Schema

blocks.csv

Column	Type
number	bigint
hash	hex_string
parent_hash	hex_string
logs_bloom	hex_string
transactions_root	hex_string
state_root	hex_string
receipts_root	hex_string
size	bigint
extra_data	hex_string
gas_used	numeric
block_timestamp	timestamp
block_unix_timestamp	numeric
transaction_count	bigint
block_score	numeric
total_block_score	numeric
governance_data	hex_string
vote_data	hex_string
committee	struct
proposer	hex_string
reward_address	adresss
base_fee_per_gas	numeric

transactions.csv

Column	Type
hash	hex_string
nonce	bigint
block_hash	hex_string
block_number	bigint
transaction_index	bigint
from_address	address
to_address	address
value	numeric
gas	bigint
gas_price	bigint
input	hex_string
fee_payer	hex_string
fee_payer_signatures	struct
fee_ratio	bigint
sender_tx_hash	hex_string
signatures	struct
tx_type	string
tx_type_int	bigint
block_timestamp	timestamp
block_unix_timestamp	numeric
receipt_gas_used	numeric
receipt_contract_address	adresss
receipt_status	bigint
max_priority_fee_per_gas	numeric
max_fee_per_gas	numeric
access_list	struct

token_transfers.csv

Column	Type
token_address	address
from_address	address
to_address	address
value	string
block_hash	hex_string
block_number	bigint
block_timestamp	timestamp
block_unix_timestamp	numeric
transaction_hash	hex_string
transaction_receipt_status	bigint
log_index	bigint

receipts.csv

Column	Type
transaction_hash	hex_string
transaction_index	bigint
block_hash	hex_string
block_number	bigint
gas	numeric
gas_price	numeric
gas_used	numeric
effective_gas_price	numeric
contract_address	address
logs_bloom	hex_string
nonce	bigint
fee_payer	hex_string
fee_payer_signatures	struct
fee_ratio	bigint
code_format	string
human_readable	boolean
tx_error	string
key	hex_string
input_data	hex_string
from_address	address
to_address	address
type_name	string
type_int	bigint
sender_tx_hash	hex_string
signatures	struct
status	bigint
value	string
input_json	struct
access_list	struct
chain_id	bigint
max_priority_fee_per_gas	numeric
max_fee_per_gas	numeric
block_timestamp	timestamp
block_unix_timestamp	numeric

logs.csv

Column	Type
block_number	bigint
block_hash	hex_string
block_timestamp	timestamp
block_unix_timestamp	numeric
transaction_hash	hex_string
transaction_index	bigint
transaction_receipt_status	bigint
log_index	bigint
address	address
data	string
topics	string

contracts.csv

Column	Type
address	address
bytecode	hex_string
function_sighashes	string
is_erc20	boolean
is_erc721	boolean
is_erc1155	boolean
block_number	bigint
block_hash	hex_string
block_timestamp	timestamp
block_unix_timestamp	numeric
transaction_hash	hex_string
transaction_index	bigint
transaction_receipt_status	bigint
trace_index	bigint
trace_status	bigint
creator_address	address

tokens.csv

Column	Type
address	address
symbol	string
name	string
decimals	bigint
total_supply	string
function_sighashes	string
is_erc20	boolean
is_erc721	boolean
is_erc1155	boolean
block_number	bigint
block_hash	hex_string
block_timestamp	timestamp
block_unix_timestamp	numeric
transaction_hash	hex_string
transaction_index	bigint
transaction_receipt_status	bigint
trace_index	bigint
trace_status	bigint
creator_address	address

traces.csv

Column	Type
block_number	bigint
block_hash	hex_string
block_timestamp	timestamp
block_unix_timestamp	numeric
transaction_hash	hex_string
transaction_index	bigint
transaction_receipt_status	bigint
from_address	address
to_address	address
value	numeric
input	hex_string
output	hex_string
trace_type	string
call_type	string
gas	numeric
gas_used	numeric
subtraces	bigint
trace_address	string
error	string
status	bigint
trace_index	string

You can find column descriptions in https://github.com/klaytn/klaytn-etl

Note: for the address type all hex characters are lower-cased. boolean type can have 2 values: True or False.