| 0 |
scheduled_departure_time |
CASE\n WHEN regexp_full_match("scheduled_departure_time", '\d{1,2}:\d{2}\s(a\.m\.|p\.m\.)') THEN CAST(strptime(REPLACE(REPLACE("scheduled_departure_time", 'a.m.', 'AM'), 'p.m.', 'PM'), '%I:%M %p') AS TIME)\n WHEN regexp_full_match("scheduled_departure_time", '\d{1,2}:\d{2}(a|p)') THEN CAST(strptime(REPLACE(REPLACE("scheduled_departure_time" || ':00', 'a', ' AM'), 'p', ' PM'), '%I:%M:%S %p') AS TIME)\nEND |
To transform the 'scheduled_departure_time' column from VARCHAR to TIME, we need to: 1. Replace 'a.m.' with 'AM' and 'p.m.' with 'PM' for proper parsing. 2. Use strptime() to parse the string into a timestamp. 3. Cast the result to TIME.\nWe don't need to include seconds in the format string since they're not present in the input.\n\nTo transform the 'scheduled_departure_time' column from VARCHAR to TIME, we need to consider the following: 1. The regex pattern '\d{1,2}:\d{2}(a|p)' indicates that the time is in the format 'HH:MMa' or 'HH:MMp' (e.g., '9:30a' or '2:45p'). 2. We need to convert this format to a standard time format that DuckDB can recognize. 3. We should add ':00' to the time string to represent seconds, which are not present in the original format. 4. We need to replace 'a' with 'AM' and 'p' with 'PM' for proper parsing. 5. Finally, we'll use the strptime function to parse the modified string into a time format.\n\n |
| 1 |
actual_departure_time |
CASE\n WHEN regexp_full_match("actual_departure_time", '\d{1,2}:\d{2}\s(?:a\.m\.|p\.m\.)') THEN CAST(strptime(REPLACE(REPLACE("actual_departure_time", 'a.m.', 'AM'), 'p.m.', 'PM'), '%I:%M %p') AS TIME)\n WHEN regexp_full_match("actual_departure_time", '\d{1,2}:\d{2}\s(?:a\.m\.|p\.m\.)\sDelayed') THEN CAST(strptime(REPLACE(REPLACE(REGEXP_REPLACE("actual_departure_time", ' Delayed$', ''), 'a.m.', 'AM'), 'p.m.', 'PM'), '%I:%M %p') AS TIME)\nEND |
To transform the 'actual_departure_time' column from VARCHAR to TIME, we need to: 1. Replace 'a.m.' with 'AM' and 'p.m.' with 'PM' to match the expected format. 2. Use strptime to parse the string into a timestamp, using the format '%I:%M %p' (hour:minute AM/PM). 3. Cast the result to TIME.\n\nTo transform the 'actual_departure_time' column from VARCHAR to TIME, we need to: 1. Remove the 'Delayed' suffix from the string 2. Convert 'a.m.' and 'p.m.' to 'AM' and 'PM' respectively 3. Use strptime to parse the resulting string into a time format 4. Cast the result to TIME\n\n |
| 2 |
scheduled_arrival_time |
CASE\n WHEN regexp_full_match("scheduled_arrival_time", '\d{1,2}:\d{2} (a\.m\.|p\.m\.)') THEN CAST(strptime(REPLACE(REPLACE("scheduled_arrival_time", 'a.m.', 'AM'), 'p.m.', 'PM'), '%I:%M %p') AS TIME)\n WHEN regexp_full_match("scheduled_arrival_time", '\d{1,2}:\d{2}a Dec 2') THEN CAST(strptime(REPLACE(REPLACE(SPLIT_PART("scheduled_arrival_time", ' ', 1), 'a', ' AM'), 'p', ' PM'), '%I:%M %p') AS TIME)\n WHEN regexp_full_match("scheduled_arrival_time", '\d{1,2}:\d{2}[ap] Dec \d{1,2}') THEN CAST(strptime(LEFT(REPLACE(REPLACE("scheduled_arrival_time", 'a ', 'AM '), 'p ', 'PM '), 7), '%I:%M %p') AS TIME)\n WHEN regexp_full_match("scheduled_arrival_time", '\d{1,2}/\d{2} \d{1,2}:\d{2} [ap]\.m\.') THEN CAST(strptime(REPLACE(REPLACE(split_part("scheduled_arrival_time", ' ', 2) || ' ' || split_part("scheduled_arrival_time", ' ', 3), 'a.m.', 'AM'), 'p.m.', 'PM'), '%I:%M %p') AS TIME)\nEND |
To transform the 'scheduled_arrival_time' column from VARCHAR to TIME, we need to: 1. Replace 'a.m.' with 'AM' and 'p.m.' with 'PM' to match the expected format. 2. Use strptime to parse the string into a datetime object. 3. Cast the result to TIME.\nThe pattern '%I:%M %p' is used because: - %I represents hour in 12-hour format - %M represents minutes - %p represents AM/PM indicator\n\nTo transform the 'scheduled_arrival_time' column from VARCHAR to TIME, we need to consider the following: 1. The regex pattern '\d{1,2}:\d{2}a Dec 2' suggests a time format like '9:30a Dec 2' or '11:45a Dec 2'. 2. We need to remove the 'Dec 2' part as it's not part of the time. 3. The 'a' in the time string indicates AM, which needs to be properly formatted for the strptime function. 4. The time format is in 12-hour notation, so we need to use '%I' for hour instead of '%H'. 5. We don't have seconds in our input, so we'll use '%I:%M %p' as the format string.\n\nTo transform the 'scheduled_arrival_time' column from VARCHAR to TIME, we need to consider the following: 1. The given regex pattern '\d{1,2}:\d{2}[ap] Dec \d{1,2}' suggests that the time is in the format 'HH:MMa/p'. 2. The 'Dec \d{1,2}' part represents the date, which we need to ignore for the TIME conversion. 3. We need to convert the 'a/p' notation to 'AM/PM' for proper parsing. 4. The strptime function should be used with the appropriate format string to parse the time portion. 5. Finally, we need to cast the result to TIME.\n\nTo transform the 'scheduled_arrival_time' column from VARCHAR to TIME, we need to consider the following: 1. The current format is 'MM/DD HH:MM a.m./p.m.' 2. We need to extract only the time part and convert it to a 24-hour format 3. We should use the strptime function to parse the string into a time format 4. We need to replace 'a.m.' and 'p.m.' with 'AM' and 'PM' respectively for proper parsing 5. Finally, we cast the result to TIME\n\n |
| 3 |
actual_arrival_time |
CASE\n WHEN regexp_full_match("actual_arrival_time", '\d{1,2}:\d{2}\s(?:a\.m\.|p\.m\.)') THEN CAST(strptime(REPLACE(REPLACE("actual_arrival_time", 'a.m.', 'AM'), 'p.m.', 'PM'), '%I:%M %p') AS TIME)\n WHEN regexp_full_match("actual_arrival_time", 'Not Available') THEN CASE \n WHEN "actual_arrival_time" = 'Not Available' THEN NULL \n ELSE CAST("actual_arrival_time" AS TIME) \nEND\n WHEN regexp_full_match("actual_arrival_time", 'Contact Airline') THEN CAST(NULL AS TIME)\nEND |
To transform the 'actual_arrival_time' column from VARCHAR to TIME, we need to: 1. Replace 'a.m.' with 'AM' and 'p.m.' with 'PM' to match the expected format. 2. Use strptime to parse the string into a datetime object. 3. Cast the result to TIME.\nThe input format is '%I:%M %p', where: - %I represents hour in 12-hour format - %M represents minutes - %p represents AM/PM indicator\n\nTo transform the 'actual_arrival_time' column from VARCHAR to TIME, we need to consider the following: 1. The column only contains the value 'Not Available'. 2. We cannot directly cast 'Not Available' to a TIME data type. 3. In SQL, casting a non-time string to TIME typically results in NULL. 4. Therefore, the cast will effectively convert all 'Not Available' values to NULL.\n\nTo transform the 'actual_arrival_time' column from VARCHAR to TIME, we need to consider the following: 1. The column only contains the value 'Contact Airline'. 2. This value cannot be directly cast to a TIME data type. 3. Attempting to cast this string to TIME will result in an error or null value. 4. In this case, it's not possible to perform a simple cast operation that will result in a valid TIME value.\n\n |
