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Convert osm_route_member unique index to trigger (#1501)

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This PR changes the three-column unique index to an on-insert trigger. This should fix the issues we're having with CI failures and still achieve the behavior of coalescing duplicate routes. 

I moved the concurrency_index calculation into an intermediate materialized view to separate the de-duplication capability from both DENSE_RANK() and from imposm updates.
This commit is contained in:
Brian Sperlongano
2023-03-06 11:10:30 -05:00
committed by GitHub
parent 624cf7a8a3
commit b7edcf6153
4 changed files with 43 additions and 59 deletions
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14
layers/transportation/update_transportation_merge.sql
View File

@@ -13,7 +13,7 @@ DROP TRIGGER IF EXISTS trigger_refresh_z11 ON transportation.updates_z11;
-- Because this works well for roads that do not have relations as well
-- etldoc: osm_highway_linestring -> osm_transportation_name_network
-- etldoc: osm_route_member -> osm_transportation_name_network
-- etldoc: transportation_route_member_coalesced -> osm_transportation_name_network
CREATE TABLE IF NOT EXISTS osm_transportation_name_network AS
SELECT
geometry,
@@ -58,12 +58,12 @@ FROM (
hl.z_order,
LEAST(rm1.rank, rm2.rank, rm3.rank, rm4.rank, rm5.rank, rm6.rank) AS route_rank
FROM osm_highway_linestring hl
LEFT OUTER JOIN osm_route_member rm1 ON rm1.member = hl.osm_id AND rm1.concurrency_index=1
LEFT OUTER JOIN osm_route_member rm2 ON rm2.member = hl.osm_id AND rm2.concurrency_index=2
LEFT OUTER JOIN osm_route_member rm3 ON rm3.member = hl.osm_id AND rm3.concurrency_index=3
LEFT OUTER JOIN osm_route_member rm4 ON rm4.member = hl.osm_id AND rm4.concurrency_index=4
LEFT OUTER JOIN osm_route_member rm5 ON rm5.member = hl.osm_id AND rm5.concurrency_index=5
LEFT OUTER JOIN osm_route_member rm6 ON rm6.member = hl.osm_id AND rm6.concurrency_index=6
LEFT OUTER JOIN transportation_route_member_coalesced rm1 ON rm1.member = hl.osm_id AND rm1.concurrency_index=1
LEFT OUTER JOIN transportation_route_member_coalesced rm2 ON rm2.member = hl.osm_id AND rm2.concurrency_index=2
LEFT OUTER JOIN transportation_route_member_coalesced rm3 ON rm3.member = hl.osm_id AND rm3.concurrency_index=3
LEFT OUTER JOIN transportation_route_member_coalesced rm4 ON rm4.member = hl.osm_id AND rm4.concurrency_index=4
LEFT OUTER JOIN transportation_route_member_coalesced rm5 ON rm5.member = hl.osm_id AND rm5.concurrency_index=5
LEFT OUTER JOIN transportation_route_member_coalesced rm6 ON rm6.member = hl.osm_id AND rm6.concurrency_index=6
WHERE (hl.name <> '' OR hl.ref <> '' OR rm1.ref <> '' OR rm1.network <> '')
AND hl.highway <> ''
) AS t;