fix: constrain pg_depend lookups to the right catalog

src/SchemaSaurus.PostgreSql/PostgreSqlSchemaReader.Routines.cs

@@ -72,7 +72,7 @@ FROM pg_proc AS proc
             LEFT JOIN pg_description AS des ON des.objoid = proc.oid AND des.objsubid = 0
             WHERE {routineWhere}
                 AND ns.nspname NOT IN ('pg_catalog', 'information_schema'){schemaWhere}
-                AND NOT EXISTS (SELECT 1 FROM pg_depend dep WHERE dep.objid = proc.oid AND dep.deptype IN ('e', 'x'))
+                AND NOT EXISTS (SELECT 1 FROM pg_depend dep WHERE dep.classid = 'pg_proc'::regclass AND dep.objid = proc.oid AND dep.deptype IN ('e', 'x'))
             ORDER BY ns.nspname, proc.proname
             """;
 
@@ -205,7 +205,7 @@ CROSS JOIN LATERAL unnest(
             LEFT JOIN pg_type AS base_typ ON base_typ.oid = typ.typbasetype
             WHERE {routineWhere}
                 AND ns.nspname NOT IN ('pg_catalog', 'information_schema'){schemaWhere}
-                AND NOT EXISTS (SELECT 1 FROM pg_depend dep WHERE dep.objid = proc.oid AND dep.deptype IN ('e', 'x'))
+                AND NOT EXISTS (SELECT 1 FROM pg_depend dep WHERE dep.classid = 'pg_proc'::regclass AND dep.objid = proc.oid AND dep.deptype IN ('e', 'x'))
                 AND param.parameter_mode <> 't'
             ORDER BY proc.oid, param.ordinal_position
             """;

src/SchemaSaurus.PostgreSql/PostgreSqlSchemaReader.Sequences.cs

@@ -45,7 +45,9 @@ FROM pg_sequence AS seq
             WHERE NOT EXISTS (
                 SELECT 1
                 FROM pg_depend AS dep
-                WHERE dep.objid = cls.oid AND dep.deptype IN ('i', 'I', 'a')
+                WHERE dep.classid = 'pg_class'::regclass
+                  AND dep.objid = cls.oid
+                  AND dep.deptype IN ('i', 'I', 'a')
             ){schemaWhere}
             ORDER BY ns.nspname, cls.relname
             """;

src/SchemaSaurus.PostgreSql/PostgreSqlSchemaReader.Tables.cs

@@ -63,7 +63,10 @@ WHERE cls.relkind IN ('r', 'p', 'f')
               AND NOT EXISTS (
                   SELECT 1
                   FROM pg_depend dep
-                  WHERE dep.objid = cls.oid AND dep.deptype IN ('e', 'x')
+                  WHERE dep.classid = 'pg_class'::regclass
+                    AND dep.objid = cls.oid
+                    AND dep.objsubid = 0
+                    AND dep.deptype IN ('e', 'x')
               )
             ORDER BY ns.nspname, cls.relname
             """;

src/SchemaSaurus.PostgreSql/PostgreSqlSchemaReader.Views.cs

@@ -44,7 +44,10 @@ WHERE cls.relkind IN ('v', 'm')
               AND NOT EXISTS (
                   SELECT 1
                   FROM pg_depend dep
-                  WHERE dep.objid = cls.oid AND dep.deptype IN ('e', 'x')
+                  WHERE dep.classid = 'pg_class'::regclass
+                    AND dep.objid = cls.oid
+                    AND dep.objsubid = 0
+                    AND dep.deptype IN ('e', 'x')
               )
             ORDER BY ns.nspname, cls.relname
             """;