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Summary

This PR implements a comprehensive documentation structure following the Diátaxis framework, providing clear, purposeful documentation organized by user needs.

Type of change

  • Bug fix
  • New feature
  • Breaking change
  • Documentation

Changes Made

Documentation Structure

  • Created 4-quadrant Diátaxis documentation structure: Tutorials, How-To Guides, Reference, and Explanation
  • Added templates for each documentation type with clear guidelines and metadata headers
  • Enhanced existing documentation to follow Diátaxis principles

Content Created

Tutorials (Learning-oriented)

  • Getting Started with Term: Comprehensive hands-on tutorial introducing core concepts through practical validation exercises

How-To Guides (Task-oriented)

  • Use Analyzers for Data Profiling: Complete guide for profiling datasets with examples and variations
  • Migrate from Deequ to Term: Detailed migration guide with API mapping and code comparisons

Reference (Information-oriented)

  • ValidationSuite API Reference: Complete technical specification with all methods, parameters, and examples

Explanation (Understanding-oriented)

  • Enhanced Architecture Documentation: Added design rationale, comparisons with other systems, and trade-off discussions

Example Projects

  • Basic Validation Example: Simple customer data validation with working code
  • Production Pipeline Example: Real-world scenario with monitoring, alerting, and incremental processing

Testing

  • Documentation examples are complete and runnable
  • Templates follow Diátaxis principles
  • Code formatting passes ()
  • Clippy passes ()
  • Documentation builds ()

Checklist

  • Tests pass locally (
    running 470 tests
    test analyzers::advanced::correlation::tests::test_compute_ranks ... ok
    test analyzers::advanced::kll_sketch::tests::test_kll_sketch_empty ... ok
    test analyzers::advanced::kll_sketch::tests::test_kll_sketch_error_bounds ... ok
    test analyzers::advanced::kll_sketch::tests::test_compactor_operations ... ok
    test analyzers::advanced::kll_sketch::tests::test_kll_sketch_nan_handling ... ok
    test analyzers::advanced::kll_sketch::tests::test_kll_sketch_single_value ... ok
    test analyzers::advanced::mutual_information::tests::test_state_merge ... ok
    test analyzers::advanced::tests::test_analyzer_state_merging ... ok
    test analyzers::advanced::kll_sketch::tests::test_kll_sketch_merge ... ok
    test analyzers::advanced::kll_sketch::tests::test_kll_sketch_basic ... FAILED
    test analyzers::advanced::tests::test_compliance_analyzer_sql_injection ... ok
    test analyzers::advanced::tests::test_approx_count_distinct_analyzer ... ok
    test analyzers::advanced::tests::test_compliance_analyzer ... ok
    test analyzers::advanced::correlation::tests::test_covariance ... ok
    test analyzers::advanced::correlation::tests::test_pearson_correlation_perfect ... ok
    test analyzers::anomaly::detector::tests::test_in_memory_repository ... ok
    test analyzers::anomaly::detector::tests::test_z_score_detector ... ok
    test analyzers::anomaly::detector::tests::test_in_memory_repository_memory_limits ... ok
    test analyzers::anomaly::detector::tests::test_relative_rate_of_change_detector ... ok
    test analyzers::anomaly::strategy::tests::test_asymmetric_thresholds ... ok
    test analyzers::anomaly::strategy::tests::test_insufficient_history ... ok
    test analyzers::anomaly::strategy::tests::test_invalid_rate_validation ... ok
    test analyzers::anomaly::strategy::tests::test_near_zero_baseline ... ok
    test analyzers::anomaly::strategy::tests::test_no_limit_on_increases ... ok
    test analyzers::anomaly::strategy::tests::test_relative_rate_of_change_anomaly_decrease ... ok
    test analyzers::anomaly::strategy::tests::test_relative_rate_of_change_anomaly_increase ... ok
    test analyzers::anomaly::strategy::tests::test_relative_rate_of_change_normal ... ok
    test analyzers::anomaly::strategy::tests::test_very_small_changes ... ok
    test analyzers::anomaly::strategy::tests::test_zero_baseline_edge_case ... ok
    test analyzers::basic::tests::completeness_tests::test_completeness_state_merge ... ok
    test analyzers::advanced::tests::test_standard_deviation_analyzer ... ok
    test analyzers::advanced::tests::test_data_type_analyzer ... ok
    test analyzers::basic::tests::mean_tests::test_mean_state_merge ... ok
    test analyzers::basic::tests::distinctness_tests::test_distinctness_analyzer ... ok
    test analyzers::basic::tests::mean_tests::test_mean_analyzer ... ok
    test analyzers::advanced::correlation::tests::test_spearman_correlation ... ok
    test analyzers::advanced::tests::test_entropy_analyzer_uniform_distribution ... ok
    test analyzers::basic::tests::min_max_tests::test_min_max_state_merge ... ok
    test analyzers::basic::tests::size_tests::test_size_state_merge ... ok
    test analyzers::basic::tests::integration_tests::test_all_analyzers_null_only_data ... ok
    test analyzers::advanced::mutual_information::tests::test_mutual_information_independent ... ok
    test analyzers::advanced::tests::test_histogram_analyzer ... ok
    test analyzers::basic::tests::integration_tests::test_all_analyzers_empty_data ... ok
    test analyzers::advanced::mutual_information::tests::test_mutual_information_dependent ... ok
    test analyzers::basic::tests::sum_tests::test_sum_state_merge ... ok
    test analyzers::basic::tests::min_max_tests::test_max_analyzer ... ok
    test analyzers::advanced::tests::test_entropy_analyzer ... ok
    test analyzers::basic::tests::min_max_tests::test_min_analyzer ... ok
    test analyzers::basic::tests::size_tests::test_size_analyzer ... ok
    test analyzers::advanced::mutual_information::tests::test_mutual_information_categorical ... ok
    test analyzers::basic::tests::completeness_tests::test_completeness_analyzer ... ok
    test analyzers::advanced::tests::test_empty_data_handling ... ok
    test analyzers::basic::tests::sum_tests::test_sum_analyzer ... ok
    test analyzers::incremental::tests::test_analyzer_count ... ok
    test analyzers::incremental::tests::state_store_tests::test_filesystem_state_store_nonexistent ... ok
    test analyzers::incremental::tests::state_store_tests::test_filesystem_state_store_basic ... ok
    test analyzers::inference::tests::test_analyze_samples_all_nulls ... ok
    test analyzers::inference::tests::test_analyze_samples_mixed_types ... ok
    test analyzers::inference::tests::test_analyze_samples_with_nulls ... ok
    test analyzers::inference::tests::test_confidence_calculation ... ok
    test analyzers::inference::tests::test_boolean_representations ... ok
    test analyzers::incremental::tests::state_store_tests::test_filesystem_state_store_delete ... ok
    test analyzers::incremental::tests::test_error_handling_with_config ... ok
    test analyzers::incremental::tests::test_empty_state_handling ... ok
    test analyzers::incremental::tests::test_incremental_runner_single_partition ... ok
    test analyzers::inference::tests::test_date_format_detection ... ok
    test analyzers::inference::tests::test_inferred_data_type_methods ... ok
    test analyzers::inference::tests::test_determine_type_all_nulls ... ok
    test analyzers::incremental::tests::state_store_tests::test_filesystem_state_store_batch_load ... ok
    test analyzers::inference::tests::test_determine_type_boolean_detection ... ok
    test analyzers::inference::tests::test_type_stats_creation ... ok
    test analyzers::incremental::tests::test_incremental_update ... ok
    test analyzers::inference::tests::test_determine_type_categorical_vs_text ... ok
    test analyzers::profiler::tests::test_data_type_detection ... ok
    test analyzers::profiler::tests::test_profiler_config_builder ... ok
    test analyzers::profiler::tests::test_progress_callback ... ok
    test analyzers::inference::tests::test_determine_type_decimal_precision ... ok
    test analyzers::runner::tests::test_error_handling ... ok
    test analyzers::inference::tests::test_determine_type_mixed_types ... ok
    test analyzers::incremental::tests::test_incremental_runner_merge_states ... ok
    test analyzers::runner::tests::test_fail_fast ... ok
    test analyzers::runner::tests::test_analysis_runner_basic ... ok
    test analyzers::inference::tests::test_inference_engine_builder ... ok
    test analyzers::schema_analyzer::tests::test_foreign_key_detection ... ok
    test analyzers::inference::tests::test_numeric_edge_cases ... ok
    test analyzers::schema_analyzer::tests::test_temporal_column_detection ... ok
    test analyzers::suggestions::tests::test_cardinality_rule_categorical ... ok
    test analyzers::schema_analyzer::tests::test_amount_column_detection ... ok
    test analyzers::suggestions::tests::test_completeness_rule_high_completeness ... ok
    test analyzers::suggestions::tests::test_completeness_rule_low_completeness ... ok
    test analyzers::suggestions::tests::test_completeness_rule_medium_completeness ... ok
    test analyzers::schema_analyzer::tests::test_temporal_ordering ... ok
    test analyzers::suggestions::tests::test_data_type_rule_mixed ... ok
    test analyzers::suggestions::tests::test_pattern_rule_email ... ok
    test analyzers::inference::tests::test_determine_type_single_value ... ok
    test analyzers::suggestions::tests::test_range_rule_numeric ... ok
    test analyzers::suggestions::tests::test_suggestion_batch_processing ... ok
    test analyzers::runner::tests::test_analysis_runner_multiple_analyzers ... ok
    test analyzers::suggestions::tests::test_suggestion_engine_confidence_filtering ... ok
    test analyzers::suggestions::tests::test_suggestion_engine_max_suggestions ... ok
    test analyzers::suggestions::tests::test_suggestion_engine_with_all_rules ... ok
    test analyzers::suggestions::tests::test_uniqueness_rule_high_uniqueness ... ok
    test analyzers::suggestions::tests::test_uniqueness_rule_id_column ... ok
    test analyzers::tests::context_tests::test_analyzer_context_basic ... ok
    test analyzers::tests::context_tests::test_analyzer_context_errors ... ok
    test analyzers::runner::tests::test_progress_callback ... ok
    test analyzers::tests::context_tests::test_analyzer_context_merge ... ok
    test analyzers::tests::context_tests::test_analyzer_context_summary ... ok
    test analyzers::tests::distribution_tests::test_histogram_bucket ... ok
    test analyzers::inference::tests::test_type_pattern_matching ... ok
    test analyzers::tests::distribution_tests::test_metric_distribution ... ok
    test analyzers::incremental::tests::test_partition_management ... ok
    test analyzers::tests::metric_value_tests::test_metric_value_conversions ... ok
    test analyzers::tests::metric_value_tests::test_metric_value_display ... ok
    test analyzers::tests::metric_value_tests::test_metric_value_from_primitives ... ok
    test analyzers::tests::metric_value_tests::test_metric_value_numeric_checks ... ok
    test analyzers::inference::tests::test_empty_samples ... ok
    test analyzers::tests::serialization_tests::test_analyzer_context_serialization ... ok
    test analyzers::tests::serialization_tests::test_metric_value_serialization ... ok
    test analyzers::tests::serialization_tests::test_test_size_state_serialization ... ok
    test analyzers::tests::trait_bound_tests::test_types_are_send_sync ... ok
    test constraints::approx_count_distinct::tests::test_metadata ... ok
    test constraints::assertion::tests::test_between ... ok
    test constraints::assertion::tests::test_description ... ok
    test analyzers::inference::tests::test_whitespace_handling ... ok
    test constraints::assertion::tests::test_equals ... ok
    test constraints::assertion::tests::test_greater_than ... ok
    test constraints::approx_count_distinct::tests::test_all_null_values ... ok
    test constraints::approx_count_distinct::tests::test_constraint_failure ... ok
    test constraints::approx_count_distinct::tests::test_empty_data ... ok
    test constraints::assertion::tests::test_not_equals ... ok
    test constraints::approx_count_distinct::tests::test_high_cardinality ... ok
    test constraints::approx_count_distinct::tests::test_string_column ... ok
    test constraints::approx_count_distinct::tests::test_with_nulls ... ok
    test constraints::column_count::tests::test_metadata ... ok
    test constraints::column_count::tests::test_column_count_between ... ok
    test constraints::column_count::tests::test_column_count_greater_than ... ok
    test constraints::column_count::tests::test_column_count_less_than ... ok
    test constraints::approx_count_distinct::tests::test_accuracy_comparison ... ok
    test constraints::approx_count_distinct::tests::test_low_cardinality ... ok
    test constraints::completeness::tests::test_metadata ... ok
    test constraints::column_count::tests::test_column_count_equals ... ok
    test constraints::column_count::tests::test_large_column_count ... ok
    test constraints::column_count::tests::test_missing_table ... ok
    test constraints::column_count::tests::test_single_column_dataset ... ok
    test constraints::completeness::tests::test_invalid_threshold - should panic ... ok
    test constraints::completeness::tests::test_empty_data ... ok
    test analyzers::incremental::tests::test_batch_processing ... ok
    test constraints::correlation::tests::test_invalid_max_correlation ... ok
    test constraints::correlation::tests::test_multi_column_too_few ... ok
    test constraints::correlation::tests::test_multi_column_validation ... ok
    test constraints::completeness::tests::test_single_column_below_threshold ... ok
    test constraints::completeness::tests::test_single_column_with_threshold ... ok
    test constraints::cross_table_sum::tests::test_constraint_name ... ok
    test constraints::cross_table_sum::tests::test_constraint_configuration ... ok
    test constraints::correlation::tests::test_correlation_range ... ok
    test constraints::completeness::tests::test_multiple_columns_all_operator ... ok
    test constraints::cross_table_sum::tests::test_parse_qualified_column ... ok
    test constraints::completeness::tests::test_single_column_complete ... ok
    test constraints::correlation::tests::test_pearson_correlation ... ok
    test constraints::completeness::tests::test_multiple_columns_any_operator ... ok
    test constraints::completeness::tests::test_multiple_columns_all_operator_failure ... ok
    test constraints::completeness::tests::test_multiple_columns_exactly_operator ... ok
    test constraints::correlation::tests::test_independence_check ... ok
    test constraints::completeness::tests::test_multiple_columns_at_least_operator ... ok
    test analyzers::runner::tests::test_many_analyzers ... ok
    test constraints::custom_sql::tests::test_sql_validation_case_insensitive ... ok
    test constraints::custom_sql::tests::test_sql_validation_accepts_safe_expressions ... ok
    test constraints::custom_sql::tests::test_new_returns_error_on_dangerous_sql_new ... ok
    test constraints::custom_sql::tests::test_sql_validation_word_boundaries ... ok
    test constraints::custom_sql::tests::test_sql_validation_rejects_dangerous_operations ... ok
    test constraints::custom_sql::tests::test_try_new_returns_error_on_dangerous_sql ... ok
    test constraints::cross_table_sum::tests::test_cross_table_sum_no_grouping ... ok
    test constraints::datatype::tests::test_specific_type_validation ... ok
    test constraints::foreign_key::tests::test_constraint_configuration ... ok
    test constraints::foreign_key::tests::test_constraint_name ... ok
    test constraints::datatype::tests::test_range_validation ... ok
    test constraints::custom_sql::tests::test_custom_sql_invalid_expression ... ok
    test constraints::custom_sql::tests::test_custom_sql_with_nulls_expression ... ok
    test constraints::custom_sql::tests::test_custom_sql_partial_satisfy ... ok
    test constraints::custom_sql::tests::test_custom_sql_with_nulls ... ok
    test constraints::foreign_key::tests::test_sql_generation ... ok
    test constraints::foreign_key::tests::test_parse_qualified_column ... ok
    test constraints::foreign_key::tests::test_sql_generation_with_nulls_allowed ... ok
    test constraints::format::tests::test_all_format_types_have_patterns ... ok
    test constraints::datatype::tests::test_string_validation ... ok
    test constraints::datatype::tests::test_non_negative_validation ... ok
    test constraints::custom_sql::tests::test_custom_sql_complex_expression ... ok
    test constraints::custom_sql::tests::test_custom_sql_all_satisfy ... ok
    test constraints::cross_table_sum::tests::test_cross_table_sum_violation ... ok
    test constraints::format::tests::test_format_options_convenience_methods ... ok
    test constraints::foreign_key::tests::test_foreign_key_constraint_success ... ok
    test constraints::foreign_key::tests::test_foreign_key_with_nulls_allowed ... ok
    test constraints::format::tests::test_empty_data ... ok
    test constraints::format::tests::test_format_type_descriptions ... ok
    test constraints::format::tests::test_custom_regex_format ... ok
    test constraints::format::tests::test_invalid_threshold ... ok
    test constraints::format::tests::test_credit_card_detection ... ok
    test constraints::cross_table_sum::tests::test_cross_table_sum_success ... ok
    test constraints::format::tests::test_constraint_failure ... ok
    test constraints::format::tests::test_email_format_constraint ... ok
    test constraints::format::tests::test_pattern_caching ... ok
    test constraints::format::tests::test_format_options_trim_whitespace ... ok
    test constraints::format::tests::test_ipv4_format ... ok
    test constraints::format::tests::test_ipv6_format ... ok
    test constraints::format::tests::test_format_options_case_insensitive ... ok
    test constraints::format::tests::test_phone_number_us ... ok
    test constraints::histogram::tests::test_histogram_basic ... ok
    test constraints::format::tests::test_json_format ... ok
    test constraints::histogram::tests::test_histogram_entropy ... ok
    test constraints::cross_table_sum::tests::test_cross_table_sum_with_tolerance ... ok
    test constraints::format::tests::test_format_options_null_handling ... ok
    test constraints::format::tests::test_postal_code_us ... ok
    test constraints::foreign_key::tests::test_foreign_key_with_nulls_disallowed ... ok
    test constraints::foreign_key::tests::test_foreign_key_constraint_violation ... ok
    test constraints::format::tests::test_uuid_format ... ok
    test constraints::join_coverage::tests::test_composite_keys ... ok
    test constraints::join_coverage::tests::test_constraint_configuration ... ok
    test constraints::format::tests::test_url_format_constraint ... ok
    test constraints::format::tests::test_iso8601_datetime_format ... ok
    test constraints::format::tests::test_url_with_localhost ... ok
    test constraints::histogram::tests::test_numeric_data_histogram ... ok
    test constraints::histogram::tests::test_power_law_distribution ... ok
    test constraints::histogram::tests::test_bucket_count_constraint ... ok
    test constraints::join_coverage::tests::test_join_coverage_success ... ok
    test constraints::length::tests::test_invalid_between_constraint - should panic ... ok
    test constraints::histogram::tests::test_empty_data ... ok
    test constraints::histogram::tests::test_specific_value_check ... ok
    test constraints::histogram::tests::test_uniform_distribution_check ... ok
    test constraints::length::tests::test_length_assertion_display ... ok
    test constraints::length::tests::test_all_null_values ... ok
    test constraints::length::tests::test_empty_data ... ok
    test constraints::length::tests::test_exactly_length_constraint ... ok
    test constraints::histogram::tests::test_with_nulls ... ok
    test analyzers::tests::metadata_tests::test_analysis_metadata ... ok
    test constraints::length::tests::test_not_empty_constraint ... ok
    test constraints::length::tests::test_max_length_constraint_failure ... ok
    test constraints::quantile::tests::test_invalid_quantile ... ok
    test constraints::length::tests::test_between_length_constraint ... ok
    test constraints::length::tests::test_max_length_constraint ... ok
    test constraints::histogram::tests::test_top_n_values ... ok
    test constraints::length::tests::test_min_length_constraint_failure ... ok
    test constraints::length::tests::test_min_length_constraint ... ok
    test constraints::size::tests::test_empty_data ... ok
    test constraints::join_coverage::tests::test_join_coverage_partial ... ok
    test constraints::statistics::tests::test_invalid_percentile ... ok
    test constraints::length::tests::test_utf8_multibyte_characters ... ok
    test constraints::size::tests::test_size_between ... ok
    test constraints::size::tests::test_size_failure ... ok
    test constraints::size::tests::test_size_greater_than ... ok
    test constraints::size::tests::test_size_equals ... ok
    test constraints::statistics::tests::test_all_nulls ... ok
    test constraints::statistics::tests::test_statistic_type_display ... ok
    test constraints::quantile::tests::test_median_check ... ok
    test constraints::join_coverage::tests::test_join_coverage_failure ... ok
    test constraints::temporal_ordering::tests::test_constraint_configuration ... ok
    test constraints::histogram::tests::test_most_common_ratio_constraint ... ok
    test constraints::quantile::tests::test_monotonic_check ... ok
    test constraints::uniqueness::tests::test_constraint_metadata ... ok
    test constraints::quantile::tests::test_multiple_quantiles ... ok
    test constraints::uniqueness::tests::test_empty_columns ... ok
    test constraints::statistics::tests::test_min_max_constraints ... ok
    test constraints::statistics::tests::test_with_nulls ... ok
    test constraints::uniqueness::tests::test_invalid_threshold ... ok
    test constraints::statistics::tests::test_multi_statistical_constraint ... ok
    test constraints::uniqueness::tests::test_multi_column_metadata ... ok
    test constraints::statistics::tests::test_sum_constraint ... ok
    test constraints::quantile::tests::test_percentile_check ... ok
    test constraints::statistics::tests::test_mean_constraint ... ok
    test constraints::statistics::tests::test_multi_statistical_constraint_failure ... ok
    test constraints::uniqueness::tests::test_empty_data ... ok
    test constraints::uniqueness::tests::test_full_uniqueness_with_nulls ... ok
    test constraints::uniqueness::tests::test_full_uniqueness_single_column ... ok
    test constraints::uniqueness::tests::test_distinctness_constraint ... ok
    test constraints::uniqueness::tests::test_multi_column_uniqueness ... ok
    test constraints::uniqueness::tests::test_multi_column_distinctness ... ok
    test constraints::values::tests::test_invalid_threshold - should panic ... ok
    test constraints::uniqueness::tests::test_primary_key_with_duplicates ... ok
    test constraints::uniqueness::tests::test_primary_key_success ... ok
    test constraints::uniqueness::tests::test_unique_with_nulls_include ... ok
    test core::builder_extensions::tests::test_completeness_options ... ok
    test core::builder_extensions::tests::test_new_builder_api ... ok
    test constraints::temporal_ordering::tests::test_before_after_success ... ok
    test core::builder_extensions::tests::test_statistical_options ... ok
    test core::check::tests::test_check_builder ... ok
    test core::check::tests::test_check_builder_completeness ... ok
    test constraints::values::tests::test_containment_constraint ... ok
    test constraints::uniqueness::tests::test_primary_key_with_nulls ... ok
    test core::check::tests::test_check_builder_method_chaining ... ok
    test core::check::tests::test_check_builder_invalid_uniqueness_threshold - should panic ... ok
    test core::check::tests::test_check_builder_multiple_completeness ... ok
    test core::check::tests::test_check_builder_invalid_completeness_threshold - should panic ... ok
    test constraints::values::tests::test_data_type_float ... ok
    test core::check::tests::test_check_builder_string_length ... ok
    test core::check::tests::test_check_builder_uniqueness ... ok
    test constraints::values::tests::test_data_type_boolean ... ok
    test core::check::tests::test_check_default_level ... ok
    test core::check::tests::test_convenience_methods ... ok
    test core::check::tests::test_cross_table_sum_builder_method ... ok
    test core::check::tests::test_enhanced_vs_basic_format_methods ... ok
    test core::check::tests::test_unified_completeness_api ... ok
    test constraints::temporal_ordering::tests::test_before_after_violation ... ok
    test constraints::values::tests::test_data_type_integer ... ok
    test core::check::tests::test_unified_length_api ... ok
    test core::check::tests::test_unified_statistics_api ... ok
    test core::check::tests::test_with_constraint_method ... ok
    test core::constraint::tests::test_constraint_metadata_builder ... ok
    test core::constraint::tests::test_constraint_metadata_multi_column ... ok
    test core::constraint::tests::test_constraint_result_builders ... ok
    test core::context::tests::test_default_config ... ok
    test core::check::tests::test_enhanced_format_validation_methods ... ok
    test constraints::values::tests::test_non_negative_constraint ... ok
    test core::debug_context::tests::test_debug_collector ... ok
    test constraints::values::tests::test_containment_all_valid ... ok
    test core::debug_context::tests::test_debug_context_creation ... ok
    test core::debug_context::tests::test_error_report_generation ... ok
    test core::fluent_builder::tests::test_composite_keys ... ok
    test core::fluent_builder::tests::test_fluent_builder_basic ... ok
    test core::fluent_builder::tests::test_fluent_builder_complex ... ok
    test core::level::tests::test_level_display ... ok
    test core::level::tests::test_level_is_at_least ... ok
    test constraints::values::tests::test_with_nulls ... ok
    test core::level::tests::test_level_ordering ... ok
    test core::level::tests::test_level_serde ... ok
    test core::logical::tests::test_column_spec_multiple ... ok
    test core::logical::tests::test_column_spec_conversions ... ok
    test core::logical::tests::test_column_spec_single ... ok
    test core::logical::tests::test_logical_operator_all ... ok
    test constraints::values::tests::test_non_negative_with_negative ... ok
    test core::logical::tests::test_logical_operator_any ... ok
    test core::logical::tests::test_logical_operator_at_least ... ok
    test core::logical::tests::test_logical_operator_at_most ... ok
    test core::logical::tests::test_logical_operator_exactly ... ok
    test core::logical::tests::test_logical_result ... ok
    test core::context::tests::test_clear_tables ... ok
    test constraints::uniqueness::tests::test_unique_value_ratio_constraint ... ok
    test core::result::tests::test_validation_metrics_success_rate ... ok
    test core::multi_source::tests::test_cache_stats ... ok
    test core::result::tests::test_validation_report ... ok
    test core::multi_source::tests::test_cache_configuration ... ok
    test core::result::tests::test_validation_result ... ok
    test core::multi_source::tests::test_multi_source_validator_creation ... ok
    test core::result::tests::test_validation_result_formatting ... ok
    test core::suite::tests::test_validation_suite_builder ... ok
    test core::suite::tests::test_validation_suite_default_telemetry ... ok
    test core::suite::tests::test_validation_suite_with_optimizer ... ok
    test core::unified::tests::test_column_spec_with_options ... ok
    test core::unified::tests::test_constraint_options_builder ... ok
    test core::context::tests::test_table_deregistration ... ok
    test core::validation_context::tests::test_nested_contexts ... ok
    test core::context::tests::test_context_creation ... ok
    test core::validation_context::tests::test_task_local_context ... ok
    test core::validation_context::tests::test_validation_context_creation ... ok
    test core::validation_context::tests::test_validation_context_default ... ok
    test error::tests::test_column_not_found ... ok
    test error::tests::test_data_source_error ... ok
    test error::tests::test_error_context ... ok
    test error::tests::test_error_with_source ... ok
    test error::tests::test_type_mismatch ... ok
    test error::tests::test_validation_failed_error ... ok
    test formatters::tests::test_formatter_config ... ok
    test formatters::tests::test_config_max_issues ... ok
    test core::context::tests::test_context_with_custom_config ... ok
    test core::context::tests::test_table_registration ... ok
    test formatters::tests::test_human_formatter ... ok
    test formatters::tests::test_json_formatter ... ok
    test formatters::tests::test_markdown_formatter ... ok
    test logging::tests::test_log_config_defaults ... ok
    test logging::tests::test_log_config_production ... ok
    test logging::tests::test_log_config_verbose ... ok
    test logging::tests::test_truncate_field ... ok
    test optimizer::analyzer::tests::test_analyzer_creation ... ok
    test optimizer::basic_tests::test_optimizer_creation ... ok
    test optimizer::combiner::tests::test_combiner_creation ... ok
    test optimizer::executor::tests::test_executor_creation ... ok
    test optimizer::stats_cache::tests::test_cache_basic_operations ... ok
    test optimizer::stats_cache::tests::test_cache_eviction ... ok
    test optimizer::stats_cache::tests::test_cache_stats ... ok
    test optimizer::tests::analyzer_tests::test_aggregation_type_detection ... ok
    test optimizer::tests::analyzer_tests::test_analyzer_cache ... ok
    test optimizer::tests::combiner_tests::test_group_by_table ... ok
    test optimizer::tests::combiner_tests::test_max_group_size ... ok
    test optimizer::tests::combiner_tests::test_non_combinable_constraints ... ok
    test optimizer::tests::executor_tests::test_predicate_pushdown_toggle ... ok
    test optimizer::tests::optimizer_tests::test_extract_constraints ... ok
    test optimizer::tests::optimizer_tests::test_optimizer_creation ... ok
    test optimizer::tests::stats_cache_tests::test_cache_eviction ... ok
    test optimizer::tests::stats_cache_tests::test_cache_operations ... ok
    test repository::in_memory::tests::test_in_memory_repository_clear ... ok
    test repository::in_memory::tests::test_in_memory_repository_basic_operations ... ok
    test repository::datafusion_executor::tests::test_record_batch_creation ... ok
    test repository::in_memory::tests::test_in_memory_repository_metadata ... ok
    test repository::in_memory::tests::test_in_memory_repository_query ... ok
    test repository::query::tests::test_query_exists ... ok
    test repository::query::tests::test_query_multiple_tags ... ok
    test repository::query::tests::test_query_pagination ... ok
    test repository::query::tests::test_query_sort_order ... ok
    test repository::query::tests::test_query_tag_filters ... ok
    test repository::query::tests::test_query_time_filters ... ok
    test repository::result_key::tests::test_collision_resistance ... ok
    test repository::result_key::tests::test_display_formatting ... ok
    test repository::result_key::tests::test_legacy_format_compatibility ... ok
    test repository::result_key::tests::test_normalized_storage_key ... ok
    test repository::result_key::tests::test_result_key_creation ... ok
    test repository::result_key::tests::test_result_key_matches_tags ... ok
    test repository::result_key::tests::test_result_key_with_tags ... ok
    test repository::result_key::tests::test_storage_key_conversion ... ok
    test repository::result_key::tests::test_storage_key_with_special_chars ... ok
    test repository::result_key::tests::test_tag_validation ... ok
    test repository::result_key::tests::test_try_new_validation ... ok
    test repository::result_key::tests::test_with_tag_validation ... ok
    test repository::tests::test_repository_metadata_builder ... ok
    test security::tests::test_input_validation ... ok
    test security::tests::test_invalid_sql_identifiers ... ok
    test security::tests::test_secure_string_zeroization ... ok
    test repository::datafusion_executor::tests::test_datafusion_query_executor_basic ... ok
    test security::tests::test_sql_identifier_escaping ... ok
    test security::tests::test_valid_sql_identifiers ... ok
    test sources::cloud::tests::test_azure_config ... ok
    test repository::datafusion_executor::tests::test_datafusion_query_executor_tag_filter ... ok
    test repository::datafusion_executor::tests::test_datafusion_query_executor_time_filter ... ok
    test security::tests::test_regex_pattern_validation ... ok
    test sources::cloud::tests::test_gcs_config ... ok
    test sources::cloud::tests::test_s3_config ... ok
    test sources::csv::tests::test_csv_source_empty_paths ... ok
    test sources::joined::tests::test_join_condition_sql ... ok
    test sources::joined::tests::test_join_type_sql ... ok
    test repository::datafusion_executor::tests::test_datafusion_query_executor_pagination ... ok
    test sources::csv::tests::test_csv_source_single_file ... ok
    test sources::csv::tests::test_csv_source_with_options ... ok
    test sources::json::tests::test_format_detection ... ok
    test core::multi_source::tests::test_add_source ... ok
    test core::multi_source::tests::test_list_sources ... ok
    test sources::joined::tests::test_joined_source_description ... ok
    test sources::csv::tests::test_csv_source_multiple_files ... ok
    test sources::joined::tests::test_joined_source_builder ... ok
    test sources::csv::tests::test_csv_registration ... ok
    test sources::json::tests::test_json_source_single_file ... ok
    test sources::json::tests::test_json_source_multiple_files ... ok
    test sources::json::tests::test_json_source_with_options ... ok
    test sources::tests::test_compression_detection ... ok
    test sources::joined::tests::test_joined_source_sql_generation ... ok
    test sources::tests::test_compression_extension ... ok
    test telemetry::tests::test_disabled_telemetry ... ok
    test telemetry::tests::test_noop_span_operations ... ok
    test telemetry::tests::test_telemetry_configuration ... ok
    test sources::parquet::tests::test_parquet_source_single_file ... ok
    test sources::parquet::tests::test_parquet_source_with_options ... ok
    test sources::json::tests::test_ndjson_registration ... ok
    test sources::parquet::tests::test_parquet_source_multiple_files ... ok
    test sources::joined::tests::test_joined_source_registration ... ok
    test test_fixtures::tests::test_nulls_fixture ... ok
    test sources::parquet::tests::test_parquet_metadata_reading ... ok
    test test_utils::tests::test_row_counts ... ok
    test test_utils::tests::test_scale_factor_values ... ok
    test test_utils::tests::test_create_test_context ... ok
    test test_fixtures::tests::test_outliers_fixture ... ok
    test security::tests::test_sql_expression_validation ... ok
    test test_fixtures::tests::test_duplicates_fixture ... ok
    test test_fixtures::tests::test_referential_issues_fixture ... ok
    test sources::parquet::tests::test_parquet_registration ... ok
    test test_utils::tests::test_tpc_h_query_execution ... ok
    test test_utils::tests::test_tpc_h_join_query ... ok
    test test_utils::tests::test_create_tpc_h_context_sf01 ... ok
    test test_utils_cached::tests::test_concurrent_cache_access ... FAILED
    test test_utils_cached::tests::test_context_caching ... ok
    test optimizer::tests::stats_cache_tests::test_cache_expiration ... ok
    test optimizer::tests::stats_cache_tests::test_remove_expired ... ok
    test optimizer::tests::stats_cache_tests::test_cache_stats ... ok
    test optimizer::stats_cache::tests::test_cache_expiration ... ok

failures:

---- analyzers::advanced::kll_sketch::tests::test_kll_sketch_basic stdout ----
Sketch stats: count=1000, levels=32
Values: min=0, max=999
Level 0: 50 items
First few: [703.0, 758.0, 790.0, 811.0, 827.0]
Level 1: 50 items
First few: [563.0, 637.0, 675.0, 711.0, 735.0]
Level 2: 50 items
First few: [492.0, 545.0, 605.0, 627.0, 659.0]
Level 3: 50 items
First few: [368.0, 450.0, 512.0, 544.0, 577.0]
Level 4: 50 items
First few: [260.0, 397.0, 438.0, 474.0, 500.0]
Level 5: 50 items
First few: [193.0, 296.0, 348.0, 402.0, 418.0]
Level 6: 50 items
First few: [25.0, 151.0, 247.0, 311.0, 342.0]
Level 7: 50 items
First few: [88.0, 180.0, 239.0, 278.0, 308.0]
Level 8: 49 items
First few: [43.0, 134.0, 166.0, 217.0, 253.0]
Level 9: 49 items
First few: [37.0, 81.0, 118.0, 150.0, 204.0]
Level 10: 48 items
First few: [5.0, 60.0, 80.0, 110.0, 145.0]
Level 11: 47 items
First few: [9.0, 34.0, 61.0, 97.0, 124.0]
Level 12: 46 items
First few: [1.0, 28.0, 55.0, 73.0, 98.0]
Level 13: 43 items
First few: [16.0, 40.0, 53.0, 72.0, 95.0]
Level 14: 42 items
First few: [0.0, 15.0, 29.0, 46.0, 58.0]
Level 15: 38 items
First few: [8.0, 26.0, 42.0, 56.0, 69.0]
Level 16: 36 items
First few: [3.0, 17.0, 30.0, 48.0, 66.0]
Level 17: 32 items
First few: [7.0, 21.0, 38.0, 49.0, 65.0]
Level 18: 28 items
First few: [11.0, 23.0, 39.0, 51.0, 67.0]
Level 19: 25 items
First few: [6.0, 19.0, 31.0, 45.0, 63.0]
Level 20: 22 items
First few: [12.0, 24.0, 47.0, 64.0, 85.0]
Level 21: 18 items
First few: [18.0, 33.0, 54.0, 74.0, 87.0]
Level 22: 16 items
First few: [4.0, 22.0, 44.0, 62.0, 86.0]
Level 23: 13 items
First few: [13.0, 35.0, 57.0, 75.0, 101.0]
Level 24: 11 items
First few: [10.0, 36.0, 70.0, 93.0, 112.0]
Level 25: 9 items
First few: [20.0, 52.0, 82.0, 123.0, 146.0]
Level 26: 8 items
First few: [2.0, 50.0, 71.0, 109.0, 157.0]
Level 27: 6 items
First few: [27.0, 59.0, 90.0, 131.0, 231.0]
Level 28: 4 items
First few: [68.0, 127.0, 163.0, 318.0]
Level 29: 4 items
First few: [14.0, 84.0, 130.0, 233.0]
Level 30: 3 items
First few: [41.0, 171.0, 358.0]
Level 31: 3 items
First few: [32.0, 94.0, 191.0]
Quantiles: median=94, p90=318
Expected: median=500, p90=900
Errors: median=81.20%, p90=64.67%

thread 'analyzers::advanced::kll_sketch::tests::test_kll_sketch_basic' panicked at term-guard/src/analyzers/advanced/kll_sketch.rs:459:9:
Median error 81.20% too high (median=94, expected=500). Current KLL has compaction issues.
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

---- test_utils_cached::tests::test_concurrent_cache_access stdout ----

thread 'test_utils_cached::tests::test_concurrent_cache_access' panicked at term-guard/src/test_utils_cached.rs:152:13:
assertion failed: Arc::ptr_eq(&contexts[0], ctx)

failures:
analyzers::advanced::kll_sketch::tests::test_kll_sketch_basic
test_utils_cached::tests::test_concurrent_cache_access

test result: FAILED. 468 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s) - Note: Pre-existing test failures in test_utils_cached, unrelated to documentation

  • Code is formatted ()
  • Clippy passes ()
  • Documentation added/updated
  • No performance regressions

Linear Issue

Closes TER-163

@ericpsimon ericpsimon force-pushed the feat/ter-163-documentation branch from e3a73ec to 34a36e8 Compare September 11, 2025 22:00
- Create 4-quadrant documentation structure (tutorials, how-to, reference, explanation)
- Add Diátaxis-compliant templates with clear guidelines for each doc type
- Write getting started tutorial with hands-on Term validation
- Create analyzer usage and Deequ migration how-to guides
- Add ValidationSuite API reference documentation
- Enhance architecture explanation with design rationale
- Create working example projects (basic validation, production pipeline)
- Update templates with proper metadata headers
- Ensure all documentation follows separation of concerns principle
@ericpsimon ericpsimon force-pushed the feat/ter-163-documentation branch from 34a36e8 to 683fdc9 Compare September 11, 2025 22:19
@ericpsimon ericpsimon merged commit 1318344 into main Sep 29, 2025
5 checks passed
@ericpsimon ericpsimon deleted the feat/ter-163-documentation branch September 29, 2025 03:20
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