296 lines
7.8 KiB
JSON
296 lines
7.8 KiB
JSON
{
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"area_monthly_metrics": {
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"description": "Monthly area-level housing market metrics.",
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"target_table": "silver.area_monthly_metrics",
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"primary_key": ["area_id", "month"],
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"columns": [
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{
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"name": "area_id",
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"type": "text",
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"required": true,
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"description": "Stable area identifier from silver.areas."
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},
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{
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"name": "month",
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"type": "month",
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"required": true,
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"description": "Metric month in YYYY-MM format."
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},
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{
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"name": "transaction_count",
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"type": "integer",
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"required": true,
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"min": 0,
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"description": "Observed second-hand transaction count."
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},
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{
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"name": "transaction_price_psm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Average transaction price, RMB per square meter."
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},
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{
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"name": "listing_count",
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"type": "integer",
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"required": true,
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"min": 0,
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"description": "Active listing count."
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},
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{
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"name": "listing_price_psm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Average listing price, RMB per square meter."
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},
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{
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"name": "median_days_on_market",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Median days on market."
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},
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{
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"name": "rent_price_psm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Monthly rent, RMB per square meter."
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},
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{
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"name": "new_supply_units",
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"type": "integer",
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"required": true,
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"min": 0,
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"description": "New residential supply units."
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},
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{
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"name": "land_residential_gfa_sqm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Residential land transaction GFA, square meters."
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},
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{
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"name": "mortgage_rate_pct",
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"type": "decimal",
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"required": true,
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"min": 0,
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"max": 20,
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"description": "Mainstream mortgage rate percentage."
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},
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{
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"name": "policy_signal",
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"type": "integer",
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"required": true,
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"min": -2,
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"max": 2,
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"description": "Policy direction signal from -2 to 2."
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},
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{
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"name": "source",
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"type": "text",
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"required": true,
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"description": "Human-readable source name or source code."
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}
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]
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},
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"neighborhood_monthly_metrics": {
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"description": "Monthly neighborhood-level housing market metrics.",
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"target_table": "silver.neighborhood_monthly_metrics",
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"primary_key": ["neighborhood_id", "month"],
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"columns": [
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{
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"name": "neighborhood_id",
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"type": "text",
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"required": true,
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"description": "Stable neighborhood identifier from silver.neighborhoods."
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},
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{
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"name": "month",
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"type": "month",
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"required": true,
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"description": "Metric month in YYYY-MM format."
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},
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{
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"name": "transaction_count",
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"type": "integer",
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"required": true,
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"min": 0,
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"description": "Observed transaction count."
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},
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{
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"name": "transaction_price_psm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Average transaction price, RMB per square meter."
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},
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{
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"name": "listing_count",
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"type": "integer",
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"required": true,
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"min": 0,
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"description": "Active listing count."
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},
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{
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"name": "listing_price_psm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Average listing price, RMB per square meter."
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},
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{
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"name": "rent_price_psm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Monthly rent, RMB per square meter."
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},
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{
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"name": "median_days_on_market",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Median days on market."
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},
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{
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"name": "available_units",
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"type": "integer",
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"required": true,
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"min": 0,
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"description": "Currently available units in the neighborhood sample."
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},
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{
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"name": "source",
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"type": "text",
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"required": true,
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"description": "Human-readable source name or source code."
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}
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]
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},
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"policy_events": {
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"description": "Policy events that can affect market liquidity, credit or demand.",
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"target_table": "raw.policy_events",
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"primary_key": ["event_date", "title"],
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"columns": [
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{
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"name": "event_date",
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"type": "date",
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"required": true,
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"description": "Policy event date in YYYY-MM-DD format."
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},
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{
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"name": "level",
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"type": "enum",
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"required": true,
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"allowed_values": ["national", "shanghai", "district"],
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"description": "Policy jurisdiction level."
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},
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{
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"name": "title",
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"type": "text",
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"required": true,
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"description": "Short policy title."
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},
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{
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"name": "impact_direction",
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"type": "integer",
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"required": true,
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"min": -2,
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"max": 2,
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"description": "Expected impact from -2 tightening to 2 easing."
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},
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{
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"name": "notes",
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"type": "text",
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"required": false,
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"description": "Analyst notes and interpretation."
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},
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{
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"name": "source_url",
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"type": "url",
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"required": false,
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"description": "Official notice or source URL."
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},
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{
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"name": "source",
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"type": "text",
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"required": true,
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"description": "Human-readable source name or source code."
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}
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]
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},
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"land_sales": {
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"description": "Residential land transaction records used for supply pressure analysis.",
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"target_table": "raw.land_sales",
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"primary_key": ["parcel_id"],
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"columns": [
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{
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"name": "parcel_id",
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"type": "text",
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"required": true,
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"description": "Stable land parcel identifier from the source."
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},
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{
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"name": "area_id",
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"type": "text",
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"required": true,
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"description": "Mapped area identifier from silver.areas."
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},
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{
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"name": "transaction_date",
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"type": "date",
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"required": true,
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"description": "Land transaction date in YYYY-MM-DD format."
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},
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{
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"name": "parcel_name",
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"type": "text",
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"required": true,
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"description": "Land parcel name."
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},
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{
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"name": "residential_gfa_sqm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Residential planned gross floor area, square meters."
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},
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{
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"name": "transaction_price_total_cny",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Total transaction price in RMB."
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},
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{
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"name": "floor_price_cny_psm",
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"type": "decimal",
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"required": true,
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"min": 0,
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"description": "Implied floor price, RMB per square meter."
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},
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{
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"name": "buyer",
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"type": "text",
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"required": false,
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"description": "Winning bidder or buyer."
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},
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{
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"name": "source_url",
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"type": "url",
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"required": false,
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"description": "Announcement or source URL."
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},
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{
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"name": "source",
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"type": "text",
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"required": true,
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"description": "Human-readable source name or source code."
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}
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]
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}
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}
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