8 Commits (fec97bbabec9d4bbddcec90fbd55496fde46a43f)

Author	SHA1	Message	Date
Rene Cannao	a3f0bade4e	feat: Convert NL2SQL to generic LLM bridge ... - Rename NL2SQL_Converter to LLM_Bridge for generic prompt processing - Update MySQL protocol handler from /* NL2SQL: */ to /* LLM: */ - Remove SQL-specific fields (sql_query, confidence, tables_used) - Add GENAI_OP_LLM operation type to GenAI module - Rename all genai_nl2sql_* variables to genai_llm_* - Update AI_Features_Manager to use LLM_Bridge - Deprecate ai_nl2sql_convert MCP tool with error message - LLM bridge now handles any prompt type via MySQL protocol This enables generic LLM access (summarization, code generation, translation, analysis) while preserving infrastructure for future NL2SQL implementation via Web UI + external agents.	1 month ago
Rene Cannao	2888ee3f45	Fix gemini-code-assist recommendations and implement comprehensive anomaly detection tests ... - Fix retry logic to use is_retryable_error function for proper HTTP error handling - Add exception handling to get_json_int function with try-catch around std::stoi - Improve validate_numeric_range to use strtol instead of atoi for better error reporting - Fix Chinese characters in documentation (non-zero -> non-zero) - Replace placeholder tests with actual comprehensive tests for anomaly detection functionality - Create new standalone unit test anomaly_detector_unit-t.cpp with 29 tests covering: * SQL injection pattern detection (12 tests) * Query normalization (8 tests) * Risk scoring calculations (5 tests) * Configuration validation (4 tests) - All tests pass successfully, providing meaningful validation of core anomaly detection logic Thanks to gemini-code-assist for the thorough code review and recommendations.	1 month ago
Rene Cannao	ae4200dbc0	Enhance AI features with improved validation, memory safety, error handling, and performance monitoring ... - Rename validate_provider_name to validate_provider_format for clarity - Add null checks and error handling for all strdup() operations - Enhance error messages with more context and HTTP status codes - Implement performance monitoring with timing metrics for LLM calls and cache operations - Add comprehensive test coverage for edge cases, retry scenarios, and performance - Extend status variables to track performance metrics - Update MySQL session to report timing information to AI manager	1 month ago
Rene Cannao	8f38b8a577	feat: Add exponential backoff retry for transient LLM failures ... This commit adds configurable retry logic with exponential backoff for NL2SQL LLM API calls. Changes: - Add retry configuration to NL2SQLRequest (max_retries, retry_backoff_ms, retry_multiplier, retry_max_backoff_ms) - Add is_retryable_error() to identify retryable HTTP/CURL errors - Add sleep_with_jitter() for exponential backoff with 10% jitter - Add call_generic_openai_with_retry() wrapper - Add call_generic_anthropic_with_retry() wrapper - Update NL2SQL_Converter::convert() to use retry wrappers Default retry behavior: - 3 retries with 1000ms initial backoff - 2.0x multiplier, 30000ms max backoff - Retries on empty responses (transient failures) Part of: Phase 3 of NL2SQL improvement plan	1 month ago
Rene Cannao	d0dc36ac0b	feat: Add structured logging with timing and request IDs ... Add comprehensive structured logging for NL2SQL LLM API calls with request correlation, timing metrics, and detailed error context. Changes: - Add request_id field to NL2SQLRequest with UUID-like auto-generation - Add structured logging macros: * LOG_LLM_REQUEST: Logs URL, model, prompt length with request ID * LOG_LLM_RESPONSE: Logs HTTP status, duration_ms, response preview * LOG_LLM_ERROR: Logs error phase, message, and status code - Update call_generic_openai() signature to accept req_id parameter - Update call_generic_anthropic() signature to accept req_id parameter - Add timing metrics to both LLM call functions using clock_gettime() - Replace existing debug logging with structured logging macros - Update convert() to pass request_id to LLM calls Request IDs are generated as UUID-like strings (e.g., "12345678-9abc-def0-1234-567890abcdef") and are included in all log messages for correlation. This allows tracking a single NL2SQL request through all log lines from request to response. Timing is measured using CLOCK_MONOTONIC for accurate duration tracking of LLM API calls, reported in milliseconds. This provides much better debugging capability when troubleshooting NL2SQL issues, as administrators can now: - Correlate all log lines for a single request - See exact timing of LLM API calls - Identify which phase of processing failed - Track request/response metrics Fixes #2 - Add Structured Logging	1 month ago
Rene Cannao	897d306d2d	Refactor: Simplify NL2SQL to use only generic providers ... Remove Ollama-specific provider code and use only generic OpenAI-compatible and Anthropic-compatible providers. Ollama is now used via its OpenAI-compatible endpoint at /v1/chat/completions. Changes: - Remove LOCAL_OLLAMA from ModelProvider enum - Remove ai_nl2sql_ollama_model and ai_nl2sql_ollama_url variables - Remove call_ollama() function from LLM_Clients.cpp - Update default configuration to use OpenAI provider with Ollama URL - Update all documentation to reflect generic-only approach Configuration: - ai_nl2sql_provider: 'openai' or 'anthropic' (default: 'openai') - ai_nl2sql_provider_url: endpoint URL (default: Ollama OpenAI-compatible) - ai_nl2sql_provider_model: model name - ai_nl2sql_provider_key: API key (optional for local endpoints) This simplifies the codebase by removing a separate code path for Ollama and aligns with the goal of avoiding provider-specific variables.	1 month ago
Rene Cannao	4f45c25945	docs: Add comprehensive doxygen comments to NL2SQL headers and LLM_Clients ... - Add file-level doxygen documentation with @file, @brief, @date, @version - Add detailed class and method documentation with @param, @return, @note, @see - Document data structures (NL2SQLRequest, NL2SQLResult, ModelProvider) - Add section comments and inline documentation for implementation files - Document all three LLM provider APIs (Ollama, OpenAI, Anthropic)	1 month ago
Rene Cannao	147a059781	feat: Add NL2SQL converter with hybrid LLM support ... - Add NL2SQL_Converter with prompt building and model selection - Add LLM clients for Ollama, OpenAI, Anthropic APIs - Update Makefile for new source files	1 month ago