happyhour/sample_text_time_conversion.sql at master · el7/happyhour · GitHub

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/* sample time conversion for txt-fields with ISO 8601 formatted strings */
/* (today) includes day filter */

SELECT DISTINCT
    v."txtVenueID",
    v."txtVenueName",
    s."txtSpecialID",
    s."txtSpecialName",
    s."txtSpecialNote",
    h."txtSpecialStart1",
    h."txtSpecialEnd1"
FROM
    "tblVenue" v
JOIN
    "tblSpecials" s ON v."txtVenueID" = s."txtVenueID"
JOIN
    "tblSpecialHours" h ON s."txtSpecialID" = h."txtSpecialID"
WHERE
    h."intDayOfWeek" = EXTRACT(DOW FROM CURRENT_DATE)
    AND
    (h."txtSpecialStart1"::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles')
        <= (CURRENT_DATE + INTERVAL '1 day')::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles' + TIME '02:30:00'
    AND
    (h."txtSpecialEnd1"::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles')::TIME
        >= CURRENT_TIME AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles';

/* (hour) */

SELECT DISTINCT
    v."txtVenueID",
    v."txtVenueName",
    s."txtSpecialID",
    s."txtSpecialName",
    h."txtSpecialStart1",
    h."txtSpecialEnd1"
FROM
    "tblVenue" v
JOIN
    "tblSpecials" s ON v."txtVenueID" = s."txtVenueID"
JOIN
    "tblSpecialHours" h ON s."txtSpecialID" = h."txtSpecialID"
WHERE
    h."intDayOfWeek" = EXTRACT(DOW FROM CURRENT_DATE)
    AND
    (h."txtSpecialStart1"::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles')
        <= (CURRENT_TIME + INTERVAL '1 hour')::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles' + INTERVAL '1 hour'
    AND
    (h."txtSpecialEnd1"::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles')::TIME
        >= CURRENT_TIME AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles';


/* (now) */

SELECT DISTINCT
    v."txtVenueID",
    v."txtVenueName",
    s."txtSpecialID",
    s."txtSpecialName",
    s."txtNote",
    h."txtSpecialStart1",
    h."txtSpecialEnd1"
FROM
    "tblVenue" v
JOIN
    "tblSpecials" s ON v."txtVenueID" = s."txtVenueID"
JOIN
    "tblSpecialHours" h ON s."txtSpecialID" = h."txtSpecialID"
WHERE
    h."intDayOfWeek" = EXTRACT(DOW FROM CURRENT_DATE)
    AND
    (h."txtSpecialStart1"::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles')
        <= (CURRENT_TIME + INTERVAL '0 hour')::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles' + INTERVAL '0 hour'
    AND
    (h."txtSpecialEnd1"::TIMESTAMP AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles')::TIME
        >= CURRENT_TIME AT TIME ZONE 'UTC' AT TIME ZONE 'America/Los_Angeles';