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ogr_parquet.py
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#!/usr/bin/env pytest
# -*- coding: utf-8 -*-
###############################################################################
# $Id$
#
# Project: GDAL/OGR Test Suite
# Purpose: Test read/write functionality for OGR Parquet driver.
# Author: Even Rouault <even dot rouault at spatialys.com>
#
###############################################################################
# Copyright (c) 2022, Planet Labs
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################
import json
import math
import gdaltest
import pytest
from osgeo import gdal, ogr, osr
pytestmark = pytest.mark.require_driver("Parquet")
###############################################################################
# Validate against GeoParquet json schema
def _validate_json_output(instance):
try:
from jsonschema import validate
except ImportError:
pytest.skip("jsonschema module not available")
import json
schema = json.loads(open("data/parquet/schema.json", "rb").read())
validate(instance=instance, schema=schema)
###############################################################################
# Read invalid file
def test_ogr_parquet_invalid():
with pytest.raises(Exception):
ogr.Open("data/parquet/invalid.parquet")
###############################################################################
# Basic tests
def _check_test_parquet(
filename,
expect_fast_feature_count=True,
expect_fast_get_extent=True,
expect_ignore_fields=True,
):
with gdaltest.config_option("OGR_PARQUET_BATCH_SIZE", "2"):
ds = gdal.OpenEx(filename)
assert ds is not None, "cannot open dataset"
assert ds.TestCapability("foo") == 0
assert ds.GetLayerCount() == 1, "bad layer count"
assert ds.GetLayer(-1) is None
assert ds.GetLayer(1) is None
lyr = ds.GetLayer(0)
assert lyr is not None
lyr_defn = lyr.GetLayerDefn()
assert lyr_defn.GetGeomFieldCount() == 1
assert lyr_defn.GetGeomFieldDefn(0).GetName() == "geometry"
srs = lyr_defn.GetGeomFieldDefn(0).GetSpatialRef()
assert srs is not None
assert srs.GetAuthorityCode(None) == "4326"
assert lyr_defn.GetGeomFieldDefn(0).GetType() == ogr.wkbPoint
assert lyr_defn.GetFieldCount() == 71
got_field_defns = [
(
lyr_defn.GetFieldDefn(i).GetName(),
ogr.GetFieldTypeName(lyr_defn.GetFieldDefn(i).GetType()),
ogr.GetFieldSubTypeName(lyr_defn.GetFieldDefn(i).GetSubType()),
lyr_defn.GetFieldDefn(i).GetWidth(),
lyr_defn.GetFieldDefn(i).GetPrecision(),
)
for i in range(lyr_defn.GetFieldCount())
]
# import pprint
# pprint.pprint(got_field_defns)
expected_field_defns = [
("boolean", "Integer", "Boolean", 0, 0),
("uint8", "Integer", "None", 0, 0),
("int8", "Integer", "None", 0, 0),
("uint16", "Integer", "None", 0, 0),
("int16", "Integer", "Int16", 0, 0),
("uint32", "Integer64", "None", 0, 0),
("int32", "Integer", "None", 0, 0),
("uint64", "Real", "None", 0, 0),
("int64", "Integer64", "None", 0, 0),
("float32", "Real", "Float32", 0, 0),
("float64", "Real", "None", 0, 0),
("string", "String", "None", 0, 0),
("large_string", "String", "None", 0, 0),
("timestamp_ms_gmt", "DateTime", "None", 0, 0),
("timestamp_ms_gmt_plus_2", "DateTime", "None", 0, 0),
("timestamp_ms_gmt_minus_0215", "DateTime", "None", 0, 0),
("timestamp_s_no_tz", "DateTime", "None", 0, 0),
("time32_s", "Time", "None", 0, 0),
("time32_ms", "Time", "None", 0, 0),
("time64_us", "Integer64", "None", 0, 0),
("time64_ns", "Integer64", "None", 0, 0),
("date32", "Date", "None", 0, 0),
("date64", "Date", "None", 0, 0),
("binary", "Binary", "None", 0, 0),
("large_binary", "Binary", "None", 0, 0),
("fixed_size_binary", "Binary", "None", 2, 0),
("decimal128", "Real", "None", 7, 3),
("decimal256", "Real", "None", 7, 3),
("list_boolean", "IntegerList", "Boolean", 0, 0),
("list_uint8", "IntegerList", "None", 0, 0),
("list_int8", "IntegerList", "None", 0, 0),
("list_uint16", "IntegerList", "None", 0, 0),
("list_int16", "IntegerList", "None", 0, 0),
("list_uint32", "Integer64List", "None", 0, 0),
("list_int32", "IntegerList", "None", 0, 0),
("list_uint64", "RealList", "None", 0, 0),
("list_int64", "Integer64List", "None", 0, 0),
("list_float32", "RealList", "Float32", 0, 0),
("list_float64", "RealList", "None", 0, 0),
("list_string", "StringList", "None", 0, 0),
("fixed_size_list_boolean", "IntegerList", "Boolean", 0, 0),
("fixed_size_list_uint8", "IntegerList", "None", 0, 0),
("fixed_size_list_int8", "IntegerList", "None", 0, 0),
("fixed_size_list_uint16", "IntegerList", "None", 0, 0),
("fixed_size_list_int16", "IntegerList", "None", 0, 0),
("fixed_size_list_uint32", "Integer64List", "None", 0, 0),
("fixed_size_list_int32", "IntegerList", "None", 0, 0),
("fixed_size_list_uint64", "RealList", "None", 0, 0),
("fixed_size_list_int64", "Integer64List", "None", 0, 0),
("fixed_size_list_float32", "RealList", "Float32", 0, 0),
("fixed_size_list_float64", "RealList", "None", 0, 0),
("fixed_size_list_string", "StringList", "None", 0, 0),
("struct_field.a", "Integer64", "None", 0, 0),
("struct_field.b", "Real", "None", 0, 0),
("struct_field.c.d", "String", "None", 0, 0),
("struct_field.c.f", "String", "None", 0, 0),
("struct_field.h", "Integer64List", "None", 0, 0),
("struct_field.i", "Integer64", "None", 0, 0),
("map_boolean", "String", "JSON", 0, 0),
("map_uint8", "String", "JSON", 0, 0),
("map_int8", "String", "JSON", 0, 0),
("map_uint16", "String", "JSON", 0, 0),
("map_int16", "String", "JSON", 0, 0),
("map_uint32", "String", "JSON", 0, 0),
("map_int32", "String", "JSON", 0, 0),
("map_uint64", "String", "JSON", 0, 0),
("map_int64", "String", "JSON", 0, 0),
("map_float32", "String", "JSON", 0, 0),
("map_float64", "String", "JSON", 0, 0),
("map_string", "String", "JSON", 0, 0),
("dict", "Integer", "None", 0, 0),
]
assert got_field_defns == expected_field_defns
if expect_fast_feature_count:
assert lyr.TestCapability(ogr.OLCFastFeatureCount) == 1
assert lyr.TestCapability(ogr.OLCStringsAsUTF8) == 1
if expect_fast_get_extent:
assert lyr.TestCapability(ogr.OLCFastGetExtent) == 1
if expect_ignore_fields:
assert lyr.TestCapability(ogr.OLCIgnoreFields) == 1
assert lyr.GetFeatureCount() == 5
assert lyr.GetExtent() == (0.0, 4.0, 2.0, 2.0)
assert lyr.GetExtent(geom_field=0) == (0.0, 4.0, 2.0, 2.0)
with pytest.raises(Exception):
lyr.GetExtent(geom_field=-1)
with pytest.raises(Exception):
lyr.GetExtent(geom_field=1)
assert ds.GetFieldDomainNames() == ["dictDomain"]
assert ds.GetFieldDomain("not_existing") is None
for _ in range(2):
domain = ds.GetFieldDomain("dictDomain")
assert domain is not None
assert domain.GetName() == "dictDomain"
assert domain.GetDescription() == ""
assert domain.GetDomainType() == ogr.OFDT_CODED
assert domain.GetFieldType() == ogr.OFTInteger
assert domain.GetFieldSubType() == ogr.OFSTNone
assert domain.GetEnumeration() == {"0": "foo", "1": "bar", "2": "baz"}
f = lyr.GetNextFeature()
assert f.GetFID() == 0
assert f["boolean"]
assert f["uint8"] == 1
assert f["int8"] == -2
assert f["uint16"] == 1
assert f["int16"] == -20000
assert f["uint32"] == 1
assert f["int32"] == -2000000000
assert f["uint64"] == 1
assert f["int64"] == -200000000000
assert f["float32"] == 1.5
assert f["float64"] == 1.5
assert f["string"] == "abcd"
assert f["large_string"] == "abcd"
assert f["timestamp_ms_gmt"] == "2019/01/01 14:00:00.500+00"
assert f["timestamp_ms_gmt_plus_2"] == "2019/01/01 14:00:00.500+02"
assert f["timestamp_ms_gmt_minus_0215"] == "2019/01/01 14:00:00.500-0215"
assert f["timestamp_s_no_tz"] == "2019/01/01 14:00:00"
assert f["time32_s"] == "01:02:03"
assert f["time32_ms"] == "01:02:03.456"
assert f["time64_us"] == 3723000000
assert f["time64_ns"] == 3723000000456
assert f["date32"] == "1970/01/02"
assert f["date64"] == "1970/01/02"
assert f["binary"] == "0001"
assert f["large_binary"] == "0001"
assert f["fixed_size_binary"] == "0001"
assert f["decimal128"] == 1234.567
assert f["decimal256"] == 1234.567
assert f["list_boolean"] == []
assert f["list_uint8"] == []
assert f["list_int8"] == []
assert f["list_uint16"] == []
assert f["list_int16"] == []
assert f["list_uint32"] == []
assert f["list_int32"] == []
assert f["list_uint64"] == []
assert f["list_int64"] == []
assert f["list_float32"] == []
assert f["list_float64"] == []
assert f["list_string"] is None
assert f["fixed_size_list_boolean"] == [1, 0]
assert f["fixed_size_list_uint8"] == [0, 1]
assert f["fixed_size_list_int8"] == [0, 1]
assert f["fixed_size_list_uint16"] == [0, 1]
assert f["fixed_size_list_int16"] == [0, 1]
assert f["fixed_size_list_uint32"] == [0, 1]
assert f["fixed_size_list_int32"] == [0, 1]
assert f["fixed_size_list_uint64"] == [0, 1]
assert f["fixed_size_list_int64"] == [0, 1]
assert f["fixed_size_list_float32"][0] == 0
assert math.isnan(f["fixed_size_list_float32"][1])
assert f["fixed_size_list_float64"][0] == 0
assert math.isnan(f["fixed_size_list_float64"][1])
assert f["fixed_size_list_string"] == ["a", "b"]
assert f["struct_field.a"] == 1
assert f["struct_field.b"] == 2.5
assert f["struct_field.c.d"] == "e"
assert f["struct_field.c.f"] == "g"
assert f["struct_field.h"] == [5, 6]
assert f["struct_field.i"] == 3
assert f["map_boolean"] == '{"x":null,"y":true}'
assert f["map_uint8"] == '{"x":1,"y":null}'
assert f["map_int8"] == '{"x":1,"y":null}'
assert f["map_uint16"] == '{"x":1,"y":null}'
assert f["map_int16"] == '{"x":1,"y":null}'
assert f["map_uint32"] == '{"x":4000000000,"y":null}'
assert f["map_int32"] == '{"x":2000000000,"y":null}'
assert f["map_uint64"] == '{"x":4000000000000.0,"y":null}'
assert f["map_int64"] == '{"x":-2000000000000,"y":null}'
assert f["map_float32"] == '{"x":1.5,"y":null}'
assert f["map_float64"] == '{"x":1.5,"y":null}'
assert f["map_string"] == '{"x":"x_val","y":null}'
assert f["dict"] == 0
assert f.GetGeometryRef().ExportToWkt() == "POINT (0 2)"
f = lyr.GetNextFeature()
assert f.GetFID() == 1
assert not f["boolean"]
assert f["uint8"] == 2
assert f.GetGeometryRef() is None
f = lyr.GetNextFeature()
assert f.GetFID() == 2
assert f["uint8"] is None
assert f.GetGeometryRef().ExportToWkt() == "POINT (2 2)"
f = lyr.GetNextFeature()
assert f.GetFID() == 3
assert f["uint8"] == 4
assert f.GetGeometryRef().ExportToWkt() == "POINT (3 2)"
f = lyr.GetNextFeature()
assert f.GetFID() == 4
assert f["uint8"] == 5
assert f.GetGeometryRef().ExportToWkt() == "POINT (4 2)"
assert lyr.GetNextFeature() is None
assert lyr.GetNextFeature() is None
lyr.ResetReading()
f = lyr.GetNextFeature()
assert f.GetFID() == 0
lyr.SetSpatialFilterRect(4, 2, 4, 2)
lyr.ResetReading()
f = lyr.GetNextFeature()
assert f.GetFID() == 4
lyr.SetSpatialFilterRect(-100, -100, -100, -100)
lyr.ResetReading()
assert lyr.GetNextFeature() is None
lyr.SetSpatialFilter(None)
if expect_ignore_fields:
# Ignore just one member of a structure
assert lyr.SetIgnoredFields(["struct_field.a"]) == ogr.OGRERR_NONE
lyr.ResetReading()
f = lyr.GetNextFeature()
assert f["fixed_size_list_string"] == ["a", "b"]
assert f["struct_field.a"] is None
assert f["struct_field.b"] == 2.5
assert f["map_boolean"] == '{"x":null,"y":true}'
assert f.GetGeometryRef().ExportToWkt() == "POINT (0 2)"
# Ignore all members of a structure
assert (
lyr.SetIgnoredFields(
[
"struct_field.a",
"struct_field.b",
"struct_field.c.d",
"struct_field.c.f",
"struct_field.h",
"struct_field.i",
]
)
== ogr.OGRERR_NONE
)
lyr.ResetReading()
f = lyr.GetNextFeature()
assert f["fixed_size_list_string"] == ["a", "b"]
assert f["struct_field.a"] is None
assert f["struct_field.b"] is None
assert f["struct_field.c.d"] is None
assert f["struct_field.c.f"] is None
assert f["struct_field.h"] is None
assert f["struct_field.i"] is None
assert f["map_boolean"] == '{"x":null,"y":true}'
assert f.GetGeometryRef().ExportToWkt() == "POINT (0 2)"
# Ignore a map
assert lyr.SetIgnoredFields(["map_boolean"]) == ogr.OGRERR_NONE
lyr.ResetReading()
f = lyr.GetNextFeature()
assert f["fixed_size_list_string"] == ["a", "b"]
assert f["struct_field.a"] == 1
assert f["struct_field.b"] == 2.5
assert f["map_boolean"] is None
assert f["map_uint8"] == '{"x":1,"y":null}'
assert f.GetGeometryRef().ExportToWkt() == "POINT (0 2)"
# Ignore geometry
assert lyr.SetIgnoredFields(["geometry"]) == ogr.OGRERR_NONE
lyr.ResetReading()
f = lyr.GetNextFeature()
assert f["fixed_size_list_string"] == ["a", "b"]
assert f["struct_field.a"] == 1
assert f["struct_field.b"] == 2.5
assert f["map_boolean"] == '{"x":null,"y":true}'
assert f.GetGeometryRef() is None
# Cancel ignored fields
assert lyr.SetIgnoredFields([]) == ogr.OGRERR_NONE
lyr.ResetReading()
f = lyr.GetNextFeature()
assert f["fixed_size_list_string"] == ["a", "b"]
assert f["struct_field.a"] == 1
assert f["struct_field.b"] == 2.5
assert f["map_boolean"] == '{"x":null,"y":true}'
assert f.GetGeometryRef().ExportToWkt() == "POINT (0 2)"
@pytest.mark.parametrize("use_vsi", [False, True])
def test_ogr_parquet_1(use_vsi):
filename = "data/parquet/test.parquet"
if use_vsi:
vsifilename = "/vsimem/test.parquet"
gdal.FileFromMemBuffer(vsifilename, open(filename, "rb").read())
filename = vsifilename
try:
_check_test_parquet(filename)
finally:
if use_vsi:
gdal.Unlink(vsifilename)
###############################################################################
# Run test_ogrsf
def test_ogr_parquet_test_ogrsf_test():
import test_cli_utilities
if test_cli_utilities.get_test_ogrsf_path() is None:
pytest.skip()
ret = gdaltest.runexternal(
test_cli_utilities.get_test_ogrsf_path() + " -ro data/parquet/test.parquet"
)
assert "INFO" in ret
assert "ERROR" not in ret
###############################################################################
# Run test_ogrsf
def test_ogr_parquet_test_ogrsf_example():
import test_cli_utilities
if test_cli_utilities.get_test_ogrsf_path() is None:
pytest.skip()
ret = gdaltest.runexternal(
test_cli_utilities.get_test_ogrsf_path() + " -ro data/parquet/example.parquet"
)
assert "INFO" in ret
assert "ERROR" not in ret
###############################################################################
# Run test_ogrsf
def test_ogr_parquet_test_ogrsf_all_geoms():
import test_cli_utilities
if test_cli_utilities.get_test_ogrsf_path() is None:
pytest.skip()
ret = gdaltest.runexternal(
test_cli_utilities.get_test_ogrsf_path() + " -ro data/parquet/all_geoms.parquet"
)
assert "INFO" in ret
assert "ERROR" not in ret
###############################################################################
# Test write support
@pytest.mark.parametrize(
"use_vsi,row_group_size,fid", [(False, None, None), (True, 2, "fid")]
)
def test_ogr_parquet_write_from_another_dataset(use_vsi, row_group_size, fid):
outfilename = "/vsimem/out.parquet" if use_vsi else "tmp/out.parquet"
try:
layerCreationOptions = []
if row_group_size:
layerCreationOptions.append("ROW_GROUP_SIZE=" + str(row_group_size))
if fid:
layerCreationOptions.append("FID=" + fid)
gdal.VectorTranslate(
outfilename,
"data/parquet/test.parquet",
layerCreationOptions=layerCreationOptions,
)
ds = gdal.OpenEx(outfilename)
lyr = ds.GetLayer(0)
assert lyr.GetFIDColumn() == (fid if fid else "")
if fid:
f = lyr.GetFeature(4)
assert f is not None
assert f.GetFID() == 4
assert lyr.GetFeature(5) is None
lyr.SetIgnoredFields([lyr.GetLayerDefn().GetFieldDefn(0).GetName()])
f = lyr.GetFeature(4)
assert f is not None
assert f.GetFID() == 4
assert lyr.GetFeature(5) is None
lyr.SetIgnoredFields([])
if row_group_size:
num_features = lyr.GetFeatureCount()
expected_num_row_groups = int(math.ceil(num_features / row_group_size))
assert lyr.GetMetadataItem("NUM_ROW_GROUPS", "_PARQUET_") == str(
expected_num_row_groups
)
for i in range(expected_num_row_groups):
got_num_rows = lyr.GetMetadataItem(
"ROW_GROUPS[%d].NUM_ROWS" % i, "_PARQUET_"
)
if i < expected_num_row_groups - 1:
assert got_num_rows == str(row_group_size)
else:
assert got_num_rows == str(
num_features - (expected_num_row_groups - 1) * row_group_size
)
geo = lyr.GetMetadataItem("geo", "_PARQUET_METADATA_")
assert geo is not None
j = json.loads(geo)
assert j is not None
assert "version" in j
assert j["version"] == "1.0.0-beta.1"
assert "primary_column" in j
assert j["primary_column"] == "geometry"
assert "columns" in j
assert "geometry" in j["columns"]
assert "encoding" in j["columns"]["geometry"]
assert j["columns"]["geometry"]["encoding"] == "WKB"
md = lyr.GetMetadata("_PARQUET_METADATA_")
assert "geo" in md
ds = None
_check_test_parquet(outfilename)
finally:
gdal.Unlink(outfilename)
###############################################################################
# Test write support
def test_ogr_parquet_write_edge_cases():
outfilename = "/vsimem/out.parquet"
# No layer
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
assert ds is not None
assert ds.GetLayerCount() == 0
assert ds.GetLayer(0) is None
assert ds.TestCapability(ogr.ODsCCreateLayer) == 1
assert ds.TestCapability(ogr.ODsCAddFieldDomain) == 0
domain = ogr.CreateCodedFieldDomain(
"name", "desc", ogr.OFTInteger, ogr.OFSTNone, {1: "one", "2": None}
)
assert ds.AddFieldDomain(domain) == False
assert ds.GetFieldDomainNames() is None
assert ds.GetFieldDomain("foo") is None
ds = None
gdal.Unlink(outfilename)
# No field, no record
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
assert ds is not None
srs = osr.SpatialReference()
srs.ImportFromEPSG(4326)
with pytest.raises(Exception):
ds.CreateLayer("out", srs=srs, geom_type=ogr.wkbPointM)
with pytest.raises(Exception):
ds.CreateLayer(
"out", srs=srs, geom_type=ogr.wkbPoint, options=["COMPRESSION=invalid"]
)
lyr = ds.CreateLayer("out", srs=srs, geom_type=ogr.wkbPoint)
assert lyr is not None
assert ds.GetLayerCount() == 1
assert ds.GetLayer(0) is not None
assert ds.TestCapability(ogr.ODsCCreateLayer) == 0
assert ds.TestCapability(ogr.ODsCAddFieldDomain) == 1
# Test creating a second layer
with pytest.raises(Exception):
ds.CreateLayer("out2", srs=srs, geom_type=ogr.wkbPoint)
ds = None
ds = gdal.OpenEx(outfilename)
assert ds is not None
lyr = ds.GetLayer(0)
assert lyr.GetNextFeature() is None
lyr = None
ds = None
gdal.Unlink(outfilename)
# No geometry field, one record
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
assert ds is not None
lyr = ds.CreateLayer("out", geom_type=ogr.wkbNone)
assert lyr.TestCapability(ogr.OLCCreateField) == 1
assert lyr.TestCapability(ogr.OLCCreateGeomField) == 1
assert lyr.TestCapability(ogr.OLCSequentialWrite) == 1
assert lyr.TestCapability(ogr.OLCStringsAsUTF8) == 1
fld_defn = ogr.FieldDefn("foo")
fld_defn.SetNullable(False)
assert lyr.CreateField(fld_defn) == ogr.OGRERR_NONE
assert lyr is not None
f = ogr.Feature(lyr.GetLayerDefn())
with pytest.raises(Exception):
# violation of not-null constraint
assert lyr.CreateFeature(f) != ogr.OGRERR_NONE
f["foo"] = "bar"
assert lyr.CreateFeature(f) == ogr.OGRERR_NONE
assert lyr.GetFeatureCount() == 1
assert lyr.TestCapability(ogr.OLCCreateField) == 0
assert lyr.TestCapability(ogr.OLCCreateGeomField) == 0
with pytest.raises(Exception):
assert lyr.CreateField(ogr.FieldDefn("bar")) != ogr.OGRERR_NONE
with pytest.raises(Exception):
assert (
lyr.CreateGeomField(ogr.GeomFieldDefn("baz", ogr.wkbPoint))
!= ogr.OGRERR_NONE
)
ds = None
ds = gdal.OpenEx(outfilename)
assert ds is not None
lyr = ds.GetLayer(0)
assert lyr.GetNextFeature() is not None
lyr = None
ds = None
gdal.Unlink(outfilename)
###############################################################################
# Test compression support
@pytest.mark.parametrize("compression", ["uncompressed", "snappy", "zstd"])
def test_ogr_parquet_write_compression(compression):
lco = gdal.GetDriverByName("Parquet").GetMetadataItem("DS_LAYER_CREATIONOPTIONLIST")
if compression.upper() not in lco:
pytest.skip()
outfilename = "/vsimem/out.parquet"
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
options = ["FID=fid", "COMPRESSION=" + compression]
lyr = ds.CreateLayer("out", geom_type=ogr.wkbNone, options=options)
assert lyr is not None
f = ogr.Feature(lyr.GetLayerDefn())
lyr.CreateFeature(f)
lyr = None
ds = None
ds = ogr.Open(outfilename)
lyr = ds.GetLayer(0)
assert (
lyr.GetMetadataItem("ROW_GROUPS[0].COLUMNS[0].COMPRESSION", "_PARQUET_")
== compression
)
lyr = None
ds = None
gdal.Unlink(outfilename)
###############################################################################
# Test coordinate epoch support
@pytest.mark.parametrize("epsg_code", [4326, 9057]) # "WGS 84 (G1762)"
def test_ogr_parquet_coordinate_epoch(epsg_code):
outfilename = "/vsimem/out.parquet"
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
srs = osr.SpatialReference()
srs.ImportFromEPSG(epsg_code)
srs.SetCoordinateEpoch(2022.3)
ds.CreateLayer("out", geom_type=ogr.wkbPoint, srs=srs)
ds = None
ds = ogr.Open(outfilename)
assert ds is not None
lyr = ds.GetLayer(0)
assert lyr is not None
geo = lyr.GetMetadataItem("geo", "_PARQUET_METADATA_")
assert geo is not None
j = json.loads(geo)
assert j is not None
assert "columns" in j
assert "geometry" in j["columns"]
if epsg_code == 4326:
assert "crs" not in j["columns"]["geometry"]
_validate_json_output(j)
else:
assert "crs" in j["columns"]["geometry"]
assert j["columns"]["geometry"]["crs"]["type"] == "GeographicCRS"
assert "epoch" in j["columns"]["geometry"]
srs = lyr.GetSpatialRef()
assert srs is not None
assert int(srs.GetAuthorityCode(None)) == epsg_code
assert srs.GetCoordinateEpoch() == 2022.3
lyr = None
ds = None
gdal.Unlink(outfilename)
###############################################################################
# Test missing CRS member (on reading, implicitly fallback to EPSG:4326)
def test_ogr_parquet_missing_crs_member():
outfilename = "/vsimem/out.parquet"
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
with gdaltest.config_option("OGR_PARQUET_WRITE_CRS", "NO"):
ds.CreateLayer("out", geom_type=ogr.wkbPoint)
ds = None
ds = ogr.Open(outfilename)
assert ds is not None
lyr = ds.GetLayer(0)
assert lyr is not None
geo = lyr.GetMetadataItem("geo", "_PARQUET_METADATA_")
assert geo is not None
j = json.loads(geo)
assert j is not None
assert "columns" in j
assert "geometry" in j["columns"]
assert "crs" not in j["columns"]["geometry"]
srs = lyr.GetSpatialRef()
assert srs is not None
assert srs.GetAuthorityCode(None) == "4326"
lyr = None
ds = None
gdal.Unlink(outfilename)
###############################################################################
# Test writing a CRS and automatically identifying it
crs_84_wkt1 = """GEOGCS["WGS 84 (CRS84)",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["OGC","CRS84"]]"""
@pytest.mark.parametrize(
"input_definition,expected_crs",
[
("+proj=longlat +datum=WGS84", "4326"),
(crs_84_wkt1, "4326"),
("OGC:CRS84", "4326"),
("EPSG:4326", "4326"),
("EPSG:4269", "4269"),
("+proj=longlat +datum=NAD83", "4269"),
("EPSG:32631", "32631"),
("+proj=utm +zone=31 +datum=WGS84", "32631"),
("+proj=longlat +ellps=GRS80", None),
],
)
def test_ogr_parquet_crs_identification_on_write(input_definition, expected_crs):
outfilename = "/vsimem/out.parquet"
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
srs = osr.SpatialReference()
srs.SetFromUserInput(input_definition)
ds.CreateLayer("out", geom_type=ogr.wkbPoint, srs=srs)
ds = None
ds = ogr.Open(outfilename)
assert ds is not None
lyr = ds.GetLayer(0)
assert lyr is not None
geo = lyr.GetMetadataItem("geo", "_PARQUET_METADATA_")
assert geo is not None
j = json.loads(geo)
assert j is not None
assert "columns" in j
assert "geometry" in j["columns"]
if expected_crs == "4326":
assert "crs" not in j["columns"]["geometry"]
else:
assert "crs" in j["columns"]["geometry"]
if expected_crs == "4269":
_validate_json_output(j)
srs = lyr.GetSpatialRef()
assert srs is not None
assert srs.GetAuthorityCode(None) == expected_crs
lyr = None
ds = None
gdal.Unlink(outfilename)
###############################################################################
# Test EDGES option
@pytest.mark.parametrize("edges", [None, "PLANAR", "SPHERICAL"])
def test_ogr_parquet_edges(edges):
outfilename = "/vsimem/out.parquet"
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
options = []
if edges is not None:
options = ["EDGES=" + edges]
ds.CreateLayer("out", geom_type=ogr.wkbPoint, options=options)
ds = None
ds = ogr.Open(outfilename)
assert ds is not None
lyr = ds.GetLayer(0)
assert lyr is not None
if edges == "SPHERICAL":
assert lyr.GetMetadataItem("EDGES") == "SPHERICAL"
else:
assert lyr.GetMetadataItem("EDGES") is None
geo = lyr.GetMetadataItem("geo", "_PARQUET_METADATA_")
assert geo is not None
j = json.loads(geo)
assert j is not None
_validate_json_output(j)
ds = None
gdal.Unlink(outfilename)
###############################################################################
# Test geometry_types support
@pytest.mark.parametrize(
"written_geom_type,written_wkt,expected_ogr_geom_type,expected_wkts,expected_geometry_types",
[
(ogr.wkbPoint, ["POINT (1 2)"], ogr.wkbPoint, None, ["Point"]),
(
ogr.wkbLineString,
["LINESTRING (1 2,3 4)"],
ogr.wkbLineString,
None,
["LineString"],
),
(
ogr.wkbPolygon,
[
"POLYGON ((0 0,1 0,1 1,0 1,0 0))",
"POLYGON ((0 0,0 1,1 1,1 0,0 0),(0.2 0.2,0.8 0.8,0.2 0.8,0.2 0.2))",
], # winding order must be fixed
ogr.wkbPolygon,
[
"POLYGON ((0 0,1 0,1 1,0 1,0 0))",
"POLYGON ((0 0,1 0,1 1,0 1,0 0),(0.2 0.2,0.2 0.8,0.8 0.8,0.2 0.2))",
],
["Polygon"],
),
(
ogr.wkbMultiPoint,
["MULTIPOINT ((1 2))"],
ogr.wkbMultiPoint,
None,
["MultiPoint"],
),
(
ogr.wkbMultiLineString,
["MULTILINESTRING ((1 2,3 4))"],
ogr.wkbMultiLineString,
None,
["MultiLineString"],
),
(
ogr.wkbMultiPolygon,
["MULTIPOLYGON (((0 0,1 0,1 1,0 1,0 0)))"],
ogr.wkbMultiPolygon,
None,
["MultiPolygon"],
),
(
ogr.wkbGeometryCollection,
["GEOMETRYCOLLECTION (POINT (1 2))"],
ogr.wkbGeometryCollection,
None,
["GeometryCollection"],
),
(ogr.wkbPoint25D, ["POINT Z (1 2 3)"], ogr.wkbPoint25D, None, ["Point Z"]),
(ogr.wkbUnknown, ["POINT (1 2)"], ogr.wkbPoint, None, ["Point"]),
(ogr.wkbUnknown, ["POINT Z (1 2 3)"], ogr.wkbPoint25D, None, ["Point Z"]),
(
ogr.wkbUnknown,
[
"POLYGON ((0 0,0 1,1 1,1 0,0 0))",
"MULTIPOLYGON (((0 0,1 0,1 1,0 1,0 0)))",
],
ogr.wkbMultiPolygon,
[
"MULTIPOLYGON (((0 0,1 0,1 1,0 1,0 0)))",
"MULTIPOLYGON (((0 0,1 0,1 1,0 1,0 0)))",
],
["Polygon", "MultiPolygon"],
),
(
ogr.wkbUnknown,
["LINESTRING (1 2,3 4)", "MULTILINESTRING ((10 2,3 4))"],
ogr.wkbMultiLineString,
["MULTILINESTRING ((1 2,3 4))", "MULTILINESTRING ((10 2,3 4))"],
["LineString", "MultiLineString"],
),
(
ogr.wkbUnknown,
["LINESTRING Z (1 2 10,3 4 20)", "MULTILINESTRING Z ((1 2 10,3 4 20))"],
ogr.wkbMultiLineString25D,
[
"MULTILINESTRING Z ((1 2 10,3 4 20))",
"MULTILINESTRING Z ((1 2 10,3 4 20))",
],
["LineString Z", "MultiLineString Z"],
),
(
ogr.wkbUnknown,
["POINT (1 2)", "LINESTRING (1 2,3 4)"],
ogr.wkbUnknown,
None,
["Point", "LineString"],
),
(
ogr.wkbUnknown,
["LINESTRING Z (1 2 10,3 4 20)", "MULTILINESTRING ((1 2,3 4))"],
ogr.wkbMultiLineString25D,
[
"MULTILINESTRING Z ((1 2 10,3 4 20))",
"MULTILINESTRING Z ((1 2 0,3 4 0))",
],
["LineString Z", "MultiLineString"],
),
],
)
def test_ogr_parquet_geometry_types(
written_geom_type,
written_wkt,
expected_ogr_geom_type,
expected_wkts,
expected_geometry_types,
):
outfilename = "/vsimem/out.parquet"
ds = gdal.GetDriverByName("Parquet").Create(outfilename, 0, 0, 0, gdal.GDT_Unknown)
lyr = ds.CreateLayer("out", geom_type=written_geom_type)
for wkt in written_wkt:
f = ogr.Feature(lyr.GetLayerDefn())
f.SetGeometryDirectly(ogr.CreateGeometryFromWkt(wkt))
assert lyr.CreateFeature(f) == ogr.OGRERR_NONE
ds = None
ds = ogr.Open(outfilename)
assert ds is not None
lyr = ds.GetLayer(0)
assert lyr.GetGeomType() == expected_ogr_geom_type
assert lyr.GetSpatialRef() is None
if expected_wkts is None:
expected_wkts = written_wkt
for wkt in expected_wkts:
f = lyr.GetNextFeature()
assert f.GetGeometryRef().ExportToIsoWkt() == wkt
geo = lyr.GetMetadataItem("geo", "_PARQUET_METADATA_")
assert geo is not None
j = json.loads(geo)
assert j is not None
assert "columns" in j
assert "geometry" in j["columns"]
assert "geometry_types" in j["columns"]["geometry"]
assert set(j["columns"]["geometry"]["geometry_types"]) == set(
expected_geometry_types
)
if expected_geometry_types == ["LineString Z", "MultiLineString"]:
_validate_json_output(j)
ds = None
gdal.Unlink(outfilename)
###############################################################################
# Test POLYGON_ORIENTATION option