Add database upgrade file 07

2025-12-06 11:27:09 +00:00 · 2021-09-04 19:07:54 +02:00
parent 45fe467a21
commit a280a910f5
1 changed files with 91 additions and 0 deletions
--- a/etc/db/upgrades/upgrade07-81d9ea19→0a10c897.sql
+++ b/etc/db/upgrades/upgrade07-81d9ea19→0a10c897.sql
@@ -0,0 +1,91 @@
+-- Upgrade the database from commit 81d9ea19 to 0a10c897.
+--
+-- NOTE: This upgrade must be applied to every schema in the database.
+-- NOTE: Each application starts a transaction, which must be committed
+-- or rolled back.
+--
+-- This defines a new function ij_error(line, point, geometry) which
+-- returns the crossline and inline distance (in metres) between the
+-- geometry (which must be a point) and the preplot corresponding to
+-- line / point.
+--
+-- To apply, run as the dougal user, for every schema in the database:
+--
+-- psql <<EOF
+-- SET search_path TO survey_*,public;
+-- \i $THIS_FILE
+-- COMMIT;
+-- EOF
+--
+-- NOTE: It can be applied multiple times without ill effect.
+
+
+BEGIN;
+
+
+-- Return the crossline, inline error of `geom` with respect to `line` and `point`
+-- in the project's binning grid.
+
+CREATE OR REPLACE FUNCTION ij_error(line double precision, point double precision, geom public.geometry)
+    RETURNS public.geometry(Point, 0)
+    LANGUAGE plpgsql STABLE LEAKPROOF
+    AS $$
+DECLARE
+    bp jsonb := binning_parameters();
+    ij public.geometry := to_binning_grid(geom, bp);
+    
+    theta numeric := (bp->>'theta')::numeric * pi() / 180;
+    I_inc numeric DEFAULT 1;
+    J_inc numeric DEFAULT 1;
+    I_width numeric := (bp->>'I_width')::numeric;
+    J_width numeric := (bp->>'J_width')::numeric;
+
+    a numeric := (I_inc/I_width) * cos(theta);
+    b numeric := (I_inc/I_width) * -sin(theta);
+    c numeric := (J_inc/J_width) * sin(theta);
+    d numeric := (J_inc/J_width) * cos(theta);
+    xoff numeric := (bp->'origin'->>'I')::numeric;
+    yoff numeric := (bp->'origin'->>'J')::numeric;
+    E0 numeric := (bp->'origin'->>'easting')::numeric;
+    N0 numeric := (bp->'origin'->>'northing')::numeric;
+    
+    error_i double precision;
+    error_j double precision;
+BEGIN
+    error_i := (public.st_x(ij) - line) * I_width;
+    error_j := (public.st_y(ij) - point) * J_width;
+    
+    RETURN public.ST_MakePoint(error_i, error_j);
+END
+$$;
+
+
+-- Return the list of points and metadata for all sequences.
+-- Only points which have a corresponding preplot are returned.
+-- If available, final positions are returned as well, if not they
+-- are NULL.
+-- Likewise, crossline / inline errors are also returned as a PostGIS
+-- 2D point both for raw and final data.
+
+CREATE OR REPLACE VIEW sequences_detail AS
+SELECT
+    rl.sequence, rl.line AS sailline,
+    rs.line, rs.point,
+    rs.tstamp,
+    rs.objref objRefRaw, fs.objref objRefFinal,
+    ST_Transform(pp.geometry, 4326) geometryPreplot,
+    ST_Transform(rs.geometry, 4326) geometryRaw,
+    ST_Transform(fs.geometry, 4326) geometryFinal,
+    ij_error(rs.line, rs.point, rs.geometry) errorRaw,
+    ij_error(rs.line, rs.point, fs.geometry) errorFinal,
+    json_build_object('preplot', pp.meta, 'raw', rs.meta, 'final', fs.meta) meta
+FROM
+    raw_lines rl
+    INNER JOIN raw_shots rs USING (sequence)
+    INNER JOIN preplot_points pp ON rs.line = pp.line AND rs.point = pp.point
+    LEFT JOIN final_shots fs ON rl.sequence = fs.sequence AND rs.point = fs.point;
+
+
+--
+--NOTE Run `COMMIT;` now if all went well
+--