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fix: changes postgres query to support redshift #140

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fix: changes postgres query to support redshift #140

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22 changes: 14 additions & 8 deletions drivers/postgres.go
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Original file line number Diff line number Diff line change
Expand Up @@ -883,16 +883,22 @@ func (db *Postgres) GetPrimaryKeyColumnNames(database, table string) (primaryKey

row, err := db.Connection.Query(`
SELECT
a.attname AS column_name
a.attname AS column_name
FROM
pg_index i
JOIN pg_class c ON c.oid = i.indrelid
JOIN pg_attribute a ON a.attrelid = c.oid
AND a.attnum = ANY (i.indkey)
JOIN pg_namespace n ON n.oid = c.relnamespace
pg_index i
JOIN pg_class c ON c.oid = i.indrelid
JOIN pg_attribute a ON a.attrelid = c.oid
JOIN pg_namespace n ON n.oid = c.relnamespace
WHERE
relname = $2 AND nspname = $1 AND indisprimary
`, schemaName, tableName)
relname = $2
AND nspname = $1
AND indisprimary
AND EXISTS (
SELECT 1
FROM generate_subscripts(i.indkey, 1) AS s
WHERE a.attnum = i.indkey[s]
);
`, schemaName, tableName)
if err != nil {
logger.Error("GetPrimaryKeyColumnNames", map[string]any{"error": err.Error()})
return nil, err
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