What kind of index should I be using on the timestamp column for it to
be used for BETWEEN and > operations?
radius=# EXPLAIN SELECT * from alldata where loggedat > '2003-05-07';
NOTICE: QUERY PLAN:
Seq Scan on alldata (cost=0.00..286136.26 rows=1428487 width=780)
EXPLAIN
radius=# \d alldata
Table "alldata"
Column | Type |
Modifiers
-----------------------+--------------------------+----------------------------------------------------query
| text |
cisco_nas_port | text |
h323_remote_address | text |
h323_conf_id | text |
h323_setup_time | text |
h323_call_origin | text |
h323_call_type | text |
h323_connect_time | text |
h323_disconnect_time | text |
h323_disconnect_cause | text |
h323_voice_quality | text |
h323_gw_id | text |
nas_ip_address | text |
nas_port_type | text |
called_station_id | text |
calling_station_id | text |
acct_status_type | text |
acct_session_id | text |
acct_input_octets | text |
acct_output_octets | text |
acct_input_packets | text |
acct_output_packets | text |
acct_session_time | text |
acct_delay_time | text |
identity | integer | default
nextval('alldata_identity_seq'::text)
loggedat | timestamp with time zone | default
('now'::text)::timestamp(6) with time zone
Indexes: alldata_call_origin_idx,
alldata_call_type_idx,
alldata_conf_id_idx,
alldata_nas_ip_address_idx,
alldate_loggedat_idx,
remote_address_idx
Unique keys: alldata_identity_pkey
radius=# \d alldate_loggedat_idx
Index "alldate_loggedat_idx"
Column | Type
----------+--------------------------
loggedat | timestamp with time zone
btree
