78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package history
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const DefaultDatabase = "lingniu_vehicle_ts"
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func SchemaStatements(database string) []string {
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if database == "" {
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database = DefaultDatabase
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}
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return []string{
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"CREATE DATABASE IF NOT EXISTS " + database + " KEEP 7300 DURATION 10 BUFFER 256",
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"USE " + database,
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`CREATE STABLE IF NOT EXISTS raw_frames (
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ts TIMESTAMP,
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frame_id NCHAR(64),
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event_id NCHAR(64),
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message_id INT,
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event_time TIMESTAMP,
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received_at TIMESTAMP,
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raw_size_bytes INT,
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raw_hex BINARY(16374),
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raw_text BINARY(16374),
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parsed_json BINARY(16374),
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parse_status NCHAR(16),
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parse_error BINARY(1024),
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source_endpoint NCHAR(128)
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) TAGS (
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protocol NCHAR(32),
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vehicle_key NCHAR(64),
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vin NCHAR(32),
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phone NCHAR(32),
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device_id NCHAR(64)
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)`,
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`CREATE STABLE IF NOT EXISTS raw_frame_payload_chunks (
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ts TIMESTAMP,
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event_id NCHAR(64),
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frame_id NCHAR(64),
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received_at TIMESTAMP,
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payload_kind NCHAR(32),
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chunk_index INT,
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chunk_count INT,
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chunk_text BINARY(16000)
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) TAGS (
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protocol NCHAR(32),
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vehicle_key NCHAR(64),
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vin NCHAR(32),
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phone NCHAR(32),
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device_id NCHAR(64)
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)`,
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`CREATE STABLE IF NOT EXISTS vehicle_locations (
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ts TIMESTAMP,
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event_id NCHAR(64),
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received_at TIMESTAMP,
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longitude DOUBLE,
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latitude DOUBLE,
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altitude_m DOUBLE,
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speed_kmh DOUBLE,
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soc_percent DOUBLE,
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direction_deg INT,
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alarm_flag BIGINT,
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status_flag BIGINT,
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total_mileage_km DOUBLE
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) TAGS (
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protocol NCHAR(32),
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vin NCHAR(32)
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)`,
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}
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}
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// SchemaMigrationStatements contains additive TDengine changes that must also
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// be applied to an already existing stable. The writer treats duplicate-column
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// errors as success so startup remains idempotent across releases.
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func SchemaMigrationStatements(database string) []string {
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if database == "" {
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database = DefaultDatabase
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}
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return []string{"ALTER STABLE " + database + ".vehicle_locations ADD COLUMN soc_percent DOUBLE"}
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}
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