-
-
Notifications
You must be signed in to change notification settings - Fork 480
Expand file tree
/
Copy pathmiddle-pgsql.cpp
More file actions
1724 lines (1455 loc) · 52.4 KB
/
Copy pathmiddle-pgsql.cpp
File metadata and controls
1724 lines (1455 loc) · 52.4 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/**
* SPDX-License-Identifier: GPL-2.0-or-later
*
* This file is part of osm2pgsql (https://osm2pgsql.org/).
*
* Copyright (C) 2006-2023 by the osm2pgsql developer community.
* For a full list of authors see the git log.
*/
/* Implements the mid-layer processing for osm2pgsql
* using several PostgreSQL tables
*
* This layer stores data read in from the planet.osm file
* and is then read by the backend processing code to
* emit the final geometry-enabled output formats
*/
#include <array>
#include <cassert>
#include <cstdint>
#include <cstdlib>
#include <iterator>
#include <memory>
#include <stdexcept>
#include <string>
#include <unordered_map>
#include <utility>
#include <osmium/builder/osm_object_builder.hpp>
#include <osmium/memory/buffer.hpp>
#include <osmium/osm/types_from_string.hpp>
#include <nlohmann/json.hpp>
#include "format.hpp"
#include "json-writer.hpp"
#include "logging.hpp"
#include "middle-pgsql.hpp"
#include "node-locations.hpp"
#include "node-persistent-cache.hpp"
#include "options.hpp"
#include "osmtypes.hpp"
#include "pgsql-helper.hpp"
#include "util.hpp"
static bool check_bucket_index(pg_conn_t const *db_connection,
std::string const &prefix)
{
auto const res =
db_connection->exec("SELECT relname FROM pg_class"
" WHERE relkind='i'"
" AND relname = '{}_ways_nodes_bucket_idx'",
prefix);
return res.num_tuples() > 0;
}
static void send_id_list(pg_conn_t const &db_connection,
std::string const &table,
osmium::index::IdSetSmall<osmid_t> const &ids)
{
std::string data;
for (auto const id : ids) {
fmt::format_to(std::back_inserter(data), FMT_STRING("{}\n"), id);
}
auto const sql = fmt::format("COPY {} FROM STDIN", table);
db_connection.copy_start(sql.c_str());
db_connection.copy_send(data, table);
db_connection.copy_end(table);
}
static void load_id_list(pg_conn_t const &db_connection,
std::string const &table,
osmium::index::IdSetSmall<osmid_t> *ids)
{
auto const res = db_connection.exec(
fmt::format("SELECT DISTINCT id FROM {} ORDER BY id", table));
for (int n = 0; n < res.num_tuples(); ++n) {
ids->set(osmium::string_to_object_id(res.get_value(n, 0)));
}
}
static std::string build_sql(options_t const &options, std::string const &templ)
{
std::string const using_tablespace{options.tblsslim_index.empty()
? ""
: "USING INDEX TABLESPACE " +
options.tblsslim_index};
std::string const schema = "\"" + options.middle_dbschema + "\".";
return fmt::format(
fmt::runtime(templ), fmt::arg("prefix", options.prefix),
fmt::arg("schema", schema),
fmt::arg("unlogged", options.droptemp ? "UNLOGGED" : ""),
fmt::arg("using_tablespace", using_tablespace),
fmt::arg("data_tablespace", tablespace_clause(options.tblsslim_data)),
fmt::arg("index_tablespace", tablespace_clause(options.tblsslim_index)),
fmt::arg("way_node_index_id_shift", options.way_node_index_id_shift),
fmt::arg("attribute_columns_definition",
options.extra_attributes ? " created timestamp with time zone,"
" version int4,"
" changeset_id int4,"
" user_id int4,"
: ""),
fmt::arg("attribute_columns_use",
options.extra_attributes
? ", EXTRACT(EPOCH FROM created) AS created, version, "
"changeset_id, user_id, u.name"
: ""),
fmt::arg("users_table_access",
options.extra_attributes
? "LEFT JOIN " + schema + '"' + options.prefix +
"_users\" u ON o.user_id = u.id"
: ""));
}
static std::vector<std::string>
build_sql(options_t const &options, std::vector<std::string> const &templs)
{
std::vector<std::string> out;
out.reserve(templs.size());
for (auto const &templ : templs) {
out.push_back(build_sql(options, templ));
}
return out;
}
middle_pgsql_t::table_desc::table_desc(options_t const &options,
table_sql const &ts)
: m_create_table(build_sql(options, ts.create_table)),
m_prepare_queries(build_sql(options, ts.prepare_queries)),
m_copy_target(std::make_shared<db_target_descr_t>(
options.middle_dbschema, build_sql(options, ts.name), "id"))
{
if (options.with_forward_dependencies) {
m_create_fw_dep_indexes = build_sql(options, ts.create_fw_dep_indexes);
}
}
void middle_query_pgsql_t::exec_sql(std::string const &sql_cmd) const
{
m_sql_conn.exec(sql_cmd);
}
void middle_pgsql_t::table_desc::drop_table(
pg_conn_t const &db_connection) const
{
util::timer_t timer;
log_info("Dropping table '{}'", name());
auto const qual_name = qualified_name(schema(), name());
db_connection.exec("DROP TABLE IF EXISTS {}", qual_name);
log_info("Table '{}' dropped in {}", name(),
util::human_readable_duration(timer.stop()));
}
void middle_pgsql_t::table_desc::build_index(std::string const &conninfo) const
{
if (m_create_fw_dep_indexes.empty()) {
return;
}
// Use a temporary connection here because we might run in a separate
// thread context.
pg_conn_t const db_connection{conninfo};
log_info("Building index on table '{}'", name());
for (auto const &query : m_create_fw_dep_indexes) {
db_connection.exec(query);
}
}
void middle_pgsql_t::table_desc::init_max_id(pg_conn_t const &db_connection)
{
auto const qual_name = qualified_name(schema(), name());
auto const res = db_connection.exec("SELECT max(id) FROM {}", qual_name);
if (res.is_null(0, 0)) {
return;
}
m_max_id = osmium::string_to_object_id(res.get_value(0, 0));
}
/**
* Decode item in an array literal from PostgreSQL to the next delimiter.
*
* \param src Pointer to the text with the array literal.
* \param dst The decoded item is written to this string. The string is
* cleared before use.
* \returns Pointer to the delimiter found.
* \throws runtime_error If the input string ends before the delimiter is found.
*/
static char const *decode_to_delimiter(char const *src, std::string *dst)
{
assert(src);
dst->clear();
bool const quoted = (*src == '"');
if (quoted) {
++src;
}
while (quoted ? (*src != '"') : (*src != ',' && *src != '}')) {
if (*src == '\0') {
throw std::runtime_error{
"Parsing array literal from database failed."};
}
if (*src == '\\') {
switch (src[1]) {
case 'n':
dst->append(1, '\n');
break;
case 't':
dst->append(1, '\t');
break;
default:
dst->append(1, src[1]);
break;
}
src += 2;
} else {
dst->append(1, *src++);
}
}
if (quoted) {
++src;
}
return src;
}
namespace {
/**
* Go through tags returned from a version 1 middle table, get the attributes
* from the "osm_*" tags and add them to the builder.
*/
template <typename T>
void pgsql_get_attr_from_tags(char const *string, T *builder)
{
if (*string++ != '{') {
return;
}
std::string key;
std::string val;
std::string user;
while (*string != '}') {
string = decode_to_delimiter(string, &key);
// String points to the comma */
++string;
string = decode_to_delimiter(string, &val);
if (key == "osm_version") {
builder->set_version(val.c_str());
} else if (key == "osm_timestamp") {
builder->set_timestamp(osmium::Timestamp{val});
} else if (key == "osm_changeset") {
builder->set_changeset(val.c_str());
} else if (key == "osm_uid") {
builder->set_uid(val.c_str());
} else if (key == "osm_user") {
user = val;
}
// String points to the comma or closing '}' */
if (*string == ',') {
++string;
}
}
// Must be done at the end, because after that call the builder might
// become invalid due to buffer resizing.
builder->set_user(user);
}
/**
* Go through tags returned from a version 1 middle table, get all tags except
* the pseudo-tags containing attributes and add them to the builder.
*/
template <typename T>
void pgsql_parse_tags(char const *string, osmium::memory::Buffer *buffer,
T *obuilder)
{
if (*string++ != '{') {
return;
}
osmium::builder::TagListBuilder builder{*buffer, obuilder};
std::string key;
std::string val;
while (*string != '}') {
string = decode_to_delimiter(string, &key);
// String points to the comma */
++string;
string = decode_to_delimiter(string, &val);
if (key != "osm_version" && key != "osm_timestamp" &&
key != "osm_changeset" && key != "osm_uid" && key != "osm_user") {
builder.add_tag(key, val);
}
// String points to the comma or closing '}' */
if (*string == ',') {
++string;
}
}
}
/**
* Parse JSON-encoded tags from a version 2 middle table and add them to the
* builder.
*/
template <typename T>
void pgsql_parse_json_tags(char const *string, osmium::memory::Buffer *buffer,
T *obuilder)
{
auto const tags = nlohmann::json::parse(string);
if (!tags.is_object()) {
throw std::runtime_error{"Database format for tags invalid."};
}
// These will come out sorted, because internally "tags" uses a std::map.
osmium::builder::TagListBuilder builder{*buffer, obuilder};
for (auto const &tag : tags.items()) {
builder.add_tag(tag.key(), tag.value());
}
}
/**
* Helper class for parsing relation members encoded in JSON.
*/
class member_list_json_builder
{
public:
explicit member_list_json_builder(
osmium::builder::RelationMemberListBuilder *builder)
: m_builder(builder)
{}
static bool number_integer(nlohmann::json::number_integer_t /*val*/)
{
return true;
}
bool number_unsigned(nlohmann::json::number_unsigned_t val)
{
m_ref = static_cast<osmium::object_id_type>(val);
return true;
}
static bool number_float(nlohmann::json::number_float_t /*val*/,
const nlohmann::json::string_t & /*s*/)
{
return true;
}
bool key(nlohmann::json::string_t &val)
{
if (val == "type") {
m_next_val = next_val::type;
} else if (val == "ref") {
m_next_val = next_val::ref;
} else if (val == "role") {
m_next_val = next_val::role;
} else {
m_next_val = next_val::none;
}
return true;
}
bool string(nlohmann::json::string_t &val)
{
if (m_next_val == next_val::type && val.size() == 1) {
switch (val[0]) {
case 'N':
m_type = osmium::item_type::node;
break;
case 'W':
m_type = osmium::item_type::way;
break;
default:
m_type = osmium::item_type::relation;
break;
}
} else if (m_next_val == next_val::role) {
m_role = val;
}
return true;
}
bool end_object()
{
m_builder->add_member(m_type, m_ref, m_role);
m_next_val = next_val::none;
m_type = osmium::item_type::undefined;
m_ref = 0;
m_role.clear();
return true;
}
static bool null() { return true; }
static bool boolean(bool /*val*/) { return true; }
static bool binary(std::vector<std::uint8_t> & /*val*/) { return true; }
static bool start_object(std::size_t /*elements*/) { return true; }
static bool start_array(std::size_t /*elements*/) { return true; }
static bool end_array() { return true; }
static bool parse_error(std::size_t /*position*/,
const std::string & /*last_token*/,
const nlohmann::json::exception &ex)
{
throw ex;
}
private:
osmium::builder::RelationMemberListBuilder *m_builder;
std::string m_role;
osmium::object_id_type m_ref = 0;
osmium::item_type m_type = osmium::item_type::undefined;
enum class next_val
{
none,
type,
ref,
role
} m_next_val = next_val::none;
};
template <typename T>
void pgsql_parse_json_members(char const *string,
osmium::memory::Buffer *buffer, T *obuilder)
{
osmium::builder::RelationMemberListBuilder builder{*buffer, obuilder};
member_list_json_builder parser{&builder};
nlohmann::json::sax_parse(string, &parser);
}
void pgsql_parse_members(char const *string, osmium::memory::Buffer *buffer,
osmium::builder::RelationBuilder *obuilder)
{
if (*string++ != '{') {
return;
}
std::string role;
osmium::builder::RelationMemberListBuilder builder{*buffer, obuilder};
while (*string != '}') {
char const type = string[0];
char *endp = nullptr;
osmid_t const id = std::strtoll(string + 1, &endp, 10);
// String points to the comma */
string = decode_to_delimiter(endp + 1, &role);
builder.add_member(osmium::char_to_item_type(type), id, role);
// String points to the comma or closing '}' */
if (*string == ',') {
++string;
}
}
}
void pgsql_parse_nodes(char const *string, osmium::memory::Buffer *buffer,
osmium::builder::WayBuilder *obuilder)
{
if (*string++ == '{') {
osmium::builder::WayNodeListBuilder wnl_builder{*buffer, obuilder};
while (*string != '}') {
char *ptr = nullptr;
wnl_builder.add_node_ref(std::strtoll(string, &ptr, 10));
string = ptr;
if (*string == ',') {
++string;
}
}
}
}
template <typename T>
void set_attributes_on_builder(T *builder, pg_result_t const &result, int num,
int offset)
{
if (!result.is_null(num, offset + 2)) {
builder->set_timestamp(
std::strtoul(result.get_value(num, offset + 2), nullptr, 10));
}
if (!result.is_null(num, offset + 3)) {
builder->set_version(result.get_value(num, offset + 3));
}
if (!result.is_null(num, offset + 4)) {
builder->set_changeset(result.get_value(num, offset + 4));
}
if (!result.is_null(num, offset + 5)) {
builder->set_uid(result.get_value(num, offset + 5));
}
if (!result.is_null(num, offset + 6)) {
builder->set_user(result.get_value(num, offset + 6));
}
}
} // anonymous namespace
static void tags_to_json(osmium::TagList const &tags, json_writer_t *writer)
{
writer->start_object();
for (auto const &tag : tags) {
writer->key(tag.key());
writer->string(tag.value());
writer->next();
}
writer->end_object();
}
static void members_to_json(osmium::RelationMemberList const &members,
json_writer_t *writer)
{
writer->start_array();
for (auto const &member : members) {
writer->start_object();
writer->key("type");
switch (member.type()) {
case osmium::item_type::node:
writer->string("N");
break;
case osmium::item_type::way:
writer->string("W");
break;
default: // osmium::item_type::relation
writer->string("R");
break;
}
writer->next();
writer->key("ref");
writer->number(member.ref());
writer->next();
writer->key("role");
writer->string(member.role());
writer->end_object();
writer->next();
}
writer->end_array();
}
void middle_pgsql_t::buffer_store_tags(osmium::OSMObject const &obj, bool attrs)
{
if (obj.tags().empty() && !attrs) {
m_db_copy.add_null_column();
} else {
m_db_copy.new_array();
for (auto const &it : obj.tags()) {
m_db_copy.add_array_elem(it.key());
m_db_copy.add_array_elem(it.value());
}
if (attrs) {
taglist_t extra;
extra.add_attributes(obj);
for (auto const &it : extra) {
m_db_copy.add_array_elem(it.key);
m_db_copy.add_array_elem(it.value);
}
}
m_db_copy.finish_array();
}
}
void middle_pgsql_t::copy_attributes(osmium::OSMObject const &obj)
{
if (obj.timestamp()) {
m_db_copy.add_column(obj.timestamp().to_iso());
} else {
m_db_copy.add_null_column();
}
if (obj.version()) {
m_db_copy.add_column(obj.version());
} else {
m_db_copy.add_null_column();
}
if (obj.changeset()) {
m_db_copy.add_columns(obj.changeset());
} else {
m_db_copy.add_null_column();
}
if (obj.uid()) {
m_db_copy.add_columns(obj.uid());
m_users.try_emplace(obj.uid(), obj.user());
} else {
m_db_copy.add_null_column();
}
}
void middle_pgsql_t::copy_tags(osmium::OSMObject const &obj)
{
if (m_store_options.db_format == 2) {
json_writer_t writer;
tags_to_json(obj.tags(), &writer);
m_db_copy.add_column(writer.json());
return;
}
buffer_store_tags(obj, m_store_options.with_attributes);
}
std::size_t middle_query_pgsql_t::get_way_node_locations_db(
osmium::WayNodeList *nodes) const
{
size_t count = 0;
util::string_joiner_t id_list{',', '\0', '{', '}'};
// get nodes where possible from cache,
// at the same time build a list for querying missing nodes from DB
for (auto &n : *nodes) {
auto const loc = m_cache->get(n.ref());
if (loc.valid()) {
n.set_location(loc);
++count;
} else {
id_list.add(fmt::to_string(n.ref()));
}
}
if (id_list.empty()) {
return count;
}
// get any remaining nodes from the DB
// Nodes must have been written back at this point.
auto const res = m_sql_conn.exec_prepared("get_node_list", id_list());
std::unordered_map<osmid_t, osmium::Location> locs;
for (int i = 0; i < res.num_tuples(); ++i) {
locs.emplace(osmium::string_to_object_id(res.get_value(i, 0)),
osmium::Location{
(int)std::strtol(res.get_value(i, 1), nullptr, 10),
(int)std::strtol(res.get_value(i, 2), nullptr, 10)});
}
for (auto &n : *nodes) {
auto const el = locs.find(n.ref());
if (el != locs.end()) {
n.set_location(el->second);
++count;
}
}
return count;
}
void middle_pgsql_t::node(osmium::Node const &node)
{
assert(m_middle_state == middle_state::node);
if (node.deleted()) {
node_delete(node.id());
} else {
if (m_options->append) {
node_delete(node.id());
}
node_set(node);
}
}
void middle_pgsql_t::way(osmium::Way const &way) {
assert(m_middle_state == middle_state::way);
if (way.deleted()) {
way_delete(way.id());
} else {
if (m_options->append) {
way_delete(way.id());
}
way_set(way);
}
}
void middle_pgsql_t::relation(osmium::Relation const &relation) {
assert(m_middle_state == middle_state::relation);
if (relation.deleted()) {
relation_delete(relation.id());
} else {
if (m_options->append) {
relation_delete(relation.id());
}
relation_set(relation);
}
}
void middle_pgsql_t::node_set(osmium::Node const &node)
{
m_cache->set(node.id(), node.location());
if (m_persistent_cache) {
m_persistent_cache->set(node.id(), node.location());
}
if (!m_store_options.nodes) {
return;
}
if (!m_store_options.untagged_nodes && node.tags().empty()) {
return;
}
m_db_copy.new_line(m_tables.nodes().copy_target());
m_db_copy.add_columns(node.id(), node.location().y(), node.location().x());
if (m_store_options.db_format == 2) {
if (m_store_options.with_attributes) {
copy_attributes(node);
}
copy_tags(node);
}
m_db_copy.finish_line();
}
std::size_t middle_query_pgsql_t::get_way_node_locations_flatnodes(
osmium::WayNodeList *nodes) const
{
std::size_t count = 0;
for (auto &n : *nodes) {
auto loc = m_cache->get(n.ref());
if (!loc.valid() && n.ref() >= 0) {
loc = m_persistent_cache->get(n.ref());
}
n.set_location(loc);
if (loc.valid()) {
++count;
}
}
return count;
}
osmium::Location middle_query_pgsql_t::get_node_location_db(osmid_t id) const
{
auto const res = m_sql_conn.exec_prepared("get_node", id);
if (res.num_tuples() == 0) {
return osmium::Location{};
}
return osmium::Location{(int)std::strtol(res.get_value(0, 1), nullptr, 10),
(int)std::strtol(res.get_value(0, 2), nullptr, 10)};
}
osmium::Location
middle_query_pgsql_t::get_node_location_flatnodes(osmid_t id) const
{
if (id >= 0) {
return m_persistent_cache->get(id);
}
return osmium::Location{};
}
osmium::Location middle_query_pgsql_t::get_node_location(osmid_t id) const
{
auto const loc = m_cache->get(id);
if (loc.valid()) {
return loc;
}
return m_persistent_cache ? get_node_location_flatnodes(id)
: get_node_location_db(id);
}
size_t middle_query_pgsql_t::nodes_get_list(osmium::WayNodeList *nodes) const
{
return m_persistent_cache ? get_way_node_locations_flatnodes(nodes)
: get_way_node_locations_db(nodes);
}
void middle_pgsql_t::node_delete(osmid_t osm_id)
{
assert(m_options->append);
if (m_persistent_cache) {
m_persistent_cache->set(osm_id, osmium::Location{});
}
if (m_store_options.nodes && osm_id <= m_tables.nodes().max_id()) {
m_db_copy.new_line(m_tables.nodes().copy_target());
m_db_copy.delete_object(osm_id);
}
}
void middle_pgsql_t::get_node_parents(
osmium::index::IdSetSmall<osmid_t> const &changed_nodes,
osmium::index::IdSetSmall<osmid_t> *parent_ways,
osmium::index::IdSetSmall<osmid_t> *parent_relations) const
{
util::timer_t timer;
m_db_connection.exec("BEGIN");
m_db_connection.exec("CREATE TEMP TABLE osm2pgsql_changed_nodes"
" (id int8 NOT NULL) ON COMMIT DROP");
m_db_connection.exec("CREATE TEMP TABLE osm2pgsql_changed_ways"
" (id int8 NOT NULL) ON COMMIT DROP");
m_db_connection.exec("CREATE TEMP TABLE osm2pgsql_changed_relations"
" (id int8 NOT NULL) ON COMMIT DROP");
send_id_list(m_db_connection, "osm2pgsql_changed_nodes", changed_nodes);
std::vector<std::string> queries;
queries.emplace_back("ANALYZE osm2pgsql_changed_nodes");
bool const has_bucket_index =
check_bucket_index(&m_db_connection, m_options->prefix);
if (has_bucket_index) {
// The query to get the parent ways of changed nodes is "hidden"
// inside a PL/pgSQL function so that the query planner only sees
// a single node id that is being queried for. If we ask for all
// nodes at the same time the query planner sometimes thinks it is
// better to do a full table scan which totally destroys performance.
// This is due to the PostgreSQL statistics on ARRAYs being way off.
queries.emplace_back(R"(
CREATE OR REPLACE FUNCTION osm2pgsql_find_changed_ways() RETURNS void AS $$
DECLARE
changed_buckets RECORD;
BEGIN
FOR changed_buckets IN
SELECT array_agg(id) AS node_ids, id >> {way_node_index_id_shift} AS bucket
FROM osm2pgsql_changed_nodes GROUP BY id >> {way_node_index_id_shift}
LOOP
INSERT INTO osm2pgsql_changed_ways
SELECT DISTINCT w.id
FROM {schema}"{prefix}_ways" w
WHERE w.nodes && changed_buckets.node_ids
AND {schema}"{prefix}_index_bucket"(w.nodes)
&& ARRAY[changed_buckets.bucket];
END LOOP;
END;
$$ LANGUAGE plpgsql
)");
queries.emplace_back("SELECT osm2pgsql_find_changed_ways()");
queries.emplace_back("DROP FUNCTION osm2pgsql_find_changed_ways()");
} else {
queries.emplace_back(R"(
INSERT INTO osm2pgsql_changed_ways
SELECT w.id
FROM {schema}"{prefix}_ways" w, osm2pgsql_changed_nodes n
WHERE w.nodes && ARRAY[n.id]
)");
}
if (m_options->middle_database_format == 1) {
queries.emplace_back(R"(
INSERT INTO osm2pgsql_changed_relations
SELECT r.id
FROM {schema}"{prefix}_rels" r, osm2pgsql_changed_nodes n
WHERE r.parts && ARRAY[n.id]
AND r.parts[1:way_off] && ARRAY[n.id]
)");
} else {
queries.emplace_back(R"(
INSERT INTO osm2pgsql_changed_relations
SELECT r.id
FROM {schema}"{prefix}_rels" r, osm2pgsql_changed_nodes c
WHERE {schema}"{prefix}_member_ids"(r.members, 'N'::char) && ARRAY[c.id];
)");
}
for (auto const &query : queries) {
m_db_connection.exec(build_sql(*m_options, query));
}
load_id_list(m_db_connection, "osm2pgsql_changed_ways", parent_ways);
load_id_list(m_db_connection, "osm2pgsql_changed_relations",
parent_relations);
m_db_connection.exec("COMMIT");
timer.stop();
log_debug("Found {} new/changed nodes in input.", changed_nodes.size());
log_debug(" Found in {} their {} parent ways and {} parent relations.",
std::chrono::duration_cast<std::chrono::seconds>(timer.elapsed()),
parent_ways->size(), parent_relations->size());
}
void middle_pgsql_t::get_way_parents(
osmium::index::IdSetSmall<osmid_t> const &changed_ways,
osmium::index::IdSetSmall<osmid_t> *parent_relations) const
{
util::timer_t timer;
auto const num_relations_referenced_by_nodes = parent_relations->size();
m_db_connection.exec("BEGIN");
m_db_connection.exec("CREATE TEMP TABLE osm2pgsql_changed_ways"
" (id int8 NOT NULL) ON COMMIT DROP");
m_db_connection.exec("CREATE TEMP TABLE osm2pgsql_changed_relations"
" (id int8 NOT NULL) ON COMMIT DROP");
send_id_list(m_db_connection, "osm2pgsql_changed_ways", changed_ways);
m_db_connection.exec("ANALYZE osm2pgsql_changed_ways");
if (m_options->middle_database_format == 1) {
m_db_connection.exec(build_sql(*m_options, R"(
INSERT INTO osm2pgsql_changed_relations
SELECT DISTINCT r.id
FROM {schema}"{prefix}_rels" r, osm2pgsql_changed_ways w
WHERE r.parts && ARRAY[w.id]
AND r.parts[way_off+1:rel_off] && ARRAY[w.id]
)"));
} else {
m_db_connection.exec(build_sql(*m_options, R"(
INSERT INTO osm2pgsql_changed_relations
SELECT DISTINCT r.id
FROM {schema}"{prefix}_rels" r, osm2pgsql_changed_ways c
WHERE {schema}"{prefix}_member_ids"(r.members, 'W'::char) && ARRAY[c.id];
)"));
}
load_id_list(m_db_connection, "osm2pgsql_changed_relations",
parent_relations);
m_db_connection.exec("COMMIT");
timer.stop();
log_debug("Found {} ways that are new/changed in input or parent of"
" changed node.",
changed_ways.size());
log_debug(" Found in {} their {} parent relations.",
std::chrono::duration_cast<std::chrono::seconds>(timer.elapsed()),
parent_relations->size() - num_relations_referenced_by_nodes);
// (Potentially) contains parent relations from nodes and from ways. Make
// sure they are merged.
parent_relations->sort_unique();
}
void middle_pgsql_t::way_set(osmium::Way const &way)
{
m_db_copy.new_line(m_tables.ways().copy_target());
m_db_copy.add_column(way.id());
if (m_store_options.db_format == 2 && m_store_options.with_attributes) {
copy_attributes(way);
}
// nodes
m_db_copy.new_array();
for (auto const &n : way.nodes()) {
m_db_copy.add_array_elem(n.ref());
}
m_db_copy.finish_array();
copy_tags(way);
m_db_copy.finish_line();
}
/**
* Build way in buffer from database results.
*/
static void build_way(osmid_t id, pg_result_t const &res, int res_num,
int offset, osmium::memory::Buffer *buffer,
uint8_t db_format, bool with_attributes)
{
osmium::builder::WayBuilder builder{*buffer};
builder.set_id(id);
if (db_format == 1) {
if (with_attributes) {
pgsql_get_attr_from_tags(res.get_value(res_num, offset + 1),
&builder);
}
pgsql_parse_nodes(res.get_value(res_num, offset + 0), buffer, &builder);
pgsql_parse_tags(res.get_value(res_num, offset + 1), buffer, &builder);
return;
}
if (with_attributes) {
set_attributes_on_builder(&builder, res, res_num, offset);