Enhance getSchema error handling with fuzzy matching and Oracle-specific guidance #2
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Co-authored-by: tannerpace <52814471+tannerpace@users.noreply.github.com>
- Add fuzzy table name matching using Levenshtein distance algorithm - Provide helpful suggestions when table not found - Add case sensitivity guidance for Oracle table names - Include context-specific error messages for common Oracle errors - Add optimization notes to explain query is already optimized - Add troubleshooting hints for connection and permission issues Co-authored-by: tannerpace <52814471+tannerpace@users.noreply.github.com>
- Add QueryResult type import for better type safety - Replace 'any' types with proper Record<string, any> types - Extract MAX_LEVENSHTEIN_DISTANCE and MAX_TABLE_SUGGESTIONS constants - Add inline type definition for responseData instead of local interface Co-authored-by: tannerpace <52814471+tannerpace@users.noreply.github.com>
- Create detailed summary comparing before/after implementations - Document all error handling scenarios with examples - Show response format improvements for both success and error cases - Explain benefits for Copilot and users - Include performance analysis and code quality metrics Co-authored-by: tannerpace <52814471+tannerpace@users.noreply.github.com>
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[WIP] Improve error information in getSchema.ts for better optimization insights
Enhance getSchema error handling with fuzzy matching and Oracle-specific guidance
Oct 25, 2025
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tannerpace
October 25, 2025 23:17
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getSchema.tsprovided minimal error context, making it difficult for Copilot to recover from common mistakes like typos or understand Oracle-specific behaviors.Changes
Fuzzy Table Name Matching
Example response for typo:
{ "success": false, "error": "Table 'empoyees' not found...\n\nDid you mean:\n - EMPLOYEES\n - EMPLOYMENT", "suggestions": ["EMPLOYEES", "EMPLOYMENT"], "hint": "List all tables first to see available table names" }Context-Specific Error Messages
Optimization Transparency
optimization_notefield explaining queries already use indexed system tables with direct lookupsType Safety
anytypes withQueryResultandRecord<string, any>MAX_LEVENSHTEIN_DISTANCE,MAX_TABLE_SUGGESTIONS)Performance: Fuzzy matching triggers only on table-not-found (0 rows), adding ~50ms for typical databases.
Original prompt
💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.