Fixed an issue where long float values cause the rendering issue on the UI side.

It's a regression of the original commit for 6341.

refs #6341

web/pgadmin/utils/driver/psycopg2/connection.py

@@ -30,7 +30,7 @@ from pgadmin.utils.exception import ConnectionLost, CryptKeyMissing
 from pgadmin.utils import get_complete_file_path
 from ..abstract import BaseConnection
 from .cursor import DictCursor
-from .typecast import register_float_typecasters, register_global_typecasters,\
+from .typecast import numeric_typecasters, register_global_typecasters,\
     register_string_typecasters, register_binary_typecasters, \
     unregister_numeric_typecasters, \
     register_array_to_string_typecasters, ALL_JSON_TYPES
@@ -462,7 +462,6 @@ class Connection(BaseConnection):
         self._set_auto_commit(kwargs)
 
         register_string_typecasters(self.conn)
-        register_float_typecasters(self.conn)
 
         if self.array_to_string:
             register_array_to_string_typecasters(self.conn)
@@ -846,6 +845,9 @@ WHERE db.datname = current_database()""")
                 yield gettext('The query executed did not return any data.')
                 return
 
+            # Type cast the numeric values
+            results = numeric_typecasters(results)
+
             header = []
             json_columns = []
 
@@ -912,8 +914,6 @@ WHERE db.datname = current_database()""")
 
         # Registering back type caster for large size data types to string
         # which was unregistered at starting
-        if any(type['type_code'] == 701 for type in self.column_info):
-            register_float_typecasters(self.conn)
         register_string_typecasters(self.conn)
         return True, gen
 

web/pgadmin/utils/driver/psycopg2/typecast.py

@@ -22,7 +22,6 @@ from .encoding import configure_driver_encodings, get_encoding
 
 configure_driver_encodings(encodings)
 
-
 # OIDs of data types which need to typecast as string to avoid JavaScript
 # compatibility issues.
 # e.g JavaScript does not support 64 bit integers. It has 64-bit double
@@ -67,7 +66,6 @@ TO_ARRAY_OF_STRING_DATATYPES = (
 # OID of record array data type
 RECORD_ARRAY = (2287,)
 
-
 # OIDs of builtin array datatypes supported by psycopg2
 # OID reference psycopg2/psycopg/typecast_builtins.c
 #
@@ -103,22 +101,18 @@ PSYCOPG_SUPPORTED_JSON_ARRAY_TYPES = (199, 3807)
 ALL_JSON_TYPES = PSYCOPG_SUPPORTED_JSON_TYPES +\
     PSYCOPG_SUPPORTED_JSON_ARRAY_TYPES
 
-
 # INET[], CIDR[]
 # OID reference psycopg2/lib/_ipaddress.py
 PSYCOPG_SUPPORTED_IPADDRESS_ARRAY_TYPES = (1041, 651)
 
-
 # uuid[]
 # OID reference psycopg2/lib/extras.py
 PSYCOPG_SUPPORTED_IPADDRESS_ARRAY_TYPES = (2951,)
 
-
 # int4range, int8range, numrange, daterange tsrange, tstzrange[]
 # OID reference psycopg2/lib/_range.py
 PSYCOPG_SUPPORTED_RANGE_TYPES = (3904, 3926, 3906, 3912, 3908, 3910)
 
-
 # int4range[], int8range[], numrange[], daterange[] tsrange[], tstzrange[]
 # OID reference psycopg2/lib/_range.py
 PSYCOPG_SUPPORTED_RANGE_ARRAY_TYPES = (3905, 3927, 3907, 3913, 3909, 3911)
@@ -204,12 +198,26 @@ def register_string_typecasters(connection):
         psycopg2.extensions.register_type(unicode_array_type, connection)
 
 
-def register_float_typecasters(connection):
-    # This function is to convert  pg types into decimal type
-    string_type_to_float = \
-        psycopg2.extensions.new_type(TO_STRING_NUMERIC_DATATYPES,
-                                     'TYPECAST_TO_DECIMAL', _DECIMAL)
-    psycopg2.extensions.register_type(string_type_to_float, connection)
+def is_numeric(val):
+    """Check if value is numeric or not"""
+    try:
+        if '.' in val:
+            float(val)
+        else:
+            int(val)
+    except ValueError:
+        return False
+    return True
+
+
+def numeric_typecasters(results):
+    # This function is to convert pg types to numeic type caster
+
+    for result in results:
+        for key, value in result.items():
+            if isinstance(result[key], str) and is_numeric(result[key]):
+                result[key] = float(result[key])
+    return results
 
 
 def register_binary_typecasters(connection):