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1. Add `DDBDailyFactor.py`, which creates daily factors from HFT data.

Browse Source 
2. Correct some typo in `DDBLoader.py`, but shouldn't affect its normal behaviour.
main
Guofu Li 2 years ago
parent 65d667ecab
commit 621b38dce3
3 changed files with 1087 additions and 3 deletions
Show Stats Download Patch File Download Diff File

216
DDBDailyFactor.py
Unescape View File

@ -0,0 +1,216 @@
from pprint import pprint
from tqdm import tqdm
import functools
import dolphindb as ddb
from DDBLoader import DDBLoader
def load_ddb_table(hft_tbl_name):
def decorator(func):
@functools.wraps(func)
def wrapper(self, *args, **kwargs):
self.ddb_sess.run("""
// 载入计算使用的原始数据：分钟线数据
tbl = loadTable("{hft_ddb_path}", "{hft_tbl_name}");
""".format(
hft_ddb_path = DDBLoader.ddb_path,
hft_tbl_name = hft_tbl_name,
))
print('Did load', hft_tbl_name)
return func(self)
return wrapper
return decorator
class DailyFactor(object):
#ddb_hft_path = "dfs://hft_stock_ts"
#ddb_hft_dbname = "db_hft_stock"
ddb_daily_path = "dfs://daily_stock_ts"
ddb_daily_dbname = "db_daily_stock"
ddb_config = {
'host' : '192.168.1.167',
'username' : 'admin',
'password' : '123456',
}
# 这里的partition数量未必需要和hft表的一致
# 当读取hft表的时候，需要使用DDBLoader中的`num_code_partition`，而不是此字段
num_code_partition = 50
def __init__(self):
self.ddb_sess = ddb.session(self.ddb_config['host'], 8848)
self.ddb_sess.login(self.ddb_config['username'], self.ddb_config['password'])
def create_ddb_database(self):
"""
因为日频数据量较小，内部可以使用m_nDate作为sort_key，所以分区仅需要对stock_id做[HASH, 50]即可，因此不需要输入calendar数据
"""
self.ddb_sess.run("""
daily_stock_ts = database(
"{ddb_hft_path}",
HASH, [SYMBOL, {num_code_parition}],
engine = 'TSDB'
)
""".format(
ddb_hft_path = DDBLoader.ddb_path,
num_code_partition = self.num_code_partition
))
print('Did create database')
def load_ddb_database(self):
self.ddb_sess.run("""
{dbName} = database(
directory = '{dbPath}',
partitionType = HASH,
partitionScheme = [SYMBOL, {num_code_partition}],
engine = 'TSDB'
)
""".format(
dbName = self.ddb_daily_dbname,
dbPath = self.ddb_daily_path,
num_code_partition = self.num_code_partition
))
print('Did load database.')
def append_factor_columns(self, factor_name_list, memory_tbl_name, partition_tbl_name):
code = """
addColumn({partition_tbl_name}, {col_name_list}, {col_type_list});
""".format(
partition_tbl_name = partition_tbl_name,
col_name_list = '`' + '`'.join(factor_name_list),
col_type_list = '[' + ','.join(['DOUBLE']*len(factor_name_list)) + ']'
)
print('Will add columns via script:')
print(code)
self.ddb_sess.run(code)
code = """
{partition_tbl_name}.tableInsert({memory_tbl_name})
""".format(
partition_tbl_name = partition_tbl_name,
memory_tbl_name = memory_tbl_name
)
print('Will append date via script:')
print(code)
self.ddb_sess.run(code)
def append_to_partition_table(self, partition_tbl_name, memory_tbl_name):
self.ddb_sess.run("""
{partition_tbl_name}.tableInsert({memory_tbl_name})
""".format(
partition_tbl_name = partition_tbl_name,
memory_tbl_name = memory_tbl_name
))
def create_factor_partition_table(self, partition_tbl_name, memory_tbl_name):
"""
把数据从内存表（`memory_tbl_name`）添加到分区表（`partition_tbl_name`）
"""
# createPartitionedTable(
# dbHandle, table, tableName,
# [partitionColumns], [compressMethods],
# [sortColumns], [keepDuplicates=ALL], [sortKeyMappingFunction])
code = """
// 保证创建新的分区表不会和已经存在表冲突
if (existsTable("{ddb_daily_path}", "{partition_tbl_name}")) {{
dropTable({ddb_daily_dbname}, "{partition_tbl_name}");
}}
{partition_tbl_name} = createPartitionedTable(
dbHandle = {ddb_daily_dbname},
table = {memory_tbl_name},
tableName = "{partition_tbl_name}",
partitionColumns = 'code',
compressMethods = {{'m_nDate' : 'delta'}},
sortColumns = `code`m_nDate
);
""".format(
ddb_daily_path = self.ddb_daily_path,
ddb_daily_dbname = self.ddb_daily_dbname,
partition_tbl_name = partition_tbl_name,
memory_tbl_name = memory_tbl_name,
)
print('Will create partitioned factor table via script:')
print(code)
self.ddb_sess.run(code)
@load_ddb_table("KLinePartitioned")
def make_kurto_memory_table(self):
memory_table_name = "kurto"
code_tpl = """
// 需要首先创建分钟线收益表
// 使用`context by`使得计算结果仍然为一个序列
// 使用`where partition()`来逐个加载分区
ret_sql = select
code, m_nDate, eachPre(\, m_nClose)-1.0 as ret
from tbl
where partition(code, {partition_id})
context by m_nDate;
// 计算kurto指标，`ret`表中每日第一条记录为空，似乎并不造成影响
kurto_sql = select
code, m_nDate, sqrt(239) * sum(pow(ret, 3)) / pow(sum(pow(ret, 2)), 1.5) as kurto
from ret_sql
group by code, m_nDate;
"""
with tqdm(range(DDBLoader.num_code_partition)) as pbar:
#with tqdm(range(1)) as pbar:
for partition_id in pbar:
self.ddb_sess.run(code_tpl.format(
partition_id = partition_id,
))
# 因为原表有50个分区，需要逐个计算，因此先创建一个内存临时表
# 否则一旦第一个分区插入分区表后，就无法再插入后续只包含部分字段的数据了
if partition_id == 0:
self.ddb_sess.run("""
{memory_table_name} = table(kurto_sql)
""".format(
memory_table_name = memory_table_name
))
# 上面`table`语句仅仅是创建表结构，
# 然后使用`tableInsert`把真实数据插入进去
self.ddb_sess.run("""
{memory_table_name}.tableInsert(kurto_sql)
""".format(
memory_table_name = memory_table_name
))
print('Did finish all parititons for kurto.')
pprint(self.ddb_sess.run(f"{memory_table_name}"))
return memory_table_name
def main():
factor = DailyFactor()
factor.load_ddb_database()
memory_table_name = factor.make_kurto_memory_table()
factor.create_factor_partition_table(
'hft_daily_factor',
memory_table_name
)
factor.append_to_partition_table(
'hft_daily_factor',
memory_table_name
)
if __name__ == '__main__':
main()

17
DDBLoader.py
Unescape View File

@ -21,6 +21,9 @@ import ProtoBuffEntitys
def make_stock_daily_df(blob, type_name, stock_id):
"""
用于做多进程录入ddb的函数
"""
blob = gzip.decompress(blob)
dataArray = eval(f"ProtoBuffEntitys.{type_name}Message_pb2.{type_name}Array()")
dataArray.ParseFromString(blob)
@ -51,6 +54,9 @@ def make_stock_daily_df(blob, type_name, stock_id):
def dump_stock_daily_to_ddb(row, type_name, stock_id):
"""
用于做多进程录入ddb的函数
"""
df_table_name = type_name
df = make_stock_daily_df(row[2], type_name, stock_id)
@ -168,6 +174,9 @@ class DDBLoader(object):
'password' : '123456'
}
# this value may be used by factor makers, which may loop through code partitions
num_code_partition = 50
num_workers = 8
default_table_capacity = 10000
ddb_dump_journal_fname = 'ddb_dump_journal.csv'
@ -258,8 +267,10 @@ class DDBLoader(object):
# 这里看起来直接使用dolphindb的脚本语句更方便一些
self.ddb_sess.run("""
db_stock = database("", 5, [SYMBOL, 50])
""")
db_stock = database("", 5, [SYMBOL, {num_code_partition}])
""".format(
num_code_partition = self.num_code_parition
))
#self.ddb_sess.run("""
# db_stock = database("", 1, symbol({partitions}))
#""".format(
@ -346,7 +357,7 @@ class DDBLoader(object):
dbHandle={ddb_dbname},
table={mem_table},
tableName=`{per_table},
sortCOlumns=`code`m_nDate,
sortColumns=`code`m_nDate,
compressMethods={{"m_nDate":"delta"}}
), {mem_table})
""".format(

857
ddb.ipynb
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@ -0,0 +1,857 @@
{
"cells": [
{
"cell_type": "code",
"execution_count": 1,
"id": "7246e0c8-61cd-4cbf-a978-aa0dc0172d6d",
"metadata": {},
"outputs": [],
"source": [
"import dolphindb as ddb"
]
},
{
"cell_type": "code",
"execution_count": 9,
"id": "5d0f471e-682e-43cc-abdb-7e52f3bbd707",
"metadata": {},
"outputs": [],
"source": [
"sess = ddb.session('192.168.1.7', 8848)\n",
"sess.login('admin', '123456')"
]
},
{
"cell_type": "code",
"execution_count": 7,
"id": "ed17fd0b-9b36-47e4-9ab6-11459a3621fb",
"metadata": {},
"outputs": [],
"source": [
"# backup(backup_path, sql_obj, force, parallel)\n",
"code = \"\"\"\n",
" backup('/data/dolphindb/backup/', <select * from loadTable(\"dfs://hft_stock_ts\", \"KLinePartitioned\")>, false, true)\n",
"\"\"\""
]
},
{
"cell_type": "code",
"execution_count": 10,
"id": "8b7dae3d-aef1-4c50-92b2-460d4fea0a96",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"0"
]
},
"execution_count": 10,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"sess.run(code)"
]
},
{
"cell_type": "code",
"execution_count": 6,
"id": "11275975-af43-4123-973a-f75096eb4e43",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"2311.0"
]
},
"execution_count": 6,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"115550 / 50"
]
},
{
"cell_type": "code",
"execution_count": 25,
"id": "155735c7-bdad-4c64-a2a1-514fe54e088c",
"metadata": {},
"outputs": [],
"source": [
"import dolphindb as ddb\n",
"\n",
"sess = ddb.session('localhost', 8848)\n",
"sess.login('admin', '123456')"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "a2e95bc5-c1d5-47f5-9488-9b8702947afc",
"metadata": {},
"outputs": [],
"source": [
"# migrate(backupDir, [backupDBPath], [backupTableName], [newDBPath=backupDBPath], [newTableName=backupTableName])\n",
"code = \"\"\"\n",
" migrate('/data/dolphindb/backup/',\"dfs://hft_stock_ts\", \"KLinePartitioned\")\n",
"\"\"\""
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "8a6198ef-e7f1-4f58-ba24-32dc429c9803",
"metadata": {},
"outputs": [],
"source": [
"sess.run(code)"
]
},
{
"cell_type": "code",
"execution_count": 28,
"id": "60f71516-33fc-4147-9740-c493ccb6b6a8",
"metadata": {},
"outputs": [],
"source": [
"def make_kurto_code_partition(partition_num):\n",
" code = \"\"\"\n",
" tbl = loadTable(\"dfs://hft_stock_ts\", \"KLinePartitioned\");\n",
" ret = select \n",
" code, m_nDate, eachPre(\\, m_nClose)-1.0 as ret \n",
" from tbl \n",
" where partition(code, {partition_num}) \n",
" context by m_nDate;\n",
" kurto = select \n",
" code, m_nDate, sqrt(239) * sum(pow(ret, 3)) / pow(sum(pow(ret, 2)), 1.5) as kurto \n",
" from ret \n",
" group by code, m_nDate;\n",
" \"\"\".format(\n",
" partition_num = partition_num\n",
" )\n",
" sess.run(code)"
]
},
{
"cell_type": "code",
"execution_count": 32,
"id": "1397c1b7-f81a-465e-868a-894b3ef818fc",
"metadata": {},
"outputs": [
{
"data": {
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],
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" code count\n",
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"2 000602.SZ 47\n",
"3 000677.SZ 2009\n",
"4 000731.SZ 2311\n",
".. ... ...\n",
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"95 688052.SH 52\n",
"96 688091.SH 198\n",
"97 688368.SH 656\n",
"98 688396.SH 575\n",
"\n",
"[99 rows x 2 columns]"
]
},
"execution_count": 32,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"sess.run(\"\"\"\n",
" select code, count(*) from kurto group by code\n",
"\"\"\")"
]
},
{
"cell_type": "code",
"execution_count": 12,
"id": "59758901-3728-4355-bbb8-15b3eb537cdf",
"metadata": {},
"outputs": [],
"source": [
"def create_daily_ddb_database():\n",
" code = \"\"\"\n",
" daily_stock_ts = database(\n",
" \"dfs://daily_stock_ts\", \n",
" HASH, [SYMBOL, 50], \n",
" engine = 'TSDB'\n",
" )\n",
" \"\"\"\n",
" sess.run(code)"
]
},
{
"cell_type": "code",
"execution_count": 38,
"id": "d8fa94ae-6ca4-41f3-8b13-47ab8876ba95",
"metadata": {},
"outputs": [],
"source": [
"def load_daily_ddb_database():\n",
" code = \"\"\"\n",
" daily_stock_ts = database(\"dfs://daily_stock_ts\")\n",
" \"\"\"\n",
" sess.run(code)\n",
"\n",
"load_daily_ddb_database()"
]
},
{
"cell_type": "code",
"execution_count": 43,
"id": "84eb237e-959c-419f-bce1-6779acda86d4",
"metadata": {},
"outputs": [],
"source": [
"def create_kurto_partition_table():\n",
" # createPartitionedTable(dbHandle, table, tableName, [partitionColumns], [compressMethods], [sortColumns], [keepDuplicates=ALL], [sortKeyMappingFunction])\n",
" code = \"\"\"\n",
" dropTable(daily_stock_ts, \"kurto_partitioned\");\n",
" kurto_partitioned = createPartitionedTable(\n",
" daily_stock_ts,\n",
" kurto, \n",
" \"kurto_partitioned\",\n",
" partitionColumns = 'code',\n",
" compressMethods = {'m_nDate' : 'delta'},\n",
" sortColumns = `code`m_nDate\n",
" );\n",
" \"\"\"\n",
" sess.run(code)\n",
" \n",
"create_kurto_partition_table()"
]
},
{
"cell_type": "code",
"execution_count": 40,
"id": "0d93b3d1-39b7-4e23-8abf-eda86dcd2a23",
"metadata": {},
"outputs": [
{
"data": {
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" </tbody>\n",
"</table>\n",
"</div>"
],
"text/plain": [
" code m_nDate kurto\n",
"0 000400.SZ 2013-01-04 -0.317991\n",
"1 000558.SZ 2013-01-04 -15.387820\n",
"2 000677.SZ 2013-01-04 -15.459625\n",
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"8 000935.SZ 2013-01-04 15.413214\n",
"9 000970.SZ 2013-01-04 15.458413"
]
},
"execution_count": 40,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"sess.run(\"\"\"\n",
" kurto_partitioned.tableInsert(kurto);\n",
"\"\"\")"
]
},
{
"cell_type": "code",
"execution_count": 41,
"id": "eea5cb0b-8452-41a9-a0ad-7cf52c856c25",
"metadata": {},
"outputs": [
{
"data": {
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" <tbody>\n",
" <tr>\n",
" <th>0</th>\n",
" <td>154953</td>\n",
" </tr>\n",
" </tbody>\n",
"</table>\n",
"</div>"
],
"text/plain": [
" count\n",
"0 154953"
]
},
"execution_count": 41,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"sess.run(\"\"\"\n",
" select count(*) from kurto_partitioned;\n",
"\"\"\")"
]
},
{
"cell_type": "code",
"execution_count": 45,
"id": "9e7bc856-517b-4bf9-866d-4fe85b9705a3",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"{'partitionType': 5,\n",
" 'partitionColumnType': 17,\n",
" 'partitionColumnIndex': 0,\n",
" 'chunkPath': None,\n",
" 'colDefs': name typeString typeInt comment\n",
" 0 code SYMBOL 17 \n",
" 1 m_nDate DATE 6 \n",
" 2 kurto DOUBLE 16 ,\n",
" 'chunkGranularity': 'TABLE',\n",
" 'partitionTypeName': 'HASH',\n",
" 'keepDuplicates': 'ALL',\n",
" 'engineType': 'TSDB',\n",
" 'partitionColumnName': 'code',\n",
" 'partitionSchema': 50,\n",
" 'sortColumns': array(['code', 'm_nDate'], dtype=object),\n",
" 'partitionSites': None}"
]
},
"execution_count": 45,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"sess.run(\"\"\"\n",
" schema(loadTable(\"dfs://daily_stock_ts\", \"kurto_partitioned\"));\n",
"\"\"\")"
]
},
{
"cell_type": "code",
"execution_count": 46,
"id": "94ae00b5-ba42-48b9-b114-012cf306d871",
"metadata": {},
"outputs": [],
"source": [
"sess.run(\"m_table = table(kurto)\")"
]
},
{
"cell_type": "code",
"execution_count": 47,
"id": "e30134f9-5110-421d-8f71-1bef25e7ef17",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
"<div>\n",
"<style scoped>\n",
" .dataframe tbody tr th:only-of-type {\n",
" vertical-align: middle;\n",
" }\n",
"\n",
" .dataframe tbody tr th {\n",
" vertical-align: top;\n",
" }\n",
"\n",
" .dataframe thead th {\n",
" text-align: right;\n",
" }\n",
"</style>\n",
"<table border=\"1\" class=\"dataframe\">\n",
" <thead>\n",
" <tr style=\"text-align: right;\">\n",
" <th></th>\n",
" <th>code</th>\n",
" <th>m_nDate</th>\n",
" <th>kurto</th>\n",
" </tr>\n",
" </thead>\n",
" <tbody>\n",
" <tr>\n",
" <th>0</th>\n",
" <td>000400.SZ</td>\n",
" <td>2013-01-04</td>\n",
" <td>-0.317991</td>\n",
" </tr>\n",
" <tr>\n",
" <th>1</th>\n",
" <td>000400.SZ</td>\n",
" <td>2013-01-07</td>\n",
" <td>0.790872</td>\n",
" </tr>\n",
" <tr>\n",
" <th>2</th>\n",
" <td>000400.SZ</td>\n",
" <td>2013-01-08</td>\n",
" <td>0.655005</td>\n",
" </tr>\n",
" <tr>\n",
" <th>3</th>\n",
" <td>000400.SZ</td>\n",
" <td>2013-01-09</td>\n",
" <td>0.965054</td>\n",
" </tr>\n",
" <tr>\n",
" <th>4</th>\n",
" <td>000400.SZ</td>\n",
" <td>2013-01-10</td>\n",
" <td>-0.116488</td>\n",
" </tr>\n",
" <tr>\n",
" <th>...</th>\n",
" <td>...</td>\n",
" <td>...</td>\n",
" <td>...</td>\n",
" </tr>\n",
" <tr>\n",
" <th>154948</th>\n",
" <td>688396.SH</td>\n",
" <td>2022-07-04</td>\n",
" <td>-15.420192</td>\n",
" </tr>\n",
" <tr>\n",
" <th>154949</th>\n",
" <td>688396.SH</td>\n",
" <td>2022-07-05</td>\n",
" <td>-15.426922</td>\n",
" </tr>\n",
" <tr>\n",
" <th>154950</th>\n",
" <td>688396.SH</td>\n",
" <td>2022-07-06</td>\n",
" <td>-15.389434</td>\n",
" </tr>\n",
" <tr>\n",
" <th>154951</th>\n",
" <td>688396.SH</td>\n",
" <td>2022-07-07</td>\n",
" <td>-15.411602</td>\n",
" </tr>\n",
" <tr>\n",
" <th>154952</th>\n",
" <td>688396.SH</td>\n",
" <td>2022-07-08</td>\n",
" <td>-15.401453</td>\n",
" </tr>\n",
" </tbody>\n",
"</table>\n",
"<p>154953 rows × 3 columns</p>\n",
"</div>"
],
"text/plain": [
" code m_nDate kurto\n",
"0 000400.SZ 2013-01-04 -0.317991\n",
"1 000400.SZ 2013-01-07 0.790872\n",
"2 000400.SZ 2013-01-08 0.655005\n",
"3 000400.SZ 2013-01-09 0.965054\n",
"4 000400.SZ 2013-01-10 -0.116488\n",
"... ... ... ...\n",
"154948 688396.SH 2022-07-04 -15.420192\n",
"154949 688396.SH 2022-07-05 -15.426922\n",
"154950 688396.SH 2022-07-06 -15.389434\n",
"154951 688396.SH 2022-07-07 -15.411602\n",
"154952 688396.SH 2022-07-08 -15.401453\n",
"\n",
"[154953 rows x 3 columns]"
]
},
"execution_count": 47,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"sess.run(\"m_table\")"
]
},
{
"cell_type": "code",
"execution_count": 51,
"id": "947e3346-15f6-4fb5-b2d6-b97b013a3b36",
"metadata": {},
"outputs": [],
"source": [
"code = \"\"\"\n",
" // 保证创建新的分区表不会和已经存在表冲突\n",
" if (existsTable(\"{ddb_daily_path}\", \"{partition_tbl_name}\")) {{\n",
" dropTable({ddb_daily_dbname}, \"{partition_tbl_name}\");\n",
" }}\n",
"\n",
" {partition_tbl_name} = createPartitionedTable(\n",
" dbHandle = {ddb_daily_dbname},\n",
" table = {memory_tbl_name}, \n",
" \"{partition_tbl_name}\",\n",
" partitionColumns = 'code',\n",
" compressMethods = {{'m_nDate' : 'delta'}},\n",
" sortColumns = `code`m_nDate\n",
" );\n",
"\"\"\".format(\n",
" ddb_daily_path = \"A\",\n",
" ddb_daily_dbname = \"B\",\n",
" partition_tbl_name = \"C\",\n",
" memory_tbl_name = \"D\",\n",
")"
]
},
{
"cell_type": "code",
"execution_count": 53,
"id": "5d758c68-301a-47a7-9cd2-b7dd7edf1a55",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"('\\n'\n",
" ' // 保证创建新的分区表不会和已经存在表冲突\\n'\n",
" ' if (existsTable(\"A\", \"C\")) {\\n'\n",
" ' dropTable(B, \"C\");\\n'\n",
" ' }\\n'\n",
" '\\n'\n",
" ' C = createPartitionedTable(\\n'\n",
" ' dbHandle = B,\\n'\n",
" ' table = D, \\n'\n",
" ' \"C\",\\n'\n",
" \" partitionColumns = 'code',\\n\"\n",
" \" compressMethods = {'m_nDate' : 'delta'},\\n\"\n",
" ' sortColumns = `code`m_nDate\\n'\n",
" ' );\\n')\n"
]
}
],
"source": [
"from pprint import pprint\n",
"pprint(code)"
]
},
{
"cell_type": "code",
"execution_count": 56,
"id": "400424d9-9c58-4417-94e4-fe1569522b03",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"{'chunkGranularity': 'TABLE',\n",
" 'chunkPath': None,\n",
" 'colDefs': name typeString typeInt comment\n",
"0 code SYMBOL 17 \n",
"1 m_nDate DATE 6 \n",
"2 kurto DOUBLE 16 ,\n",
" 'engineType': 'TSDB',\n",
" 'keepDuplicates': 'ALL',\n",
" 'partitionColumnIndex': 0,\n",
" 'partitionColumnName': 'code',\n",
" 'partitionColumnType': 17,\n",
" 'partitionSchema': 50,\n",
" 'partitionSites': None,\n",
" 'partitionType': 5,\n",
" 'partitionTypeName': 'HASH',\n",
" 'sortColumns': array(['code', 'm_nDate'], dtype=object)}\n"
]
}
],
"source": [
"pprint(\n",
" sess.run(\"\"\"\n",
" schema(loadTable(\"dfs://daily_stock_ts\", \"hft_daily_factor\"));\n",
" \"\"\")\n",
")"
]
},
{
"cell_type": "code",
"execution_count": 62,
"id": "68e74de8-359c-4c47-a361-2c006896211c",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
"<div>\n",
"<style scoped>\n",
" .dataframe tbody tr th:only-of-type {\n",
" vertical-align: middle;\n",
" }\n",
"\n",
" .dataframe tbody tr th {\n",
" vertical-align: top;\n",
" }\n",
"\n",
" .dataframe thead th {\n",
" text-align: right;\n",
" }\n",
"</style>\n",
"<table border=\"1\" class=\"dataframe\">\n",
" <thead>\n",
" <tr style=\"text-align: right;\">\n",
" <th></th>\n",
" <th>count</th>\n",
" </tr>\n",
" </thead>\n",
" <tbody>\n",
" <tr>\n",
" <th>0</th>\n",
" <td>309906</td>\n",
" </tr>\n",
" </tbody>\n",
"</table>\n",
"</div>"
],
"text/plain": [
" count\n",
"0 309906"
]
},
"execution_count": 62,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"sess.run(\"\"\"\n",
" select count(*) from loadTable(\"dfs://daily_stock_ts\", \"hft_daily_factor\");\n",
"\"\"\")"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "b1bd7605-c347-44f2-a90f-bc949cde0ef0",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.8.13"
}
},
"nbformat": 4,
"nbformat_minor": 5
}
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