SG datagas fee line graph
    WITH
    eth_tx_fees AS (
    SELECT
    'ethereum' AS dataset,
    TO_CHAR(BLOCK_TIMESTAMP, 'YYYY-MM') AS year_month,
    tx_fee,
    GAS_LIMIT
    FROM
    ethereum.core.fact_transactions
    WHERE
    BLOCK_TIMESTAMP >= CURRENT_DATE() - INTERVAL '1095 days'
    ),
    polygon_tx_fees AS (
    SELECT
    'polygon' AS dataset,
    TO_CHAR(BLOCK_TIMESTAMP, 'YYYY-MM') AS year_month,
    tx_fee,
    GAS_LIMIT
    FROM
    polygon.core.fact_transactions
    WHERE
    BLOCK_TIMESTAMP >= CURRENT_DATE() - INTERVAL '1095 days'
    ),
    bsc_tx_fees AS (
    SELECT
    'bsc' AS dataset,
    TO_CHAR(BLOCK_TIMESTAMP, 'YYYY-MM') AS year_month,
    tx_fee,
    GAS_LIMIT
    FROM
    bsc.core.fact_transactions
    WHERE
    BLOCK_TIMESTAMP >= CURRENT_DATE() - INTERVAL '1095 days'
    ),
    avalanche_tx_fees AS (
    SELECT
    Run a query to Download Data