我怎样才能使这个日期输入在 PostgreSQL 查询中起作用？

Question

我正在处理一个具有一系列连接并从中获取信息的查询，如下所示：

SELECT
fleet."name"                                                               AS "Fleet",
wp."tail"                                                                  AS "AC",
wp."iata"                                                                  AS "LOC",
CONCAT(usrr."firstName", ' ', usrr."lastName")                             AS "Supervisor",
CONCAT(usr."firstName", ' ', usr."lastName")                               AS "Mechanic",
to_char(wp."req" AT TIME ZONE 'utc' AT TIME ZONE airbase."timeZone", :format)   AS "ETA",
to_char(wp."etr" AT TIME ZONE 'utc' AT TIME ZONE airbase."timeZone", :format)   AS "ETD",
round(cast(date_part('hour', age(wp."etr", wp."req")) / 24 AS NUMERIC), 2) AS TAT,
NULL                                                                       AS "Position",
wp."barcode"                                                               AS "WP",
breq."barcode"                                                             AS "REQ/BLOQ",
breq."name"                                                                AS "REQ Name",
jic."barcode"                                                              AS "Task BC",
jic."description"                                                          AS "Task Name",
jic."due_date"                                                             AS "Due date",
labor."name"                                                               AS "Skills",
CASE WHEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) > 0
          AND date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) > 0
  THEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) +
       date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) * 0.01
WHEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) > 0
     AND date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) = 0
  THEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date"))
WHEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) = 0
     AND date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) > 0
  THEN date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) * 0.01
WHEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) = 0
     AND date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) = 0
  THEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date"))
END                                                                        AS "Duration",
jic."resources_quantity"                                                   AS "nTec",
CASE WHEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) > 0
          AND date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) > 0
  THEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) +
       date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) * 0.01 *
       jic."resources_quantity"
WHEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) > 0
     AND date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) = 0
  THEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) * jic."resources_quantity"
WHEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) = 0
     AND date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) > 0
  THEN date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) * 0.01 *
       jic."resources_quantity"
WHEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) = 0
     AND date_part('minute', age(jic."estimated_end_date", jic."estimated_start_date")) = 0
  THEN date_part('hour', age(jic."estimated_end_date", jic."estimated_start_date")) * jic."resources_quantity"
END                                                                        AS "MH",
to_char(jic.estimated_start_date AT TIME ZONE 'utc' AT TIME ZONE airbase."timeZone", :format) AS "Start",
to_char(jic.estimated_end_date AT TIME ZONE 'utc' AT TIME ZONE airbase."timeZone", :format) AS "End",
usr.bp                                                                     AS "BP",
CASE WHEN breq.is_productive = 1 AND breq.task_type_id != 3
  THEN 'PROD'
WHEN breq.is_productive = 0 or breq.task_type_id = 3
  THEN 'NPROD' END                                                         AS "Tipo",
work_location."name"                                                       AS "Zone",
breq."review_status"                                                        AS "Acceptance",
CASE WHEN wp."published" = TRUE
  THEN 'PUBLISHED'
WHEN wp."published" = FALSE
  THEN 'UNPUBLISHED' END                                                   AS "Published"
FROM public."work_package" AS wp
INNER JOIN public."task" AS breq ON wp."id" = breq."work_package_id"
INNER JOIN public."labor" AS jic ON breq."id" = jic."task_id"
LEFT JOIN public."Skill" AS labor ON jic."skill_id" = labor."id"
LEFT JOIN public."user_labor" AS usr_l ON jic."id" = usr_l."labor_id"
LEFT JOIN public."User" AS usr ON usr_l."user_id" = usr."id"
LEFT JOIN public."Aircraft" AS aircraft ON wp."aircraft_id" = aircraft."id"
LEFT JOIN public."Fleet" AS fleet ON aircraft."fleetId" = fleet."id"
left JOIN public."Airbase" as airbase ON  wp.base_id = airbase.id
LEFT JOIN public."BSE_WORK_LOCATIONS" AS work_location ON wp."work_location_id" = work_location."id"
LEFT JOIN public."User" AS usrr ON wp."supervisor_user_id" = usrr."id"
WHERE wp."start" BETWEEN to_timestamp(:start) AND to_timestamp(:finish) OR wp."end"
BETWEEN to_timestamp(:start) AND to_timestamp(:finish);

该脚本由对不同 table 的不同字段的调用组成，然后对某些字段使用 case，调用插入格式以构建部分输出的输入，最后，我正在测试的 WHERE 语句关闭了对更有限的东西的调用。冲突位是最后一部分，带有 WHERE 语句。我使用了许多不同的方法，例如：模仿 table 在该字段上的相同结构，使用和不使用引号，使用 utc 时区，使用毫秒，直到现在都没有任何效果。原始字段具有时间戳类型，这就是我在那里使用解析的原因。这是在 DataGrip 上查看的输入：

到现在为止，在我删除引号后，它将完成该过程，但它什么也不会 return，即使我知道那里有数据。

有没有明显的地方我做错了？请帮忙。提前致谢！

Answer 1

因为该字段是一个时间戳，PostgreSQL 从具有以下格式的字符串反序列化一个：'YYYY-MM-DD HH:MM:SS.M'（注意单引号）。然后就可以正常使用了。

我怎样才能使这个日期输入在 PostgreSQL 查询中起作用？

How can i make this date input in a PostgreSQL query to work?

postgresql

timestamp

date

input

datagrip