Eli Ribble
97ec2c767d
I have to checkpoint this because I'm trying to get a very complicated multi-layered SQL query for inserting version history into the database and I need to improve it iteratively I've got a new binary that I can use to directly test complex stored procedures. This is to shorted my testing loop.
74 lines
2.8 KiB
SQL
74 lines
2.8 KiB
SQL
-- Prepared statement for conditional insert with versioning for fieldseeker.stormdrain
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-- Only inserts a new version if data has changed
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PREPARE insert_stormdrain_versioned(bigint, timestamp, timestamp, varchar, fieldseeker.stormdrain_stormdrainsymbology_enum, uuid, varchar, timestamp, varchar, timestamp, varchar, varchar, varchar, timestamp, varchar, timestamp, varchar, varchar, varchar) AS
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WITH
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-- Get the current latest version of this record
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latest_version AS (
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SELECT * FROM fieldseeker.stormdrain
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WHERE objectid = $1
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ORDER BY VERSION DESC
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LIMIT 1
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),
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-- Calculate the next version number
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next_version AS (
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SELECT COALESCE(MAX(VERSION) + 1, 1) as version_num
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FROM fieldseeker.stormdrain
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WHERE objectid = $1
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)
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-- Perform conditional insert
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INSERT INTO fieldseeker.stormdrain (
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objectid, nexttreatmentdate, lasttreatdate, lastaction, symbology, globalid, created_user, created_date, last_edited_user, last_edited_date, laststatus, zone, zone2, creationdate, creator, editdate, editor, type, jurisdiction,
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VERSION
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)
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SELECT
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$1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19,
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v.version_num
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FROM next_version v
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WHERE
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-- Only insert if no record exists yet OR data has changed
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NOT EXISTS (SELECT 1 FROM latest_version lv WHERE
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lv.objectid IS NOT DISTINCT FROM $1 AND
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lv.nexttreatmentdate IS NOT DISTINCT FROM $2 AND
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lv.lasttreatdate IS NOT DISTINCT FROM $3 AND
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lv.lastaction IS NOT DISTINCT FROM $4 AND
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lv.symbology IS NOT DISTINCT FROM $5 AND
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lv.globalid IS NOT DISTINCT FROM $6 AND
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lv.created_user IS NOT DISTINCT FROM $7 AND
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lv.created_date IS NOT DISTINCT FROM $8 AND
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lv.last_edited_user IS NOT DISTINCT FROM $9 AND
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lv.last_edited_date IS NOT DISTINCT FROM $10 AND
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lv.laststatus IS NOT DISTINCT FROM $11 AND
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lv.zone IS NOT DISTINCT FROM $12 AND
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lv.zone2 IS NOT DISTINCT FROM $13 AND
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lv.creationdate IS NOT DISTINCT FROM $14 AND
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lv.creator IS NOT DISTINCT FROM $15 AND
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lv.editdate IS NOT DISTINCT FROM $16 AND
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lv.editor IS NOT DISTINCT FROM $17 AND
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lv.type IS NOT DISTINCT FROM $18 AND
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lv.jurisdiction IS NOT DISTINCT FROM $19
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)
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RETURNING *;
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-- Example usage: EXECUTE insert_stormdrain_versioned(id, value1, value2, ...);
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-- Parameters in order:
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-- $1: OBJECTID (bigint)
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-- $2: NextTreatmentDate (timestamp)
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-- $3: LastTreatDate (timestamp)
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-- $4: LastAction (varchar)
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-- $5: Symbology (fieldseeker.stormdrain_stormdrainsymbology_enum)
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-- $6: GlobalID (uuid)
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-- $7: created_user (varchar)
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-- $8: created_date (timestamp)
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-- $9: last_edited_user (varchar)
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-- $10: last_edited_date (timestamp)
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-- $11: LastStatus (varchar)
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-- $12: ZONE (varchar)
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-- $13: ZONE2 (varchar)
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-- $14: CreationDate (timestamp)
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-- $15: Creator (varchar)
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-- $16: EditDate (timestamp)
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-- $17: Editor (varchar)
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-- $18: TYPE (varchar)
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-- $19: JURISDICTION (varchar)
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