26 lines
1.1 KiB
SQL
26 lines
1.1 KiB
SQL
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-- Migration: Add elevation_dataset_file_meta table for storing file-level coordinate ranges
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-- Date: 2026-06-13
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-- Description: Create new table to store bbox and metadata for each elevation file in a dataset
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CREATE TABLE IF NOT EXISTS elevation_dataset_file_meta (
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id VARCHAR(32) PRIMARY KEY,
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dataset_id VARCHAR(32) NOT NULL,
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file_path VARCHAR(2048) NOT NULL,
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file_name VARCHAR(512) NOT NULL,
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bbox_min_lon DOUBLE PRECISION,
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bbox_max_lon DOUBLE PRECISION,
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bbox_min_lat DOUBLE PRECISION,
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bbox_max_lat DOUBLE PRECISION,
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sample_count INTEGER DEFAULT 0,
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create_date TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
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update_date TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
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FOREIGN KEY (dataset_id) REFERENCES elevation_dataset(id) ON DELETE CASCADE
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);
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CREATE INDEX idx_elevation_file_meta_dataset ON elevation_dataset_file_meta(dataset_id);
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CREATE INDEX idx_elevation_file_meta_path ON elevation_dataset_file_meta(dataset_id, file_path);
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-- Notes:
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-- After running this migration, run the elevation dataset analysis task for each dataset
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-- to populate the file metadata with coordinate ranges.
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