HaHafeng
91cab452d1
Major fixes: - Fix pivot transformation with special characters in column names - Fix compute column validation for Chinese punctuation - Fix recode dialog to fetch unique values from full dataset via new API - Add column mapping mechanism to handle special characters Database migration: - Add column_mapping field to dc_tool_c_sessions table - Migration file: 20251208_add_column_mapping UX improvements: - Darken table grid lines for better visibility - Reduce column width by 40% with tooltip support - Insert new columns next to source columns - Preserve original row order after operations - Add notice about 50-row preview limit Modified files: - Backend: SessionService, SessionController, QuickActionService, routes - Python: pivot.py, compute.py, recode.py, binning.py, conditional.py - Frontend: DataGrid, RecodeDialog, index.tsx, ag-grid-custom.css - Database: schema.prisma, migration SQL Status: Code complete, database migrated, ready for testing
26 lines
758 B
SQL
26 lines
758 B
SQL
-- 为 DcToolCSession 添加 dataStats 字段
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-- 用于缓存数据统计信息，支持数据探索问答功能
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--
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-- 执行方法：psql -d airesearch_v2 -f add_data_stats_to_tool_c_session.sql
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\c airesearch_v2
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-- 添加字段
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ALTER TABLE dc_schema.dc_tool_c_sessions
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ADD COLUMN IF NOT EXISTS data_stats JSONB NULL;
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-- 添加注释
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COMMENT ON COLUMN dc_schema.dc_tool_c_sessions.data_stats IS '数据统计信息缓存（用于数据探索问答）：{totalRows, columnStats}';
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-- 验证
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SELECT column_name, data_type, is_nullable
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FROM information_schema.columns
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WHERE table_schema = 'dc_schema'
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AND table_name = 'dc_tool_c_sessions'
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AND column_name = 'data_stats';
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\echo '✅ 字段 data_stats 已成功添加到 dc_tool_c_sessions 表'
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