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foreign key loading optimalization #451

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This commit is contained in:
Jan Prochazka
2023-01-21 09:34:29 +01:00
parent 451f671426
commit 3dfae351a6
7 changed files with 4 additions and 42 deletions
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24
plugins/dbgate-plugin-postgres/src/backend/sql/foreignKeys.js
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@@ -1,24 +0,0 @@
module.exports = `
select
fk.constraint_name as "constraint_name",
fk.constraint_schema as "constraint_schema",
base.table_name as "pure_name",
base.table_schema as "schema_name",
fk.update_rule as "update_action",
fk.delete_rule as "delete_action",
ref.table_name as "ref_table_name",
ref.table_schema as "ref_schema_name",
basecol.column_name as "column_name",
refcol.column_name as "ref_column_name"
from information_schema.referential_constraints fk
inner join information_schema.table_constraints base on fk.constraint_name = base.constraint_name and fk.constraint_schema = base.constraint_schema
inner join information_schema.table_constraints ref on fk.unique_constraint_name = ref.constraint_name and fk.unique_constraint_schema = ref.constraint_schema #REFTABLECOND#
inner join information_schema.key_column_usage basecol on base.table_name = basecol.table_name and base.constraint_name = basecol.constraint_name
inner join information_schema.key_column_usage refcol on ref.table_name = refcol.table_name and ref.constraint_name = refcol.constraint_name and basecol.ordinal_position = refcol.ordinal_position
where
base.table_schema <> 'information_schema'
and base.table_schema <> 'pg_catalog'
and base.table_schema !~ '^pg_toast'
and ('tables:' || base.table_schema || '.' || base.table_name) =OBJECT_ID_CONDITION
order by basecol.ordinal_position
`;