Hi Uwe,
I'm quite confused by the findings, Im attaching a bunch of files
corresponding to the version and library generating the files.
On the first topic of DELTA_BINARY_PACKED. It seems it's something not well
supported on the Java side as well or my implementation is off, but I just
copied over the "CsvParquetWriter.java". I created a sample encoder based
on parquet-mr and it seems if dictionary is used, it falls back to PLAIN
instead of DELTA when the dict gets too big. Regardless what I do I can't
make it use DELTA for the attached schema.
In terms of size difference I see the issue in the resulting metadata, but
not the root cause. You will see the code is identical with just the
addition of version="2.0". This results in changing the output file
metadata from "ENC:PLAIN_DICTIONARY,PLAIN,RLE" to "ENC:RLE,PLAIN" hence
increasing the size quite substantially.
Let me know if there's anything else I can provide to help debug this one.
The second part is not critical since I can just use v1 for now, but good
to figure out why the output changes. The first part is a bit more pressing
for me since I really want to assess the difference between RLE and
DELTA_BINARY_PACKED on monotonically increasing values like a timestamp,
ticking at a constant rate.
On Sun, May 13, 2018 at 11:58 AM, Uwe L. Korn <uw...@xhochy.com> wrote:
> Hello Feras,
>
> `DELTA_BINARY_PACKED` is at the moment only implemented in parquet-cpp on
> the read path. The necessary encoder implementation for this code is
> missing at the moment.
>
> The change in file size is something I also don't understand. The only
> difference between the two versions is that with version 2, we encode
> uint32 columns in version 1 as INT64 whereas in version two, we can encode
> them as UINT32. This type was not available in version 1. It would be nice,
> if you could narrow down the issue to e.g. the column which causes the
> increase in size. You might also use the Java parquet-tools or parquet-cli
> to inspect the size statistics of the parts of the individual Parquet file.
>
> Uwe
>
> On Fri, May 11, 2018, at 3:07 AM, Feras Salim wrote:
> > Hi, I was wondering if I'm missing something or currently the
> > `DELTA_BINARY_PACKED` is only available for reading when it comes to
> > parquet files, I can't find a way for the writer to encode timestamp data
> > with `DELTA_BINARY_PACKED`, furthermore I seem to get about 10% increase
> in
> > final file size when I change from ver 1 to ver 2 without changing
> anything
> > else about the schema or data.
>
file: file:/Users/feras/Desktop/SPY_nodict_java.parquet
creator: parquet-mr version 1.10.0 (build
031a6654009e3b82020012a18434c582bd74c73a)
file schema: m
--------------------------------------------------------------------------------
date: REQUIRED INT64 O:TIMESTAMP_MILLIS R:0 D:0
type: REQUIRED BINARY R:0 D:0
ticker: REQUIRED BINARY R:0 D:0
price: REQUIRED INT32 R:0 D:0
size: REQUIRED INT32 R:0 D:0
exchange: REQUIRED BINARY R:0 D:0
conditions: REQUIRED BINARY R:0 D:0
row group 1: RC:2340100 TS:134648137 OFFSET:4
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:4 SZ:18722040/18722040/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
type: BINARY UNCOMPRESSED DO:0 FPO:18722044 SZ:31300350/31300350/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
ticker: BINARY UNCOMPRESSED DO:0 FPO:50022394 SZ:16381482/16381482/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
price: INT32 UNCOMPRESSED DO:0 FPO:66403876 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
size: INT32 UNCOMPRESSED DO:0 FPO:75764751 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
exchange: BINARY UNCOMPRESSED DO:0 FPO:85125626 SZ:21439994/21439994/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
conditions: BINARY UNCOMPRESSED DO:0 FPO:106565620 SZ:28082521/28082521/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
row group 2: RC:2340100 TS:134572689 OFFSET:134648141
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:134648141 SZ:18722040/18722040/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
type: BINARY UNCOMPRESSED DO:0 FPO:153370181 SZ:31248705/31248705/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
ticker: BINARY UNCOMPRESSED DO:0 FPO:184618886 SZ:16381482/16381482/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
price: INT32 UNCOMPRESSED DO:0 FPO:201000368 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
size: INT32 UNCOMPRESSED DO:0 FPO:210361243 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
exchange: BINARY UNCOMPRESSED DO:0 FPO:219722118 SZ:21416191/21416191/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
conditions: BINARY UNCOMPRESSED DO:0 FPO:241138309 SZ:28082521/28082521/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
row group 3: RC:2340100 TS:134566071 OFFSET:269220830
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:269220830 SZ:18722040/18722040/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
type: BINARY UNCOMPRESSED DO:0 FPO:287942870 SZ:31298597/31298597/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
ticker: BINARY UNCOMPRESSED DO:0 FPO:319241467 SZ:16381482/16381482/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
price: INT32 UNCOMPRESSED DO:0 FPO:335622949 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
size: INT32 UNCOMPRESSED DO:0 FPO:344983824 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
exchange: BINARY UNCOMPRESSED DO:0 FPO:354344699 SZ:21359681/21359681/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
conditions: BINARY UNCOMPRESSED DO:0 FPO:375704380 SZ:28082521/28082521/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
row group 4: RC:2340100 TS:134625251 OFFSET:403786901
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:403786901 SZ:18722040/18722040/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
type: BINARY UNCOMPRESSED DO:0 FPO:422508941 SZ:31331647/31331647/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
ticker: BINARY UNCOMPRESSED DO:0 FPO:453840588 SZ:16381482/16381482/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
price: INT32 UNCOMPRESSED DO:0 FPO:470222070 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
size: INT32 UNCOMPRESSED DO:0 FPO:479582945 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
exchange: BINARY UNCOMPRESSED DO:0 FPO:488943820 SZ:21385811/21385811/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
conditions: BINARY UNCOMPRESSED DO:0 FPO:510329631 SZ:28082521/28082521/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
row group 5: RC:2340100 TS:134609900 OFFSET:538412152
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:538412152 SZ:18722040/18722040/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
type: BINARY UNCOMPRESSED DO:0 FPO:557134192 SZ:31303657/31303657/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
ticker: BINARY UNCOMPRESSED DO:0 FPO:588437849 SZ:16381482/16381482/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
price: INT32 UNCOMPRESSED DO:0 FPO:604819331 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
size: INT32 UNCOMPRESSED DO:0 FPO:614180206 SZ:9360875/9360875/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
exchange: BINARY UNCOMPRESSED DO:0 FPO:623541081 SZ:21398450/21398450/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
conditions: BINARY UNCOMPRESSED DO:0 FPO:644939531 SZ:28082521/28082521/1.00
VC:2340100 ENC:BIT_PACKED,PLAIN
row group 6: RC:863879 TS:49763046 OFFSET:673022052
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:673022052 SZ:6911513/6911513/1.00
VC:863879 ENC:BIT_PACKED,PLAIN
type: BINARY UNCOMPRESSED DO:0 FPO:679933565 SZ:11570893/11570893/1.00
VC:863879 ENC:BIT_PACKED,PLAIN
ticker: BINARY UNCOMPRESSED DO:0 FPO:691504458 SZ:6047445/6047445/1.00
VC:863879 ENC:BIT_PACKED,PLAIN
price: INT32 UNCOMPRESSED DO:0 FPO:697551903 SZ:3455726/3455726/1.00
VC:863879 ENC:BIT_PACKED,PLAIN
size: INT32 UNCOMPRESSED DO:0 FPO:701007629 SZ:3455726/3455726/1.00
VC:863879 ENC:BIT_PACKED,PLAIN
exchange: BINARY UNCOMPRESSED DO:0 FPO:704463355 SZ:7954707/7954707/1.00
VC:863879 ENC:BIT_PACKED,PLAIN
conditions: BINARY UNCOMPRESSED DO:0 FPO:712418062 SZ:10367036/10367036/1.00
VC:863879 ENC:BIT_PACKED,PLAIN
file: file:/Users/feras/Desktop/SPY.gz.v2.parquet
creator: parquet-cpp version 1.4.0
extra: pandas = {"index_columns": ["Date_Timestamp"],
"column_indexes": [{"name": null, "pandas_type": "unicode", "metadata":
{"encoding": "UTF-8"}, "numpy_type": "object", "field_name": null}],
"pandas_version": "0.22.0", "columns": [{"name": "EventType", "pandas_type":
"categorical", "metadata": {"ordered": false, "num_categories": 7},
"numpy_type": "int8", "field_name": "EventType"}, {"name": "Price",
"pandas_type": "float64", "metadata": null, "numpy_type": "float64",
"field_name": "Price"}, {"name": "Quantity", "pandas_type": "int32",
"metadata": null, "numpy_type": "int32", "field_name": "Quantity"}, {"name":
"Exchange", "pandas_type": "categorical", "metadata": {"ordered": false,
"num_categories": 13}, "numpy_type": "int8", "field_name": "Exchange"},
{"name": "Conditions", "pandas_type": "categorical", "metadata": {"ordered":
false, "num_categories": 44}, "numpy_type": "int8", "field_name":
"Conditions"}, {"name": "Date_Timestamp", "pandas_type": "datetime",
"metadata": null, "numpy_type": "datetime64[ns]", "field_name":
"Date_Timestamp"}]}
file schema: schema
--------------------------------------------------------------------------------
EventType: OPTIONAL BINARY O:UTF8 R:0 D:1
Price: OPTIONAL DOUBLE R:0 D:1
Quantity: OPTIONAL INT32 R:0 D:1
Exchange: OPTIONAL BINARY O:UTF8 R:0 D:1
Conditions: OPTIONAL BINARY O:UTF8 R:0 D:1
Date_Timestamp: OPTIONAL INT64 O:TIMESTAMP_MILLIS R:0 D:1
row group 1: RC:12564380 TS:26780923 OFFSET:4
--------------------------------------------------------------------------------
EventType: BINARY GZIP DO:0 FPO:4 SZ:1958899/168054889/85.79 VC:12564380
ENC:RLE,PLAIN
Price: DOUBLE GZIP DO:0 FPO:1958976 SZ:2803854/100520415/35.85
VC:12564380 ENC:RLE,PLAIN
Quantity: INT32 GZIP DO:0 FPO:4762920 SZ:12627390/50259823/3.98
VC:12564380 ENC:RLE,PLAIN
Exchange: BINARY GZIP DO:0 FPO:17390387 SZ:6256981/114955481/18.37
VC:12564380 ENC:RLE,PLAIN
Conditions: BINARY GZIP DO:0 FPO:23647436 SZ:550474/150780424/273.91
VC:12564380 ENC:RLE,PLAIN
Date_Timestamp: INT64 GZIP DO:0 FPO:24197985 SZ:2583325/100520415/38.91
VC:12564380 ENC:RLE,PLAINfile: file:/Users/feras/Desktop/SPY.gz.v1.parquet
creator: parquet-cpp version 1.4.0
extra: pandas = {"index_columns": ["Date_Timestamp"],
"column_indexes": [{"name": null, "pandas_type": "unicode", "metadata":
{"encoding": "UTF-8"}, "numpy_type": "object", "field_name": null}],
"pandas_version": "0.22.0", "columns": [{"name": "EventType", "pandas_type":
"categorical", "metadata": {"ordered": false, "num_categories": 7},
"numpy_type": "int8", "field_name": "EventType"}, {"name": "Price",
"pandas_type": "float64", "metadata": null, "numpy_type": "float64",
"field_name": "Price"}, {"name": "Quantity", "pandas_type": "int32",
"metadata": null, "numpy_type": "int32", "field_name": "Quantity"}, {"name":
"Exchange", "pandas_type": "categorical", "metadata": {"ordered": false,
"num_categories": 13}, "numpy_type": "int8", "field_name": "Exchange"},
{"name": "Conditions", "pandas_type": "categorical", "metadata": {"ordered":
false, "num_categories": 44}, "numpy_type": "int8", "field_name":
"Conditions"}, {"name": "Date_Timestamp", "pandas_type": "datetime",
"metadata": null, "numpy_type": "datetime64[ns]", "field_name":
"Date_Timestamp"}]}
file schema: schema
--------------------------------------------------------------------------------
EventType: OPTIONAL BINARY O:UTF8 R:0 D:1
Price: OPTIONAL DOUBLE R:0 D:1
Quantity: OPTIONAL INT32 R:0 D:1
Exchange: OPTIONAL BINARY O:UTF8 R:0 D:1
Conditions: OPTIONAL BINARY O:UTF8 R:0 D:1
Date_Timestamp: OPTIONAL INT64 O:TIMESTAMP_MILLIS R:0 D:1
row group 1: RC:12564380 TS:22128787 OFFSET:4
--------------------------------------------------------------------------------
EventType: BINARY GZIP DO:4 FPO:93 SZ:1037494/4727557/4.56 VC:12564380
ENC:PLAIN_DICTIONARY,PLAIN,RLE
Price: DOUBLE GZIP DO:1037572 FPO:1038252 SZ:2144124/12263463/5.72
VC:12564380 ENC:PLAIN_DICTIONARY,PLAIN,RLE
Quantity: INT32 GZIP DO:3181790 FPO:3191180 SZ:11836165/18356783/1.55
VC:12564380 ENC:PLAIN_DICTIONARY,PLAIN,RLE
Exchange: BINARY GZIP DO:15018038 FPO:15018157 SZ:3761153/6211788/1.65
VC:12564380 ENC:PLAIN_DICTIONARY,PLAIN,RLE
Conditions: BINARY GZIP DO:18779265 FPO:18779435 SZ:181943/480623/2.64
VC:12564380 ENC:PLAIN_DICTIONARY,PLAIN,RLE
Date_Timestamp: INT64 GZIP DO:18961287 FPO:19175098 SZ:3167908/88781159/28.03
VC:12564380 ENC:PLAIN_DICTIONARY,PLAIN,RLEfile: file:/Users/feras/Desktop/SPY_dict_java.parquet
creator: parquet-mr version 1.10.0 (build
031a6654009e3b82020012a18434c582bd74c73a)
file schema: m
--------------------------------------------------------------------------------
date: REQUIRED INT64 O:TIMESTAMP_MILLIS R:0 D:0
type: REQUIRED BINARY R:0 D:0
ticker: REQUIRED BINARY R:0 D:0
price: REQUIRED INT32 R:0 D:0
size: REQUIRED INT32 R:0 D:0
exchange: REQUIRED BINARY R:0 D:0
conditions: REQUIRED BINARY R:0 D:0
row group 1: RC:2340100 TS:134648137 OFFSET:4
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:4 SZ:18722040/18722040/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
type: BINARY UNCOMPRESSED DO:0 FPO:18722044 SZ:31300350/31300350/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
ticker: BINARY UNCOMPRESSED DO:0 FPO:50022394 SZ:16381482/16381482/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
price: INT32 UNCOMPRESSED DO:0 FPO:66403876 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
size: INT32 UNCOMPRESSED DO:0 FPO:75764751 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
exchange: BINARY UNCOMPRESSED DO:0 FPO:85125626 SZ:21439994/21439994/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
conditions: BINARY UNCOMPRESSED DO:0 FPO:106565620 SZ:28082521/28082521/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
row group 2: RC:2340100 TS:134572689 OFFSET:134648141
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:134648141 SZ:18722040/18722040/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
type: BINARY UNCOMPRESSED DO:0 FPO:153370181 SZ:31248705/31248705/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
ticker: BINARY UNCOMPRESSED DO:0 FPO:184618886 SZ:16381482/16381482/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
price: INT32 UNCOMPRESSED DO:0 FPO:201000368 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
size: INT32 UNCOMPRESSED DO:0 FPO:210361243 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
exchange: BINARY UNCOMPRESSED DO:0 FPO:219722118 SZ:21416191/21416191/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
conditions: BINARY UNCOMPRESSED DO:0 FPO:241138309 SZ:28082521/28082521/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
row group 3: RC:2340100 TS:134566071 OFFSET:269220830
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:269220830 SZ:18722040/18722040/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
type: BINARY UNCOMPRESSED DO:0 FPO:287942870 SZ:31298597/31298597/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
ticker: BINARY UNCOMPRESSED DO:0 FPO:319241467 SZ:16381482/16381482/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
price: INT32 UNCOMPRESSED DO:0 FPO:335622949 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
size: INT32 UNCOMPRESSED DO:0 FPO:344983824 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
exchange: BINARY UNCOMPRESSED DO:0 FPO:354344699 SZ:21359681/21359681/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
conditions: BINARY UNCOMPRESSED DO:0 FPO:375704380 SZ:28082521/28082521/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
row group 4: RC:2340100 TS:134625251 OFFSET:403786901
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:403786901 SZ:18722040/18722040/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
type: BINARY UNCOMPRESSED DO:0 FPO:422508941 SZ:31331647/31331647/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
ticker: BINARY UNCOMPRESSED DO:0 FPO:453840588 SZ:16381482/16381482/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
price: INT32 UNCOMPRESSED DO:0 FPO:470222070 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
size: INT32 UNCOMPRESSED DO:0 FPO:479582945 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
exchange: BINARY UNCOMPRESSED DO:0 FPO:488943820 SZ:21385811/21385811/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
conditions: BINARY UNCOMPRESSED DO:0 FPO:510329631 SZ:28082521/28082521/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
row group 5: RC:2340100 TS:134609900 OFFSET:538412152
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:538412152 SZ:18722040/18722040/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
type: BINARY UNCOMPRESSED DO:0 FPO:557134192 SZ:31303657/31303657/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
ticker: BINARY UNCOMPRESSED DO:0 FPO:588437849 SZ:16381482/16381482/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
price: INT32 UNCOMPRESSED DO:0 FPO:604819331 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
size: INT32 UNCOMPRESSED DO:0 FPO:614180206 SZ:9360875/9360875/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
exchange: BINARY UNCOMPRESSED DO:0 FPO:623541081 SZ:21398450/21398450/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
conditions: BINARY UNCOMPRESSED DO:0 FPO:644939531 SZ:28082521/28082521/1.00
VC:2340100 ENC:PLAIN,BIT_PACKED
row group 6: RC:863879 TS:49763046 OFFSET:673022052
--------------------------------------------------------------------------------
date: INT64 UNCOMPRESSED DO:0 FPO:673022052 SZ:6911513/6911513/1.00
VC:863879 ENC:PLAIN,BIT_PACKED
type: BINARY UNCOMPRESSED DO:0 FPO:679933565 SZ:11570893/11570893/1.00
VC:863879 ENC:PLAIN,BIT_PACKED
ticker: BINARY UNCOMPRESSED DO:0 FPO:691504458 SZ:6047445/6047445/1.00
VC:863879 ENC:PLAIN,BIT_PACKED
price: INT32 UNCOMPRESSED DO:0 FPO:697551903 SZ:3455726/3455726/1.00
VC:863879 ENC:PLAIN,BIT_PACKED
size: INT32 UNCOMPRESSED DO:0 FPO:701007629 SZ:3455726/3455726/1.00
VC:863879 ENC:PLAIN,BIT_PACKED
exchange: BINARY UNCOMPRESSED DO:0 FPO:704463355 SZ:7954707/7954707/1.00
VC:863879 ENC:PLAIN,BIT_PACKED
conditions: BINARY UNCOMPRESSED DO:0 FPO:712418062 SZ:10367036/10367036/1.00
VC:863879 ENC:PLAIN,BIT_PACKED
