count folding: keep main's fold.rs and limit checks and its regexp/ntile expectations; this branch's LIMIT analyzer tests pass on it. Two more statements now pass and leave the frozen baseline. Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
…ork (421 statements now pass) Signed-off-by: techysneha14 <343708768+shehatathe@users.noreply.github.com>
P2-T100a (Tier O): the first full run of the vendored Spark 4.2.0
SQLQueryTestSuitethrough the engine, the frozen statement-level baseline, and a CI ratchet over it.What changed
golden::session_engine: anEngineoverkrishiv-session. Each run of a file gets a fresh session with the file's configs and fixture tables.SET/RESETare mirrored into the session config, then sent toSession::sqllike any other statement, so they are scored on the session's own answer. Rows are rendered bygolden::cellusing the result's Spark types; sortedness comes from the analyzed plan; each statement has a time limit. The harness adds no SQL support of its own.tests/spark-golden/known-failures.json: lists every statement that does not pass, each with a category. A category is one of: an unsupported feature (with its plan task), a known divergence (ADR 0023), or a bug (with its owner). The file also holds the classification rules (golden::classify) that seed new entries.golden_ratchettest runs the full suite in normal CI (~90 s debug, ~70 MB RSS). A statement that newly fails fails CI. A listed statement that now passes must be removed. To refresh the list:golden-report --engine session --ratchet update. To check it:--ratchet check.tests/spark-golden/exclusions.jsonis frozen with no file-level exclusions. Every file runs.TRY_CAST('1.23' AS INT)is now NULL (try_cast uses ANSI parsing).LIMIT -1/LIMIT CAST(NULL AS INT)now raiseINVALID_LIMIT_LIKE_EXPRESSION.IS_NEGATIVE/.IS_NULLinstead ofINTERNAL_ERROR.Numbers (Spark 4.2.0, JDK 21 results, 349 files)
17,625 statements are listed. Most fall in two categories:
The rest are 106 auto-generated column names, 29 ignored legacy configs, 27 conditional functions not bound in physical plans, and 5 other analyzer/datetime bugs. These are all bugs with owners.
Checks
cargo nexteston testkit, plan, sql, kernels, session and exec all pass.clippy --all-targets -D warningsandcargo doc -D warningson the touched crates pass.xtask layering: OK.golden_ratchetexercise.pr-size: about 2,500 counted lines. The baseline is undertests/spark-golden/and is allowlisted.