fix(query/removeConstraint): support schemas

lib/dialects/abstract/query-generator.js

@@ -696,7 +696,13 @@ class QueryGenerator {
   }
   }
 
 
   removeConstraintQuery(tableName, constraintName) {
   removeConstraintQuery(tableName, constraintName) {
-    return `ALTER TABLE ${this.quoteIdentifiers(tableName)} DROP CONSTRAINT ${this.quoteIdentifiers(constraintName)}`;
+    if (typeof tableName === 'string') {
+      tableName = this.quoteIdentifiers(tableName);
+    } else {
+      tableName = this.quoteTable(tableName);
+    }
+
+    return `ALTER TABLE ${tableName} DROP CONSTRAINT ${this.quoteIdentifiers(constraintName)}`;
   }
   }
 
 
   /*
   /*

test/unit/sql/remove-constraint.test.js

@@ -13,6 +13,17 @@ if (current.dialect.supports.constraints.dropConstraint) {
           default: 'ALTER TABLE [myTable] DROP CONSTRAINT [constraint_name]'
           default: 'ALTER TABLE [myTable] DROP CONSTRAINT [constraint_name]'
         });
         });
       });
       });
+
+      if (current.dialect.supports.schemas) {
+        it('schema', () => {
+          expectsql(sql.removeConstraintQuery({
+            tableName: 'myTable',
+            schema: 'inspections'
+          }, 'constraint_name'), {
+            default: 'ALTER TABLE [inspections].[myTable] DROP CONSTRAINT [constraint_name]'
+          });
+        });
+      }
     });
     });
   });
   });
 }
 }