fixed information schema definitions

Author: daimor

sqlalchemy_iris/information_schema.py

@@ -1,14 +1,31 @@
+from sqlalchemy.types import TypeDecorator
 from sqlalchemy import Column
 from sqlalchemy import MetaData
 from sqlalchemy import Table
-from sqlalchemy.types import Boolean
 from sqlalchemy.types import Integer
 from sqlalchemy.types import String
 
 
 ischema = MetaData()
 
 
+class YESNO(TypeDecorator):
+    impl = String
+
+    cache_ok = True
+
+    def __init__(self, length=None, **kwargs):
+        super().__init__(length, **kwargs)
+
+    def process_literal_param(self, value, dialect):
+        return 'YES' if value else 'NO'
+
+    process_bind_param = process_literal_param
+
+    def process_result_value(self, value, dialect):
+        return value == 'YES'
+
+
 schemata = Table(
     "SCHEMATA",
     ischema,
@@ -37,17 +54,17 @@
     Column("COLUMN_NAME", String, key="column_name"),
     Column("ORDINAL_POSITION", Integer, key="ordinal_position"),
     Column("COLUMN_DEFAULT", Integer, key="column_default"),
-    Column("IS_NULLABLE", Integer, key="is_nullable"),
+    Column("IS_NULLABLE", YESNO, key="is_nullable"),
     Column("DATA_TYPE", String, key="data_type"),
     Column(
         "CHARACTER_MAXIMUM_LENGTH", Integer, key="character_maximum_length"
     ),
     Column("NUMERIC_PRECISION", Integer, key="numeric_precision"),
     Column("NUMERIC_SCALE", Integer, key="numeric_scale"),
     Column("COLLATION_NAME", String, key="collation_name"),
-    Column("AUTO_INCREMENT", Boolean, key="auto_increment"),
-    Column("UNIQUE_COLUMN", Boolean, key="unique_column"),
-    Column("PRIMARY_KEY", Boolean, key="primary_key"),
+    Column("AUTO_INCREMENT", YESNO, key="auto_increment"),
+    Column("UNIQUE_COLUMN", YESNO, key="unique_column"),
+    Column("PRIMARY_KEY", YESNO, key="primary_key"),
     Column("DESCIPTION", String, key="desciption"),
     schema="INFORMATION_SCHEMA",
 )
@@ -58,14 +75,14 @@
     Column("TABLE_CATALOG", String, key="table_catalog"),
     Column("TABLE_SCHEMA", String, key="table_schema"),
     Column("TABLE_NAME", String, key="table_name"),
-    Column("NON_UNIQUE", Boolean, key="non_unique"),
+    Column("NON_UNIQUE", YESNO, key="non_unique"),
     Column("INDEX_CATALOG", String, key="index_catalog"),
     Column("INDEX_SCHEMA", String, key="index_schema"),
     Column("INDEX_NAME", String, key="index_name"),
     Column("ORDINAL_POSITION", Integer, key="ordinal_position"),
     Column("COLUMN_NAME", String, key="column_name"),
     Column("ASC_OR_DESC", String, key="asc_or_desc"),
-    Column("PRIMARY_KEY", Boolean, key="primary_key"),
+    Column("PRIMARY_KEY", YESNO, key="primary_key"),
     schema="INFORMATION_SCHEMA",
 )
 

sqlalchemy_iris/requirements.py

@@ -1110,17 +1110,3 @@ def autoincrement_without_sequence(self):
         """
         return exclusions.open()
         # return exclusions.closed()
-
-    #
-    # SQLAlchemy Tests
-    # pytest --dburi iris://_SYSTEM:SYS@localhost:1972/USER \ 
-    #   --requirements sqlalchemy_iris.requirements:Requirements
-    #
-
-    @property
-    def memory_process_intensive(self):
-        return exclusions.closed()
-
-    @property
-    def array_type(self):
-        return exclusions.closed()