41 lines
1.7 KiB
Bash
41 lines
1.7 KiB
Bash
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#!/bin/bash
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# DR #2061 - this update script will drop the dataURI column from acars
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PSQL="/awips2/psql/bin/psql"
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# takes one arg: a table name
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# drops the datauri constraint and column if they exist
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function dropDatauri {
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echo "INFO: Dropping DataURI column from $1"
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${PSQL} -U awips -d metadata -c "ALTER TABLE $1 DROP CONSTRAINT IF EXISTS ${1}_datauri_key;"
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${PSQL} -U awips -d metadata -c "ALTER TABLE $1 DROP COLUMN IF EXISTS datauri;"
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if [ $? -ne 0 ]; then
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echo "ERROR: Failed to drop dataURI column for $table"
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echo "FATAL: The update has failed."
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exit 1
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fi
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}
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# takes three args: table, constraint name, unique columns
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# will first drop the constraint if it exists and then adds it back, this is
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# fairly inefficient if it does exist but operationally it won't exist and for
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# testing this allows the script to be run easily as a noop.
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function dropDatauriAndAddConstraint {
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dropDatauri $1
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${PSQL} -U awips -d metadata -c "ALTER TABLE $1 DROP CONSTRAINT IF EXISTS $2;"
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${PSQL} -U awips -d metadata -c "ALTER TABLE $1 ADD CONSTRAINT $2 UNIQUE $3;"
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if [ $? -ne 0 ]; then
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echo "ERROR: Failed to add new unique constraint for $table"
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echo "FATAL: The update has failed."
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exit 1
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fi
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}
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echo "INFO: Dropping acars dataURI columns."
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dropDatauriAndAddConstraint acars acars_reftime_tailnumber_flightlevel_latitude_longitude_key "(reftime, tailnumber, flightlevel, latitude, longitude)"
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${PSQL} -U awips -d metadata -c "update acars set stationid = to_char(longitude, 'FM999.999') || ':' || to_char(latitude, 'FM999.999')"
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${PSQL} -U awips -d metadata -c "VACUUM FULL ANALYZE acars"
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echo "INFO: acars dataURI columns dropped successfully"
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