foreign key loading optimalization #451

plugins/dbgate-plugin-postgres/src/backend/Analyser.js

@@ -57,7 +57,6 @@ class Analyser extends DatabaseAnalyser {
 
   createQuery(resFileName, typeFields) {
     const query = super.createQuery(sql[resFileName], typeFields);
-    // if (query) return query.replace('#REFTABLECOND#', this.driver.__analyserInternals.refTableCond);
     return query;
   }
 
@@ -79,11 +78,6 @@ class Analyser extends DatabaseAnalyser {
 
     let fkColumns = null;
 
-    // if (true) {
-    // if (this.containsObjectIdCondition(['tables']) || this.driver.__analyserInternals.refTableCond) {
-    //   this.feedback({ analysingMessage: 'Loading foreign keys' });
-    //   fkColumns = await this.driver.query(this.pool, this.createQuery('foreignKeys', ['tables']));
-    // } else {
     this.feedback({ analysingMessage: 'Loading foreign key constraints' });
     const fk_tableConstraints = await this.driver.query(this.pool, this.createQuery('fk_tableConstraints', ['tables']));
 
@@ -133,7 +127,6 @@ class Analyser extends DatabaseAnalyser {
       }
     }
     fkColumns = { rows: fkRows };
-    // }
 
     this.feedback({ analysingMessage: 'Loading views' });
     const views = await this.driver.query(this.pool, this.createQuery('views', ['views']));

plugins/dbgate-plugin-postgres/src/backend/drivers.js

@@ -78,8 +78,6 @@ const drivers = driverBases.map(driverBase => ({
           };
     }
 
-    console.log('OPTIONS', options);
-
     const client = new pg.Client(options);
     await client.connect();
 

plugins/dbgate-plugin-postgres/src/backend/sql/fk_key_column_usage.js

@@ -7,4 +7,5 @@ select
 	basecol.table_name,
 	basecol.ordinal_position
 from  information_schema.key_column_usage basecol
+where ('tables:' || basecol.table_schema || '.' || basecol.table_name) =OBJECT_ID_CONDITION
 `;

plugins/dbgate-plugin-postgres/src/backend/sql/fk_table_constraints.js

@@ -5,4 +5,5 @@ select
 	base.constraint_name as "constraint_name",
 	base.constraint_schema as "constraint_schema"
 from information_schema.table_constraints base
+where ('tables:' || base.table_schema || '.' || base.table_name) =OBJECT_ID_CONDITION
 `;

plugins/dbgate-plugin-postgres/src/backend/sql/foreignKeys.js

@@ -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
-`;

plugins/dbgate-plugin-postgres/src/backend/sql/index.js

@@ -4,7 +4,6 @@ const tableList = require('./tableList');
 const viewModifications = require('./viewModifications');
 const matviewModifications = require('./matviewModifications');
 const primaryKeys = require('./primaryKeys');
-const foreignKeys = require('./foreignKeys');
 const views = require('./views');
 const matviews = require('./matviews');
 const routines = require('./routines');
@@ -26,7 +25,6 @@ module.exports = {
   tableList,
   viewModifications,
   primaryKeys,
-  foreignKeys,
   fk_keyColumnUsage,
   fk_referentialConstraints,
   fk_tableConstraints,

plugins/dbgate-plugin-postgres/src/frontend/drivers.js

@@ -140,9 +140,7 @@ const postgresDriverBase = {
     return connection;
   },
 
-  __analyserInternals: {
+  __analyserInternals: {},
-    refTableCond: '',
-  },
 
   getNewObjectTemplates() {
     return [
@@ -212,9 +210,7 @@ const cockroachDriver = {
     dropColumnDependencies: ['primaryKey', 'dependencies'],
     dropPrimaryKey: false,
   },
-  __analyserInternals: {
+  __analyserInternals: {},
-    refTableCond: 'and fk.referenced_table_name = ref.table_name',
-  },
 };
 
 /** @type {import('dbgate-types').EngineDriver} */
@@ -225,7 +221,6 @@ const redshiftDriver = {
     stringAgg: false,
   },
   __analyserInternals: {
-    refTableCond: '',
     skipIndexes: true,
   },
   engine: 'redshift@dbgate-plugin-postgres',